Haynes General Motors: Cadillac Eldorado, Seville, Deville Automotive Repair Manual 1563923475, 9781563923470

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Eldorado & Seville (1986 thru 1991) Deville FWD (1986 thru 1993) Fleetwood FWD (1986 thru 1992)

Toronado (1986 thru 1992)

Riviera (1986 thru 1993)

Every manual based on a complete teardown and rebuild

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General Motors Cadillac Eldorado, Seville, Deville and Fleetwood (FWD) Oldsmobile Toronado Buick Riviera

Automotive

Repair

Manual by Robert Maddox and John H Haynes Member of the Guild of Motoring Writers

Models covered: Cadillac Eldorado (1986 thru 1991) Cadillac Seville (1986 thru 1991) Cadillac Deville (FWD) (1986 thru 1993) Cadillac Fleetwood (FWD) (1986 thru 1992) Oldsmobile Toronado (1986 thru 1992) Buick Riviera (1986 thru 1993)

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Haynes North America, Inc 861 Lawrence Drive

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California 91320 USA

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About this manual must pass on to you to cover its labor and overhead costs. An added benefit is the sense of satisfaction and accomplishment that you feel after doing the job yourself.

Its purpose The purpose of this manual is to help you get the best value from your vehicle. It can do so in several ways. It can help you decide what work must be done, even if you choose to have it done by a dealer service department or a repair shop; it provides information and procedures for routine mainte-

nance and servicing; and it offers diagnostic and repair procedures to follow when trouble

occurs. We hope you use the manual to tackle the work yourself. For many simpler jobs, doing it yourself may be quicker than arranging an appointment to get the vehicle into a shop and making the trips to leave it and pick it up. More importantly, a lot of money can be saved by avoiding the expense the shop

Using the manual The manual is divided into Chapters. Each Chapter is divided into numbered Sections, which are headed in bold type between horizontal lines. Each Section consists of consecutively numbered paragraphs. At the beginning of each numbered Section you will be referred to any illustrations which apply to the procedures in that Section. The reference numbers used in illustration captions pinpoint the pertinent Section and the Step within that Section. That is, illustration 3.2 means the illustration refers to Section 3 and Step (or paragraph) 2 within

that Section. Procedures, once described in the text, are not normally repeated. When it’s necessary to refer to another Chapter, the reference will be given as Chapter and Section number. Cross references given without use of the word “Chapter” apply to Sections and/or paragraphs in the same Chapter. For example, “see Section 8” means in the same Chapter. References to the left or right side of the vehicle assume you are sitting in the driver’s seat, facing forward. Even though we have prepared this manual with extreme care, neither the publisher nor the author can acoept responsibility for any errors in, or omissions from, the information given.

NOTE A Note provides information necessary to properly complete a procedure or information which will make the procedure easier to understand.

CAUTION A Caution provides a special procedure or special steps which must be taken while completing the procedure where the Caution is found. Not heeding a Caution can result in damage to the assembly being worked on.

WARNING A Warning provides a special procedure or special steps which must be taken while completing the procedure where the Warning is found. Not heeding a Warning can result in personal injury.

Acknowledgements Wiring diagrams and certain illustrations originated exclusively for Haynes North America, Inc. by Valley Forge Technical Information Systems. Technical writers who contributed to this project include Jeff Kibler, Jay Storer and Larry Warren.

© Haynes North America, Inc. 1999 With permission from J.H. Haynes & Co. Ltd.

A book in the Haynes Automotive Repair Manual Series a Printed in the U.S.A. —_—.s eeeEESSSSSFSFSSSMSSSeEeeee All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage or retrieval system, without permission in writing from the copyright holder.

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ISBN 1 56392 347 5

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While every attempt is made to ensure that the information in this manual is correct, no liability can be accepted by the authors or publishers for loss, damage or injury caused by any errors in, or omissions from, the information given. EEE 99-384

0-3

Contents Introductory pages About this manual Introduction to the Cadillac Eldorado, Seville, Deville and Fleetwood, Oldsmobile Toronado and Buick Riviera Vehicle identification numbers Buying parts Maintenance techniques, tools and working facilities Jacking and towing Booster battery (jump) starting Automotive chemicals and lubricants Conversion factors Safety first! Troubleshooting

0-2 0-4 0-5 0-7

0-7 0-13 0-13 0-14 0-15 0-16 0-17

Chapter 1 Tune-up and routine maintenance

Chapter 2

PartA

V6 engine

Chapter 2

2A-1

PartB

V8 engines

Chapter 2

1-1

2B-1

PartC

General engine overhaul procedures

2C-1

Chapter 3 Cooling, heating and air conditioning systems

3-1

Chapter 4 Fuel and exhaust systems

4-1

Chapter 5 Engine electrical systems

5-1

Chapter 6 Emissions control systems

6-1

Chapter 7 Automatic transaxle

¥

Chapter 8 Driveaxles

8 9 9-1

Chapter 10

10.

Suspension and steering systems

10-1

Chapter 11 Body

11-1

Chapter 12 Chassis electrical system

‘

8-1

Chapter 9 Brakes

‘

7-1

11

12 12-1

Wiring diagrams

12-24

Index

inp-1

IND

Haynes mechanic, author and photographer with 1991 Cadillac Deville

Introduction to the Cadillac Eldorado, Seville, Deville and Fleetwood, Oldsmobile Toronado, and Buick Riviera front- wheel drive models Cadillac Eldorado and Fleetwood Coupe, Oldsmobile Toronado and Buick Riviera are two-door models, while the Cadillac Seville, Deville and Fleetwood models are

four-door sedans. Cadillac models have 4.1L, 4.5L and 4.9L V8 engines while Buick Riviera and Oldsmobile Toronado models are powered by 3.8L (3800) V6 engines. All models are equipped with fuel injection. The transversely mounted engine trans-

mits power to the front wheels through a four-speed automatic transaxle via independent driveaxles. Suspension is independent in the front,

utilizing coil springs with struts and lower control arms to locate the knuckle assembly at each wheel. The rear suspension on Cadillac Eldorado and Seville, Oldsmobile Toronado and Buick Riviera models uses a transverse plastic composite spring, lower control arms

and

suspension

knuckle

and

shock

absorbers. The rear suspension on Cadillac Deville and Fleetwood models features strut/coil spring assemblies, trailing arms and lateral link rods. The rack-and-pinion steering unit is mounted behind the engine with powerassist as standard equipment. The brakes are disc at the front and drum at the rear, depending on model, with power assist standard. An Anti-lock Braking System (ABS) is standard on most models.

0-5

Vehicle identification numbers Vehicle Identification Number

Cadillac

(VIN)

1986 and 1987 Obe reret nes otatnncatne tetecnoe aa ee. Ore 1988 Oe eauentnctee seeeentean svat eoncawuc eee 1989 Sku Aare rence phicroc RRELTeCEO Ly EPCPDEE 1990 Se Ree RS cE Mt csarecuene caartiees 1991 and 1992 BRR reer eee tence ciacesoneseneass 1993 BB eaecten saeeece Saree stace eee c casera

This very important identification number is stamped on a plate attached to the left

side of the dashboard and is visible through the driver’s side of the windshield (see illustration). The VIN also appears on the Vehicle Certificate of Title and Registration. It contains information such as where and when the vehicle was manufactured, the model year and the body style.

VIN engine and model year codes Two particularly important pieces of information found in the VIN are the engine code and the model year code. Counting

from the left, the engine code letter designation is the 8th digit and the model year code letter designation is the 10th digit. On the models covered by this manual the engine codes are:

4.1L V8 4.5L V8 4.5L V8 4.5L V8 4.9L V8 4.9L V8

On the models covered by this manual the model year codes are:

Geese dace cere eetaeeptvomseraricear hacer 1986 Pelee Mise dd oven ca cwadsasectassentssncdactenves 1987 ees nated eenvartenrsneds iseatvsctesizoecs 1988 IK Matrersaeeret reaches sivvdecsiiveaisesese 1989 Leen deterrent Mooneceren toSecsixsaus eae 1990 MWicserecsercorencereseosteoncvesaseneaucteres 1991 Nicereasavectrycceceveetvec cttectaasteci ts 1992 Pirceciscereastetesssatesvtesccereneiatmtettess 1993

The vehicle Identification Number (VIN) is on a plate attached to the top of the

dashboard on the driver’s side of the vehicle - it can be seen through the windshield

Buick and Oldsmobile

Vehicle Certification label

Body identification plate

1986 through 1988

The Vehicle Certification Plate (VC label) is affixed to the rear of the left front door (see illustration). The plate contains the name of the manufacturer, the month and year of production, the Gross Vehicle Weight Rating (GVWR) and the certification statement.

The body identification plate is located in the engine compartment on the upper surface of the radiator support (see illustration).

BB eee ed eise oe ACAD wag Son TnteG cea Rn 3.8L V6 1989 through 1991

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1992 [Secopasesatea ee eeattes mea cbee eames 3.8L V6

Like the VIN, it contains valuable information

concerning the production of the vehicle, as well as information on the options with which

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The Vehicle Certification label is located on the end of the driver

side door, above the tire loading information label

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The body identification plate can be found on the radiator support

Vehicle identification numbers

The V8 engine identification number (arrow) can be seen from below the vehicle

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> FRONT OF VEHICLE

On V6 engines the engine identification number is in one of two places: At the end of the block adjacent to the water pump, or at the front side of the block adjacent to the starter

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The transaxle identification number tag can be seen from below the vehicle

it is equipped. This plate is especially useful for matching the color and type of paint for repair work.

surface of the block at the transaxle left (driver side) end (see illustration), adjacent to the starter or on the cylinder head below the valve cover at the front (radiator) side.

Engine identification number The ID number on V8 engines is located on a tag at the left hand side at the rear of the engine block (see illustration). The V8 engine unit number label is on the rear (firewall) side valve cover (see illustration). On V6 engines the ID number can be found adjacent to the water pump, on a pad at the front

Service parts identification label This label is located inside the trunk on the spare tire cover. It lists the VIN number, wheelbase, paint number, options and other information specific to your vehicle. Always refer to this label when ordering parts.

Transaxle identification number The transaxle identification number is located on the right rear side of the transaxle (see illustration).

Vehicle Emissions Control Information label The Vehicle Emissions Control Information label is under the hood, often attached to the left shock tower (see Chapter 6 for more information and an illustration of the label).

— 0-7

Buying parts Replacement parts are available from many sources, which generally fall into one of two categories - authorized dealer parts departments and independent retail auto parts stores. Our advice concerning these parts is as follows: Retail auto parts stores: Good auto parts stores will stock frequently needed

components which wear out relatively fast, such as clutch components, exhaust systems, brake parts, tune-up parts, etc. These stores often supply new

or reconditioned

parts on an exchange basis, which can save a considerable amount of money. Discount auto parts stores are often very good places to buy materials and parts needed for general vehicle maintenance such as oil, grease, filters, spark plugs, belts, touch-up paint, bulbs, etc. They also usually sell tools and general accessories, have convenient hours, charge lower prices and can often be found not far from home. Authorized dealer parts department: This is the best source for parts which are

unique to the vehicle and not generally available elsewhere (such as major engine parts, transmission parts, trim pieces, etc.). Warranty information: \f the vehicle is

still covered under warranty, be sure that any replacement parts purchased - regardless of the source - do not invalidate the warranty!

To be sure of obtaining the correct parts, have engine and chassis numbers available and, if possible, take the old parts along for positive identification.

Maintenance techniques, tools and working facilities Maintenance techniques There are a number of techniques involved in maintenance and repair that will be referred to throughout this manual. Application of these techniques will enable the home

this task, as well as other repair procedures, such as the repair of threaded holes that have been stripped out. Flat washers and lockwashers, when removed from an assembly, should always

be replaced exactly as removed. Replace any damaged washers with new ones. Never use a lockwasher on any soft metal surface (Such as aluminum), thin sheet metal or plastic.

mechanic to be more efficient, better

organized and capable of performing the various tasks properly, which will ensure that the repair job is thorough and complete.

Fasteners Fasteners are nuts, bolts, studs and screws used to hold two or more parts together. There are a few things to keep in mind when working with fasteners. Almost all of them use a locking device of some type, either a lockwasher, locknut, locking tab or thread adhesive. All threaded fasteners should be clean and straight, with undam-

aged threads and undamaged corners on the hex head where the wrench fits. Develop the habit of replacing all damaged nuts and bolts with new ones. Special locknuts with nylon or fiber inserts can only be used once. If they are removed, they lose their locking ability and must be replaced with new ones. Rusted nuts and bolts should be treated with a penetrating fluid to ease removal and prevent breakage. Some mechanics use turpentine in a spout-type oil can, which works quite well. After applying the rust penetrant,

Grade 1 or 2

If a bolt or stud breaks off in an assembly, it can be drilled and removed with a special tool commonly available for this purpose. Most automotive machine shops can perform

Grade 8

Bolt strength marking (standard/SAE/USS; bottom - metric)

Grade

Identification

Grade

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let it work for a few minutes before trying to loosen the nut or bolt. Badly rusted fasteners may have to be chiseled or sawed off or removed with a special nut breaker, available at tool stores.

Grade 5

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Arabic 10 Metric hex nut strength markings

Metric stud strength markings 00-1 HAYNES

0-8

Maintenance techniques, tools and working facilities

Fastener sizes For a number of reasons, automobile manufacturers are making wider and wider use of metric fasteners. Therefore, it is important to be able to tell the difference between standard (sometimes called U.S. or SAE) and

Metric thread sizes

metric hardware, since they cannot be inter-

changed. All bolts, whether standard or metric, are sized according to diameter, thread pitch and

length. For example, a standard 1/2 - 13 x 1 bolt is 1/2 inch in diameter, has 13 threads per inch and is 1 inch long. An M12 - 1.75 x 25 metric bolt is 12 mm

in diameter, has a thread

pitch of 1.75 mm (the distance between threads) and is 25 mm long. The two bolts are nearly identical, and easily confused, but they are not interchangeable. In addition to the differences in diameter, thread pitch and length, metric and standard bolts can also be distinguished by examining the bolt heads. To begin with, the distance across the flats on a standard bolt head is measured in inches, while the same dimension on a metric bolt is sized in millime-

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Nm 9to 12 19 to 28 38 to 54 68 to 96 109 to 154

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7 to 10 17 to 24 30 to 44 34 to 47

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40 to 60 55 to 80

18 20 32 38 55

17 19 30 37 55

to to to to to

24 27 43 51 74

55 to 81 75 to 108

ters (the same is true for nuts). As a result, a

standard wrench should not be used on a metric bolt anda metric wrench should not be used on a standard bolt. Also, most standard bolts have slashes radiating out from the center of the head to denote the grade or strength of the bolt, which is an indication of the amount of torque that can be applied to it. The greater the number of slashes, the greater the strength of the bolt. Grades 0 through 5 are commonly used on automobiles. Metric bolts have a property class (grade) number, rather than a slash, molded into their heads to indicate bolt strength. In this case, the higher the number, the stronger the bolt. Property class numbers 8.8, 9.8 and 10.9 are commonly used on automobiles. Strength markings can also be used to distinguish standard hex nuts from metric hex nuts. Many standard nuts have dots stamped into one side, while metric nuts are marked with a number. The greater the number of dots, or the higher the number, the greater the strength of the nut. Metric studs are also marked on their ends according to property class (grade). Larger studs are numbered (the same as metric bolts), while smaller studs carry a geometric code to denote grade. It should be noted that many fasteners, especially Grades 0 through 2, have no distinguishing marks on them. When such is the case, the only way to determine whether it is standard or metric is to measure the thread pitch or compare it to a known fastener of the same size. Standard fasteners are often referred to as SAE, as opposed to metric. However, it should be noted that SAE technically refers to a non-metric fine thread fastener only. Coarse thread non-metric fasteners are referred to as USS sizes. Since fasteners of the same size (both standard and metric) may have different

Ter f

00-2 HAYNES

Standard (SAE and USS) bolt dimensions/grade marks

Metric bolt dimensions/grade marks

strength ratings, be sure to reinstall any bolts, studs or nuts removed from your vehicle in their original locations. Also; when replacing a fastener with a new one, make sure that the new one has a strength rating equal to or greater than the original.

specific torque values, many of which are noted in the Specifications at the beginning of each Chapter. Be sure to follow the torque recommendations closely. For fasteners not assigned a specific torque, a general torque value chart is presented here as a guide. These torque values are for dry (unlubricated) fasteners threaded into steel or cast iron (not aluminum). As was previously mentioned, the size and grade of a fastener determine the amount of torque that can safely be applied

P Property class (bolt strength) Grade marks (bolt strength) L Length (in millimeters) Length (in inches) T Thread pitch (distance between i) Thread pitch (number of threads in millimeters) threads per inch) D Diameter D Nominal diameter (in inches) ee

Tightening sequences and procedures Most threaded fasteners should be tightened to a specific torque value (torque is the twisting force applied to a threaded component such as a nut or bolt). Overtightening

the fastener can weaken it and cause break, while undertightening can cause eventually come loose. Bolts, screws studs, depending on the material they made

of and their thread

diameters,

it to it to and are

have

to it. The figures listed here are approximate

for Grade 2 and Grade 3 fasteners. Higher grades can tolerate higher torque values.

Fasteners laid out in a pattern, such as cylinder head bolts, oil pan bolts, differential

cover bolts, etc., must be loosened or tightened in sequence to avoid warping the com-

Maintenance techniques, tools and working facilities

Micrometer set

ponent. This sequence will normally be shown in the appropriate Chapter. If a specific pattern is not given, the following procedures can be used to prevent warping.

Initially, the bolts or nuts should

be

assembled finger-tight only. Next, they should be tightened one full turn each, in a criss-cross or diagonal pattern. After each one has been tightened one full turn, return to the first one and tighten them all one-half turn, following the same pattern. Finally, tighten each of them one-quarter turn at a time until each fastener has been tightened to the proper torque. To loosen and remove the fasteners, the procedure would be reversed.

Component disassembly Component disassembly should be done with care and purpose to help ensure that the parts go back together properly. Always keep track of the sequence in which parts are removed. Make note of special characteristics or marks on parts that can be installed more than one way, such as a grooved thrust washer on a shaft. It is a good idea to lay the disassembled parts out on a clean surface in the order that they were removed. It may also be helpful to make

sketches or take instant photos of components before removal. When removing fasteners from a component, keep track of their locations. Sometimes threading a bolt back in a part, or putting the washers and nut back on a stud, can prevent mix-ups later. If nuts and bolts

Dial indicator set

identify the two halves with numbered pieces of masking tape so they can be easily reconnected.

Gasket sealing surfaces Throughout any vehicle, gaskets are used to seal the mating surfaces between two parts and keep lubricants, fluids, vacuum or pressure contained in an assembly. Many times these gaskets are coated with a liquid or paste-type gasket sealing compound before assembly. Age, heat and pressure can sometimes cause the two parts to stick together so tightly that they are very difficult to separate. Often, the assembly can be loosened by striking it with a soft-face hammer near the mating surfaces. A regular hammer can be used if a block of wood is placed between the hammer and the part. Do not hammer on cast parts or parts that could be easily damaged. With any particularly stubborn part, always recheck to make sure that every fastener has been removed. Avoid using a screwdriver or bar to pry apart an assembly, as they can easily mar the gasket sealing surfaces of the parts, which must remain smooth. If prying is absolutely necessary, use an old broom handle, but keep in mind that extra clean up will be necessary if the wood splinters. After the parts are separated, the old gasket must be carefully scraped off and the gasket surfaces cleaned. Stubborn gasket material can be soaked with rust penetrant or treated with a special chemical to soften it so

cannot be returned to their original locations,

it can be easily scraped off. A scraper can be

they should be kept in a compartmented box or aseries of small boxes. A cupcake or muffin tin is ideal for this purpose, since each cavity can hold the bolts and nuts from a par-

fashioned from a piece of copper tubing by flattening and sharpening one end. Copper is recommended because it is usually softer than the surfaces to be scraped, which reduces the chance of gouging the part. Some gaskets can be removed with a wire

ticular area (i.e. oil pan bolts, valve cover bolts, engine mount bolts, etc.). A pan of this type is especially helpful when working on assemblies with very small parts, such as the carburetor,

alternator, valve train or interior

dash and trim pieces. The cavities can be

brush, but regardless of the method used, the mating surfaces must be left clean and smooth. If for some reason the gasket surface is gouged, then a gasket sealer thick

tents.

enough to fill scratches will have to be used during reassembly of the components. For

Whenever wiring looms, harnesses or connectors are separated, it is a good idea to

most applications, a non-drying (or semi-drying) gasket sealer should be used.

marked with paint or tape to identify the con-

0-9

Hose removal tips Warning: /f the vehicle is equipped with air conditioning, do not disconnect any of the A/C hoses without first having the system depressurized by a dealer service department or a service station. Hose removal precautions closely parallel gasket removal precautions. Avoid scratching or gouging the surface that the hose mates against or the connection may leak. This is especially true for radiator hoses. Because

of various chemical

reactions, the

rubber in hoses can bond itself to the metal spigot that the hose fits over. To remove a hose, first loosen the hose clamps that secure it to the spigot. Then, with slip-joint pliers, grab the hose at the clamp and rotate it around the spigot. Work it back and forth until it is completely free, then pull it off. Silicone or other lubricants will ease removal if they can be applied between the hose and the outside of the spigot. Apply the same lubricant to the inside of the hose and the outside of the spigot to simplify installation. As a last resort (and if the hose is to be replaced with a new one anyway), the rubber can be slit with a knife and the hose peeled from the spigot. If this must be done, be careful that the metal connection is not damaged. If a hose clamp is broken or damaged, do not reuse it. Wire-type clamps usually weaken with age, so it is a good idea to replace them with screw-type clamps whenever a hose is removed.

Tools A selection of good tools is a basic requirement for anyone who plans to maintain and repair his or her own vehicle. For the owner who has few tools, the initial investment might seem high, but when compared to the spiraling costs of professional auto maintenance and repair, it is a wise one. To help the owner decide which tools are needed to perform the tasks detailed in this manual, the following tool lists are offered: Maintenance and minor repair, Repair/overhaul and Special. The newcomer to practical mechanics

Maintenance techniques, tools and working facilities

0-10

Hand-operated vacuum pump

Compression gauge with spark plug hole adapter

Timing light

General purpose puller

Hydraulic lifter removal tool

Valve spring compressor

Ridge reamer

Piston ring groove cleaning tool

Ring removal/installation tool

Maintenance techniques, tools and working facilities

0-11

Ring compressor

Cylinder hone

Brake cylinder hone

Clutch plate alignment tool

Tap and die set

should start off with the maintenance and minor repair tool kit, which is adequate for the simpler jobs performed on a vehicle. Then, as confidence and experience grow, the owner can tackle more difficult tasks, buying additional tools as they are needed. Eventually the basic kit will be expanded into the repair and overhaul tool set. Over a period of time, the experienced do-it-yourselfer will assemble a tool set complete enough for most repair and overhaul procedures and will add tools from the special category when it is felt that the expense is justified by the frequency of use.

Standard screwdriver (5/16-inch x 6 inch) Phillips screwdriver (No. 2 x 6 inch) Combination pliers - 6 inch Hacksaw and assortment of blades Tire pressure gauge Grease gun Oil can Fine emery cloth Wire brush Battery post and cable cleaning tool Oil filter wrench Funnel (medium size) Safety goggles Jackstands (2) Drain pan Note: /f basic tune-ups are going to be part of routine maintenance, it will be necessary to purchase a good quality stroboscopic timing light and combination tachometer/dwell

ity, especially when various extensions and drives are available. We recommend the 1/2inch drive over the 3/8-inch drive. Althaugh the larger drive is bulky and more expensive, it has the capacity of accepting a very wide range of large sockets. Ideally, however, the mechanic should have a 3/8-inch drive set and a 1/2-inch drive set.

Maintenance and minor repair tool kit The tools in this list should be considered the minimum required for performance of routine maintenance, servicing and minor

repair work. We recommend the purchase of combination wrenches (box-end and openend combined in one wrench). While more expensive than open end wrenches, they

meter. Although they are included in the list of special tools, it is mentioned here because they are absolutely necessary for tuning most vehicles properly.

offer the advantages of both types of wrench.

Combination wrench set (1/4-inch to 1 inch or 6 mm to 19 mm) Adjustable wrench, 8 inch

Spark Spark Feeler Brake

plug wrench with rubber insert plug gap adjusting tool gauge set bleeder wrench

Repair and overhaul tool set These tools are essential for anyone who plans to perform major repairs and are in addition to those in the maintenance and minor repair tool kit. Included is a compre-

hensive set of sockets which, though expensive, are invaluable because of their versatil-

Socket set(s) Reversible ratchet Extension - 10 inch Universal joint Torque wrench (same size drive as sockets) Ball peen hammer - 8 ounce Soft-face hammer (plastic/rubber) Standard screwdriver (1/4-inch x 6 inch) Standard screwdriver (stubby 5/16-inch) Phillips screwdriver (No. 3 x 8 inch) Phillips screwdriver (stubby - No. 2) Pliers - vise grip Pliers - lineman’s Pliers - needle nose Pliers - snap-ring (internal and external)

Cold chisel - 1/2-inch Scribe Scraper (made from flattened copper tubing) Centerpunch Pin punches (1/16, 1/8, 3/16-inch) Stee! rule/straightedge - 12 inch

0-12

Maintenance techniques, tools and working facilities

Allen wrench set (1/8 to 3/8-inch or 4 mm to 10 mm) A selection of files Wire brush (large) Jackstands (second set) Jack (scissor or hydraulic type) Note: Another too! which is often useful is an electric drill with a chuck capacity of 3/8-inch and a set of good quality drill bits.

Special tools The tools in this list include those which are not used regularly, are expensive to buy, or which need to be used in accordance with their manufacturer’s instructions. Unless

these tools will be used frequently, it is not very economical to purchase many of them. A consideration would be to split the cost and use between yourself and a friend or friends. In addition, most of these tools can be obtained from a tool rental shop on a temporary basis. This list primarily contains only those tools and instruments widely available to the public, and not those special tools produced by the vehicle manufacturer for distribution to dealer service departments. Occasionally, references to the manufacturer’s special tools are included in the text of this manual.

Generally, an alternative method of doing the job without the special tool is offered. However, sometimes there is no alternative to their use. Where this is the case, and the tool

cannot be purchased or borrowed, the work should be turned over to the dealer service department or an automotive repair shop. Valve spring compressor Piston ring groove cleaning tool Piston ring compressor Piston ring installation tool Cylinder compression gauge Cylinder ridge reamer Cylinder surfacing hone Cylinder bore gauge Micrometers and/or dial calipers Hydraulic lifter removal tool Balljoint separator Universal-type puller Impact screwdriver Dial indicator set Stroboscopic timing light (inductive pick-up) Hand operated vacuum/pressure pump Tachometer/dwell meter Universal electrical multimeter Cable hoist Brake spring removal and installation tools Floor jack

Buying tools For the do-it-yourselfer who is just starting to get involved in vehicle maintenance and

repair, there are a number

of options

available when purchasing tools. If maintenance and minor repair is the extent of the work to be done, the purchase of individual

tools is satisfactory. If, on the other hand, extensive work is planned, it would be a good idea to purchase a modest tool set from one

of the large retail chain stores. A set can usually be bought at a substantial savings over the individual tool prices, and they often come with a tool box. As additional tools are needed, add-on sets, individual tools and a larger tool box can be purchased to expand

the tool selection. Building a tool set gradually allows the cost of the tools to be spread over a longer period of time and gives the mechanic the freedom to choose only those tools that will actually be used. Tool stores will often be the only source of some of the special tools that are needed, but regardless of where tools are bought, try to avoid cheap ones, especially when buying screwdrivers and sockets, because they won’t last very long. The expense involved in replacing cheap tools will eventually be greater than the initial cost of quality tools.

Care and maintenance of tools Good tools are expensive, so it makes sense to treat them with respect. Keep them clean and in usable condition and store them properly when not in use. Always wipe off any dirt, grease or metal chips before putting them away. Never leave tools lying around in the work area. Upon completion of a job, always check closely under the hood for tools that may have been left there so they won’t get lost during a test drive. Some tools, such as screwdrivers, pliers, wrenches and sockets, can be hung ona panel mounted on the garage or workshop wall, while others should be kept in a tool box or tray. Measuring instruments, gauges, meters, etc. must be carefully stored where they cannot be damaged by weather or impact from other tools. When tools are used with care and stored properly, they will last a very long time. Even with the best of care, though, tools will wear out if used frequently. When a tool is damaged or worn out, replace it. Subsequent jobs will be safer and more enjoyable if you do.

How to repair damaged threads Sometimes, the internal threads of a nut or bolt hole can become stripped, usually from overtightening. Stripping threads is an all-too-common occurrence, especially when

working with aluminum parts, because aluminum is so soft that it easily strips out. Usually, external or internal threads are only partially stripped. After they’ve been cleaned up with a tap or die, they’Il still work. Sometimes, however, threads are badly dam-

Bi

the specified size, then run the threaded

plug into the hole with a bolt and jam nut. Once the plug is fully seated, remove the jam nut and bolt. 3) The third method uses a patented thread repair kit like Heli-Coil or Slimsert. These easy-to-use kits are designed to repair damaged threads in straightthrough holes and blind holes. Both are available as kits which can handle a variety of sizes and thread patterns. Drill the hole, then tap it with the special included tap. Install the Heli-Coil and the hole is back to its original diameter and thread pitch. Regardless of which method you use, be sure to proceed calmly and carefully. A little impatience or carelessness during one of these relatively simple procedures can ruin your whole day’s work and cost you a bundle if you wreck an expensive part.

Working facilities Not to be overlooked when discussing tools is the workshop. If anything more than routine maintenance is to be carried out, some sort of suitable work area is essential.

It is understood, and appreciated, that many home mechanics do not have a good workshop or garage available, and end up removing an engine or doing major repairs outside. It is recommended, however, that the overhaul or repair be completed under the cover of a roof. A clean, flat workbench or table of comfortable working height is an absolute necessity. The workbench should be equipped with a vise that has a jaw opening of at least four inches. As mentioned previously, some clean, dry storage space is also required for tools, as well as the lubricants, fluids, cleaning solvents, etc. which soon become necessary. Sometimes waste oil and fluids, drained from the engine or cooling system during normal maintenance or repairs, present a disposal problem. To avoid pouring them on the ground or into a sewage system, pour the used fluids into large containers, seal them with caps and take them to an authorized disposal site or recycling center. Plastic jugs, such as old antifreeze containers, are ideal for this purpose. Always keep a supply of old newspapers and clean rags available. Old towels are

aged. When this happens, you’ve got three

excellent for mopping up spills. Many mechanics use rolls of paper towels for most work because they are readily available and disposable. To help keep the area under the vehicle clean, a large cardboard box can be

choices:

cut open and flattened to protect the garage

1) Drill and tap the hole to the next suitable oversize

and install a larger diameter

bolt, screw or stud. 2) Drill and tap the hole to accept a threaded plug, then drill and tap the plug to the original screw size. You can also buy a plug already threaded to the original size. Then you simply drill a hole to

or shop floor. Whenever working over a painted surface, such as when leaning over a fender to

service something under the hood, always cover it with an old blanket or bedspread to protect the finish. Vinyl covered pads, made especially for this purpose, are available at auto parts stores.

0-13

Jacking and towing Jacking Warning: The jack supplied with the vehicle should only be used for raising the vehicle when changing a tire or placing jackstands under the frame. Never work under the vehicle or start the engine while the jack is being used as the only means of support. The vehicle must be on a level surface with the wheels blocked and the transaxle in Park. Apply the parking brake if the front of the vehicle must be raised. Make sure no one is in the vehicle as it’s being raised with the jack. Remove the jack, lug nut wrench and spare tire (if needed) from the vehicle. If a tire is being replaced, use the lug wrench to remove the wheel cover. Warning: Wheel covers may have sharp edges - be very careful not to cut yourself. Loosen the lug nuts one-half turn, but leave them in place until the tire is raised off the ground. Position the jack under the vehicle at the indicated jacking point. There’s a front and rear jacking point on each side of the vehicle (see illustration). Turn the jack handle clockwise until the tire clears the ground. Remove the lug nuts, pull the tire off and replace it with the spare. Replace the lug nuts with the beveled edges facing in and tighten them snugly. Don’t attempt to tighten them completely until the vehicle is lowered or it could slip off the jack. Turn the jack handle counterclockwise to lower the vehicle. Remove the jack and

The head of the jack should engage securely on the rocker panel flange at either the front or

rear of the vehicle

tighten the lug nuts in a criss-cross pattern. If possible, tighten the nuts with a torque wrench (see Chapter 1 for the torque figures). If you don’t have access to a torque wrench, have the nuts checked by a service station or repair shop as soon as possible. Stow the tire, jack and wrench and unblock the wheels.

Towing As a general rule, these vehicles should

be towed with the front (drive) wheels off the ground. The vehicle may be towed with the rear end raised and the front wheels on the ground for distances up to 500 miles provided speed does not exceed 55 mph. These vehicles should not be towed with all four

wheels on the ground. Be sure to release the parking brake. If the vehicle is being towed with the front wheels on the ground, place the transaxle in

Neutral. Also, the ignition key must be in the ACC position, since the steering lock mechanism isn’t strong enough to hold the front wheels straight while towing. Equipment specifically designed for towing should be used. It must be attached to the main structural members of the vehicle, not the bumpers or brackets. Safety is a major consideration when towing and all applicable state and local laws must be obeyed. A safety chain must be used at all times. Remember that power steering and brakes won’t work with the engine off.

Booster battery (jump) starting Observe these precautions when using a booster battery to start

Booster battery

Dead battery

a vehicle:

a) Before connecting the booster battery, make sure the ignition switch is in the Off position.

b) Turn off the lights, heater and other electrical loads. c) Your eyes should be shielded. Safety goggles are a good idea.

d) Make sure the booster battery is the same voltage as the dead one in the vehicle.

e) The two vehicles MUST NOT TOUCH each other! f) Make sure the transaxle is in Neutral (manual) or Park (automatic). g) If the booster battery is not a maintenance-free type, remove the vent caps and lay a cloth over the vent holes.

OOO0000

Connect the red jumper cable to the positive (+) terminals of each battery (see illustration).

Connect one end of the black jumper cable to the negative (-) terminal of the booster battery. The other end of this cable should be connected to a good ground on the vehicle to be started, such as a bolt or bracket on the body. Start the engine using the booster battery, then, with the engine running at idle speed, disconnect the jumper cables in the reverse order of connection.

Sot

Make the booster battery cable connections in the numerical

order shown (note that the negative cable of the booster battery

is NOT attached to the negative terminal of the dead battery)

0-14

Automotive chemicals and lubricants A number of automotive chemicals and lubricants are available for use during vehicle maintenance and repair. They include a wide variety of products ranging from cleaning solvents and degreasers to lubricants and protective sprays for rubber, plastic and vinyl.

Cleaners Carburetor cleaner and choke cleaner is a strong solvent for gum, varnish and carbon. Most carburetor cleaners leave a dry-

type lubricant film which will not harden or gum up. Because of this film it is not recommended for use on electrical components. Brake system cleaner is used

to

remove grease and brake fluid from the brake system, where clean surfaces are absolutely necessary. It leaves no residue and often eliminates brake squeal caused by contaminants. Electrical cleaner removes oxidation, corrosion and carbon deposits from electrical contacts, restoring full current flow. It can also be used to clean spark plugs, carburetor jets, voltage regulators and other parts where an oil-free surface is desired. Demoisturants remove water and moisture from electrical components such as alternators, voltage regulators, electrical connectors and fuse blocks. They are non-conductive, non-corrosive and non-flammable. Degreasers are heavy-duty solvents used to remove grease from the outside of the engine and from chassis components. They can be sprayed or brushed on and, depending on the type, are rinsed off either with water or solvent.

Lubricants Motor oil is the lubricant formulated for use in engines. It normally contains a wide variety of additives to prevent corrosion and reduce foaming and wear. Motor oil comes in various weights (viscosity ratings) from 5 to 80. The recommended weight of the oil depends on the season, temperature and the demands

on the engine. Light oil is used in cold climates and under light load conditions. Heavy oil is used in hot climates and where high loads are encountered. Multi-viscosity oils are designed to have characteristics of both light and heavy oils and are available in a number of weights from 5W-20 to 20W-50.

Gear oil is designed to be used in differentials, manual transmissions and other areas where high-temperature lubrication is required. Chassis and wheel bearing grease is a heavy grease used where increased loads and friction are encountered,

such

as for

wheel bearings, balljoints, tie-rod ends and universal joints. High-temperature wheel bearing grease is designed to withstand the extreme

galling, cold welding, rust and corrosion

in

temperatures encountered by wheel bearings in disc brake equipped vehicles. It usually contains molybdenum disulfide (moly), which is a dry-type lubricant. White grease is a heavy grease for metal-to-metal applications where water is a problem. White grease stays soft under both low and high temperatures (usually from -100 to +190-degrees F), and will not wash off or dilute in the presence of water. Assembly lube is a special extreme pressure lubricant, usually containing moly, used to lubricate high-load parts (such as main and rod bearings and cam lobes) for initial start-up of a new engine. The assembly lube lubricates the parts without being squeezed out or washed away until the engine oiling system begins to function. Silicone lubricants are used to protect rubber, plastic, vinyl and nylon parts. Graphite lubricants are used where oils cannot be used due to contamination problems, such as in locks. The dry graphite will lubricate metal parts while remaining uncontaminated by dirt, water, oil or acids. It is electrically conductive and will not foul electrical contacts in locks such as the ignition switch. Moly penetrants loosen and lubricate

fasteners. High-temperature anti-seize, usually made with copper and graphite lubricants, is used for exhaust system and exhaust manifold bolts. Anaerobic locking compounds are used to keep fasteners from vibrating or working loose and cure only after installation, in the absence of air. Medium strength locking compound is used for small nuts, bolts and screws that may be removed later. Highstrength locking compound is for large nuts, bolts and studs which aren’t removed on a regular basis. Oil additives range from viscosity index improvers to chemical treatments that claim to reduce internal engine friction. It should be noted that most oil manufacturers caution against using additives with their oils. Gas additives perform several functions, depending on their chemical makeup. They usually contain solvents that help dissolve gum and varnish that build up on carburetor, fuel injection and intake parts. They also serve to break down carbon deposits that form on the inside surfaces of the combustion chambers. Some additives contain upper cylinder lubricants for valves and pis-

frozen, rusted and corroded

ton rings, and others contain chemicals to

fasteners and

prevent future rusting or freezing. Heat-sink grease is a special electrically non-conductive grease that is used for mounting electronic ignition modules where it is essential that heat is transferred away from the module.

Sealants RTV sealant is one of the most widely used gasket compounds. Made from silicone, RTV is air curing, it seals, bonds, waterproofs, fills surface irregularities,

remains flexible, doesn’t shrink, is relatively easy to remove, and is used tary sealer with almost all temperature gaskets. Anaerobic sealant is that it can be used either to

as a supplemenlow and medium

much like RTV in seal gaskets or to form gaskets by itself. It remains flexible, is solvent resistant and fills surface imperfections. The difference between an anaerobic sealant and an RTV-type sealant is in the cur-

ing. RTV cures when exposed to air, while an anaerobic sealant cures only in the absence

of air. This means that an anaerobic sealant cures only after the assembly of parts, seal-

ing them together. Thread and pipe sealant is used for sealing hydraulic and pneumatic fittings and vacuum lines. It is usually made from a Teflon compound, and comes in a spray, a paint-on liquid and as a wrap-around tape.

Chemicals Anti-seize compound prevents seizing,

remove condensation from the gas tank.

Miscellaneous Brake fluid is specially formulated hydraulic fluid that can withstand the heat and pressure encountered in brake systems. Care must be taken so this fluid does not come in contact with painted surfaces or plastics. An opened container should always be resealed to prevent contamination by water or dirt. Weatherstrip adhesive is used to bond weatherstripping around doors, windows and trunk lids. It is sometimes used to attach trim pieces.

Undercoating is a petroleum-based, tar-like substance that is designed to protect metal surfaces on the underside of the vehicle from corrosion. It also acts as a sounddeadening agent by insulating the bottom of the vehicle. Waxes and polishes are used to help

protect painted and plated surfaces from the weather. Different types of paint may require

the use of different types of wax and polish. Some polishes utilize a chemical or abrasive cleaner to help remove the top layer of oxidized (dull) paint on older vehicles. In recent

years many non-wax polishes that contain a wide variety of chemicals such as polymers and silicones have been introduced. These non-wax polishes are usually easier to apply and last longer than conventional waxes and polishes.

0-15

Conversion

factors

Length (distance) Inches (in) Feet (ft) Miles

X X X

25.4 0.305 1.609

=Millimetres (mm) = Metres (m) = Kilometres (km)

X X Xen

0.0394 3.281 O62

=Inches (in) = Feet (ft) = Miles

X xX. X X X X X

16.387 0.568 1.137 1.201

= Cubic centimetres (cc; cm*) = Litres (I) = Litres (I) =US quarts (US qt)

0.061 1.76 0.88 0.833

= Litres (I) = Litres (I) =US gallons (US gal)

X

0.946 4.546 1.201 3.785

xX x x X X x X

= Litres (I)

X

1.057 0.22 0.833 0.264

X X

28.35 0.454

=Grams (g) = Kilograms (kg)

X X

0.035 2.205

=Ounces (oz) =Pounds (Ib)

X X X

0.278 4.448 0.1

=Newtons (N) =Newtons (N) =Kilograms-force (kgf; kg)

Xx X Xx

3.6 0.225 9.81

= Ounces-force (ozf; oz) = Pounds-force (Ibf; Ib) = Newtons (N)

Pounds-force per square inch

xX

0.070

= Kilograms-force per square

X

14.223

= Pounds-force per square inch

Pounds-force

X

0.068

=Atmospheres

X

14.696

= Pounds-force per square inch

xX

0.069

= Bars

x

14.5

= Pounds-force per square inch

X

6.895

= Kilopascals (kPa)

X

0.145

Volume (capacity) Cubic inches (cu in; in’) Imperial pints (Imp pt) Imperial quarts (Imp qt) Imperial quarts (Imp qt)

US quarts (US qt) Imperial gallons (Imp gal) Imperial gallons (Imp gal) US gallons (US gal)

= Cubic inches (cu in; in’) = Imperial pints (Imp pt) = Imperial quarts (Imp qt) =Imperial quarts (Imp qt) =US quarts (US qt) = Imperial gallons (Imp gal) =Imperial gallons (Imp gal)

=US gallons (US gal)

Mass (weight) Ounces (02) Pounds (Ib)

Force Ounces-force (ozf; 0z) Pounds-force (Ibf; Ib) Newtons (N)

Pressure (psi; Ibf/in?; Ib/in?)

per square inch

centimetre (kgf/cm?; kg/cm?) (atm)

(psi; Ibf/in?; Ib/in?)

(psi; Ibf/in?; Ib/in?) Pounds-force

(psi; Ibf/in?; Ib/in?)

per square inch.

(psi; Ibf/in?; Ib/in?) Pounds-force

(psi; Ibf/in?; Ib/in?)

per square inch

=Pounds-force

(psi; Ibf/in?; Ib/in?)

per square inch

(psi; Ibf/in?: Ib/in?)

Kilopascals (kPa)

X

0.01

=Kilograms-force

per square

x

98.1

X

1.152

X

0.868

X

0.113

= Kilograms-force centimetre (kgf cm; kg cm) =Newton metres (Nm)

Xx

8.85

= Pounds-force inches (Ibf in; Ib in) = Pounds-force inches

X

0.083

= Pounds-force feet (Ibf ft; Ib ft)

X

a2

(Ibf in; Ib in) = Pounds-force inches

X

0.138

= Kilograms-force metres

X

7.233

= Pounds-force feet (Ibf ft; Ib ft)

Pounds-force feet (Ibf ft; Ib ft)

X

1.356

=Newton

X

0.738

= Pounds-force feet (Ibf ft; Ib ft)

Newton

X

0.102

= Kilograms-force metres

X

9.804

=Newton

centimetre (kgf/cm?; kg/cm’)

= Kilopascals (kPa)

Torque (moment of force) Pounds-force inches (Ibf in; Ib in) Pounds-force inches

(Ibf in; Ib in) Pounds-force inches (Ibf in; Ib in) Pounds-force feet (lbf ft; Ib ft)

(Ibf in; Ib in)

(kgf m; kg m) metres (Nm)

metres (Nm)

metres (Nm)

(kgf m; kg m)

Vacuum Inches mercury (in. Hg) inches mercury (in. Hg)

X X

3.377 25.4

= Kilopascals (kPa) =Millimeters mercury (mm Hg)

X X

0.2961 0.0394

=Inches mercury =Inches mercury

X

745.7

=Watts (W)

X

0.0013

= Horsepower (hp)

X

1.609

= Kilometres per hour (km/hr; kph) X

0.621

= Miles per hour (miles/hr; mph)

X X

0.354 0.425

= Kilometres per litre (km/I) = Kilometres per litre (km/I)

2.825 2.352

=Miles per gallon, Imperial (mpg) =Miles per gallon, US (mpg)

Power Horsepower (hp)

Velocity (speed) Miles per hour (miles/hr; mph)

Fuel consumption* Miles per gallon, Imperial (mpg) Miles per gallon, US (mpg)

Temperature

Degrees Fahrenheit

=

(°C x 1.8) + 32

X X

Degrees Celsius (Degrees Centigrade; °C)

*/t is common practice to convert from miles per gallon (mpg) to litres/100 kilometres (I/100km), where mpg (Imperial) x I/100 km = 282 and mpg (US) x 1/100 km = 235

= (°F - 32) x 0.56

0-16

Safety first! Regardless of how enthusiastic you may be about getting on with the job at hand, take the time to ensure that your safety is not jeopardized. A moment’s lack of attention can result in an accident, as can failure to observe certain simple safety precautions.

The possibility of an accident will always exist, and the following points should not be considered a comprehensive list of all dan-

gers. Rather, they are intended to make you aware of the risks and to encourage a safety conscious approach to all work you carry out on your vehicle.

Essential DOs and DON’Ts DON'T rely on a jack when working under the vehicle. Always use approved jackstands to support the weight of the vehicle and place them under the recommended lift or support points. DON’T attempt to loosen extremely tight fasteners (i.e. wheel lug nuts) while the vehicle is on a jack - it may fall. DON’T start the engine without first making sure that the transmission is in Neutral (or Park where applicable) and the parking brake is set. DON’T remove the radiator cap from a hot cooling system - let it cool or cover it with a cloth and release the pressure gradually. DON’T attempt to drain the engine oil until you are sure it has cooled to the point that it will not burn you. DON’T touch any part of the engine or exhaust system until it has cooled sufficiently to avoid burns. DON’T siphon toxic liquids such as gasoline, antifreeze and brake fluid by mouth, or allow

them to remain on your skin. DON’T inhale brake lining dust - it is potentially hazardous (see Asbestos below). DON’T allow spilled oil or grease to remain on the floor - wipe it up before someone slips on it.

DON’T use loose fitting wrenches or other tools which may slip and cause injury.

DON’T push on wrenches when loosening or tightening nuts or bolts. Always try to pull the wrench toward you. If the situation calls for pushing the wrench away, push with an open hand to avoid scraped knuckles if the wrench should slip. DON’T attempt to lift a heavy component alone - get someone to help you. DON’T rush or take unsafe shortcuts to finish a job.

DON’T allow children or animals in or around the vehicle while you are working on it. DO wear eye protection when using power tools such as a drill, sander, bench grinder,

etc. and when working under a vehicle. DO keep loose clothing and long hair well out of the way of moving parts. DO make sure that any hoist used has a safe working load rating adequate for the job. DO get someone to check on you periodically when working alone on a vehicle. DO carry out work in a logical sequence and make sure that everything is correctly assembled and tightened. DO keep chemicals and fluids tightly capped and out of the reach of children and pets.

DO remember that your vehicle’s safety affects that of yourself and others. If in doubt on any point, get professional advice.

Asbestos Certain friction, insulating, sealing, and other products - such as brake linings, brake bands, clutch linings, torque converters, gaskets, etc. - may contain asbestos. Extreme care must be taken to avoid inhalation of dust from such products, since it is hazardous to health. If in doubt, assume that they do contain asbestos.

Fire Remember at all times that gasoline is highly flammable. Never smoke or have any kind of open flame around when working on a vehicle. But the risk does not end there. A spark caused by an electrical short circuit, by two metal surfaces contacting each other, or

even by static electricity built up in your body under certain conditions, can ignite gasoline vapors, which in a confined space are highly explosive. Do not, under any circumstances, use gasoline for cleaning parts. Use an approved safety solvent. Always disconnect the battery ground (-) cable at the battery before working on any part of the fuel system or electrical system. Never risk spilling fuel on a hot engine or exhaust component. It is strongly recommended that a fire extinguisher suitable for use on fuel and electrical fires be kept handy in the garage or workshop at all times. Never try to extinguish a fuel or electrical fire with water.

Fumes Certain fumes are highly toxic and can quickly cause unconsciousness and even death if inhaled to any extent. Gasoline vapor falls into this category, as do the vapors from

some cleaning solvents. Any draining or pouring of such volatile fluids should be done in a well ventilated area. When using cleaning fluids and solvents, read the instructions on the container

carefully. Never use materials from unmarked containers. Never run the engine in an enclosed space, such as a garage. Exhaust fumes contain carbon monoxide, which is extremely poisonous. If you need to run the engine, always do so in the open air, or at least have the rear of the vehicle outside the work area. If you are fortunate enough to have the use of an inspection pit, never drain or pour gasoline and never run the engine while the vehicle is over the pit. The fumes, being heavier than air, will concentrate in the pit with possibly lethal results.

The battery Never create a spark or allow a bare light bulb near a battery. They normally give off a certain amount of hydrogen gas, which is highly explosive. Always disconnect the battery ground (-) cable at the battery before working on the fuel or electrical systems. If possible, loosen the filler caps or cover when charging the battery from an external source (this does not apply to sealed or maintenance-free batteries). Do not charge at an excessive rate or the battery may burst. Take care when adding water to a non maintenance-free battery and when carrying a battery. The electrolyte, even when diluted, is very corrosive and should not be allowed to contact clothing or skin. Always wear eye protection when cleaning the battery to prevent the caustic deposits from entering your eyes.

Household current When inspection

using an electric power tool, light, etc., which operates on

household current, always make sure that the tool is correctly connected to its plug and that, where necessary, it is properly grounded. Do not use such items in damp conditions and, again, do not create a spark or apply excessive heat in the vicinity of fuel or fuel vapor.

Secondary ignition system voltage A severe electric shock can result from touching certain parts of the ignition system

(such as the spark plug wires) when the engine is running or being cranked, particularly if components are damp or the insulation

is defective. In the case of an electronic ignition system, the secondary system voltage is much higher and could prove fatal.

0-17

Troubleshooting Contents Symptom

Section

.

Engine and performance Engine backfires...... Becse ced cut eeeurk Sobeeuvaeicptee soseeeveeeensenennseennneetnnecntnnecs

15

Engine diesels (continues to run) after switching Off...

18

ENiGine mare torstentawiGMtCOldlsescss..scstsesccecesece-sovevs-vye seescievceeesses

Engine hard to start WHEN NOt........sceseecseeseess teense eessessseenseten

EEMGNINGHACKSIOOW elereceseir ce sxewuee we ececeet sh tteeucxesceseesteeecesvecasepcesees Engine lopes while ldlingvormiclestentaticallVeteccsccvs-tecsscereesere seers ENGinesmsSesiawidle SPO i svete sere aetect acs cessetseraserevavererss asics

3

A

14 8 9

Symptom

Section

General shift Mechanism ProbleM ...........c.0ccescssecscssssascsesceseceaveees

32

Transaxle fluid brown or has a burned Smell .........:.eeceseeeeeeeereeees Transaxle slips, shifts roughly, is noisy or has no drive

31

in forwardiior reverse Gears ..5.naccmt-tctencpccaeteee eee

35

pressed. to the OOM c..c.s.crescc-tor ansetseree erp ee ee

33

Transaxle will not downshift with accelerator pedal

Driveaxles Clicking noise in tums

49

Engine : Engine ENIGIMG@US Engine

rotatesibutwilltmOt Start y..cs-.-.csscessesssct cusaseccesveavswssattereect: , : ‘ runs with oil pressure light ON ..........::cccccssesssceeseessseeeeeeeeees tall Seaeeserese ae srccect-e_.cacceivat ieee suecucasnvnccdectumexewstenmeeccteecs starts) DULSTOPS IIMIMCGIAlClYosccecececcecessnccuvsecarseseceeeedexcckerss

2 17 13 6

Engine stumbles on acCeloration ...cceccsesccberecceevessencseistveaseseanasedens

11

Brake pedal feels spongy when depressed ..........seesseceseeeeestenes

Engine surges while holding accelerator Steady .....csscssssesseseeseeses

42

Brake pedal travels to the floor with little resistance ..............0.008

47

Engine will not rotate when attempting to Start .........ccseseeeeeeeeees

1

Brake roughness or chatter (pedal pulsates) ..........sessesesesteeeeens

4

(Oy [Heute fel/Sui pre'-1aksigre gs

7

Dragging Diakes 5.207. iixvccascees suedessoransastereeaseeteceh teas te ee eee

44

Excessive brake pedal traveltimerescasereeesssrceseete teense

43

Excessive pedal effort required to Stop VehiICIE «0... eeseeeeceeseseees

42

Grabbing, oriUneven braking Acton terrcces-cceseceeensseestaeteeeese reeeeeeeneee Noise (high-pitched squeal when the brakes are applied).............

45 40

Parking brake does not AOI ....ssssseees pahales atedenzesatioanaest tecereeane ereeceme

48 as

Seer

sae

eee

I

Oe

ee

Pinging or knocking engine sounds during

BCc Cle ato Oe UPIillmeets te Mt on aoc cen hpedietcrsarsaaveonanss

16

Starter motor noisy or excessively rough in engagement.............-

5

Engine electrical system

Clicking noise in Sess

turns.............. sooeeeeneaeennnnseen soeesnaeenseeeniecenenenseeness

36

Engine misses throughout driving speed fanGe .escecsccccccssecssssseee

ols uc Becselguie acl COBSUING a sie

Rea

Shudder or vibration during acceleration.............ccccccccceesessceseeeeees

rl

38

Brakes

46

Battonya WillimOlalOclaiC MANGE weccenserecesattneccncesntsar steertesescs-snernsaness Sa ae light fails to come on when key

19 .

Vehicle pulls 10 obs See TON Died es Suspension and steering systems

Voltage warning light fails tO GO OUt........cccescscscsecsetseereeseeneeeeeess

20

Abnormal or excessive tire Wear... secseeeeeessieesserstessseersneeeny

50

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22

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Chassis electrical system

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Chassis electrical system

Chapter 12

12-46

HOT

IN RUN,

TEST. OR HOT AT ALL TIMES HOT AT ALL TIMES IE i ae een oe Ee ee ME anse,eePe pip aati gr= An RD EREBATTERY BODY — 7 seats FUSE 2 Ncircuir 23 |)1 BREAKER ren Ue 30 ee a cae cope(ooe some em me] ann soma ‘eat peo SI Se ee ee os ee ea ees ens ame eee ee ee eee cas ee ee (he, PNK W/_ AUTOMATIC ORG/BLK ORG isWhon Locks. ONLY

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Chassis electrical system

Chapter 12

12-54

HOT IN OFF OR RUN

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Instrument panel gauges and warning lights - 1990 and later Oldsmobile Toronado

12

Chassis electrical system

Chapter 12

12-56

Eh Tcl

jBLOCK

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|SUPPLY

|

OR GRY

|

I

ELECTRONIC |) contro. |

a oe

LEVEL

GRY/WHT

|

!

I

\

IT Woicator OK GRN/WHT

|

I

jASSE

ay

| ON/OFF

Wi edits u

|

|

!

CONTROL

CHASE BRAKE PUT tye

I

TLEFT

| SWITCH

WHT

apse thW,

cRUISE

1 Gry/eux

INPUT |

CRUISE ON/OFF INPUT

cruise

INTERIOR RELAY | CENTER| I

FUEL TANK UNIT

ee

r-------

PNK/

oe

= rein aT; I I | REGULATO

t

|

{

NCA

BLK/WHT

PNK/BLK eee ae 1. PNK/BLK IGNITION INPUT |}—————=—- @—

Go |

J

(ECM)

Instrument panel gauges and warning lights - 1989 and earlier Buick Riviera

Me ne

Rl

Chapter 12 HOT IN RUN, BULS TEST, OR START

rT

-------H

| !

'SO-IGN FUSE 1

ie

ee

HOT AT ALL TIMES HOT IN RUN SO St (1991)

HOT AT ALL TIMES ae FUSE 1990) aA

BCM/IPC

104 Sere

E

12-57

Chassis electrical system

aes ee

es

oe

FUSE 5 10A

Bae ORG

PNK/BLK

Pence

FUSE 5 | SAY

PNK/BLK

— = 7ICENTRAL |POWER

BATTERY PWR]

PNK/BLK

(SS Ba |

earned, PNK/BLK IGNITION INPUT Leper

[TRANSIENT ]!SUPPLY

I] 7v output | |SUPPENSION|I

BLK/WHT

PNK/BLK

ae

NCA

nr

I |

I

FUEL LEVEL INPUT {—_____

|

| | I

! I

! I

| |

t |

| |

I

|

y

DATA LINE petal

1

|

!

| |

OK GRN “contro. bP

anes

PASS KEY DECODER MODULE

I

y

!

|

aR

I

y

I

|

I

|

See,

BRN

wwoicaror' RD

RESERVE MODULE RED/BLK

! TAN/REO

HYDRAULIC

PRESSURE

!

SWITCH

| WASHER FLUID cevet !

BLK/WHT a

|

|

SWITCH INPUT|

|

BLK/WHT

i ee,

t

|

OIL LEVEL SENSOR

i | |

|

! PARK BRAKE

RED OR GRY

BLK/ORG PARK BRAKE SWITCH

!

crouno !

|

I VEHICLE

[Es eS BODY

SPEED

INPUTj

a eesti COMPUTER

MODULE

[RELAY 4 MODULATOR

BLK /WHT

A

--

GROUND | wasbacl

| |

I crouno|

Eee

A

Se

ue

8 a

CENTRAL POWER

LEV

BLK/WHT

|

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dh

oy

pee

ry - ¥ iso

FUNCTION | ben nea]

poaae—


loutPuT

VEHICLE

VEHICLE sPeeo !eee {

| OR BRN

iso {GROUND

Noa

BLK/WHT

FLUID LEVEL SWITCH

|i al

TF |

TD)

=O

| DK GRN/WHT

|

ef

! BLK/PNK

|

BLK /WHT

:

|

I OIL PRESSURE SENSOR SWITCH

! |

|

rf

VALVE izBRAKE

!

bei LINE

OIL PRESSURE INPUT [ye

I |

GROUND |

RSS

I | I \

Wit icea

I

|

1/3| |

|

!

| 2 S

dA

DATA oe |

|

I

[ — — — 1GENERATOR

INPUT ad

{

j| Canine MODULE

SUPPLY

ENERATOR FEEDBACK nt

!I | \ \

BELCTRONG ANTI-LOCK

|

|

IL

GENERATOR FIELD | cry DUTY CYCLE INPUT| |

|

{ |

:

i WH

INPUT Vepemar ———_(/ | CONTROL INDICATOR

OSENSOR

|

|

| INFLATABLE

| |

SWITCH INPUT|

|

ie Fos

| ANTI-LocK 1. WHT

INSTRUMENT arn BLK/WHT

LOW BRAKE FLUID || TAN/WHT

|

| waki | UP

LEVEL SWITCH

|

|

SERVICE ENGINE |, 5RN/WHT

SOON INDICATOR|

WASHER FLUID

|

|

BAT| BatI

| INDICATOR

| y

|

DIGITAL

j CLUSTER |

{| RESTRAINT

tow!

ach C/ENERt 7 DIAGNOSTIC/ENERGY

| BRAKE PRESSURE INPUT

on s| 7V¥ WAKE uP]!

lec

WAKE U!a

|

|

|

1 bk atu/wHt

/ ORG

\

|

|

|

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ener IGNITION nur INDICATOR gar! '

Len open ke

I !

|

FUEL TANK UNIT

a INDICATOR |

Sa

I

r

I

J

POWERTRAIN CONTROL MODULE (PCM) OR ENGINE CONTROL MODULE (ECM)

Instrument panel gauges and warning lights - 1990 and later Buick Riviera

12

Chapter 12

12-58

Chassis electrical system

ce

HOT

caer

pe

a

IN oo _OR_RUN

nm)

mT

ona eR

Pe

IN

wiper | bby R

SWITCH | SWITCH

I

MISTeP

a eh

SP a hy Okfee

ee ieeee

1

HI LO

| OFF

l

OFF TPULSE

I

\

|

|

|

|

a

|

WASHER SWITCH

Ao

| |

| |

eae

| |

ies

De

ee

|

ee

en

ee

eee

a

PPL

YEL YELL

MOTOR CAPACITOR

PPL

YEL WINDSHIELD

COVER

WIPER

Le

MOTOR ASSEMBLY

PARK SWITCH

BREAKER CAPACITOR

CAPACITOR

OK BLU OR LT BLU

= WASHER MOTOR

Windshield wiper and washer system - Buick Riviera/Oldsmobile Toronado

tO

oe

ee

ee

hlLlUe

Chapter 12

12-59

Chassis electrical system

___ HOT IN_RUN | (TORONADO) (riviera) Fuse

|

eS

ee

I

~~ ELECTRONIC COMFORT DATA unel 2A ICONTROL HEATER

.

i 1s ee

ae

|

1 P/S eel

H

| ENGINE CONTROL

|

AR

j | |

A/c PRESSURE on

|

SENSOR

tee

!

SENSOR INPUT|

!

|

'

|

! \

i

DK BLU

TEMPERATURE SENSOR aaa, }

ur BLu/

TEMPERATURE ope

OUTSIDE TEMP:Tae

/

Bo NCA

ea nate

BRN

OUTSIDE

GRAPHICS CONTROL

CENTER

(RIVIERA)

RSP

SSS es

is

AIR

UNOERHOOD CENTER

rere

DK BLU]

DK BLU

OK GRN OR BRN]

m7 catHove

|

|

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a see

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OR BRN

NCA

CONTEC

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A/c

a/c

HOT AT ALL TIMES

CLUTCH

DIODE

FUSIBLE

COMPREsSOR| | |COMPRESSOR he

FUsiBLE A

(TORONADO) fi (RIVIERA)

| SROUN A! PERO

ng

LE

;

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|

t

|

{

J

WHT OR OK BLU

I

|

bot

| RAY

TUBE CONTROLLER L — -| (riviera)

TEMPERATURE SENSOR

|

NCA

|

ee

ee

eee OK GRN OR BRN 2515

anal

=

COMPRESSOR |

!

PNK/BLK

=

a/c

|

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tie

|

WHT

eel

SUNLOAD SENSOR

i

BRN

TORONADO

|

¢eBLK/PNK§

ANCA

AY

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i j!

SRN

SWITCH

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yp VEL SUNLOAD! Sy SENSOR INPUT| DK GRN/ :

|

RED OR

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TAN

AIR MIX VALVE

POSITION SENSOR a

I

DATA

NE

pee

Penny Courutf

LT BLU

ee

pe

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ae

rh

VOLTAGE

7

LOA ELC ae | Sg BRN OR pa BRN/YEL

7180

|

GROUND

I

peace,

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ara

eux

HOT IN RUN __ CT coor 1UNOERHOOD 1 4 FAN

|

(S)E

aie S75]

CENTER

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PNK/BLK er

+

0

BATTERY

TORONADO

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GROUND

Se a

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-—e

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np OWER

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:

OUTPUT Seoune HEATER AND A/C PROGRAMMER FUSE

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RO FUSIBLE (TORONADO)

CONTROL INPUT

etal (EN

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a

cote “Peed.

LINE

videhare

DATA uNel BODY COMPUTER MODULE (BCM)

(ae SN

HOT INRUN ToROKAO) = (TORON

pSOWER

VALVE SENSOR DATA

PPL/WHT

Ww, BLOWER CO N bat

|

PRESSURE

SWITCH

h

See

NCA

a/c ak

A/C LOW SIDE

| HIGH Serge

;

LT BLU/OR

PRESSURE

l

ee N TER

CoS

POWER STEERING

_GRY_OR_GRY/REO

ce

| &Fuses

m4 or]

uvoeavo

ie A/C COMPRESSOR IReLA REY

ped blog:

A/C PANEL

! MODULE (ECM) WHT

| LOW TEMPERATURE],

HOT AT ALL TIMES

Fuse 48 rise 19 reget

BLOWER MOTOR

IFUSE Iptock ey|

oux| £

HOT AT ALL TIMES

= FUSIBLE Jj FUSIBLE (TORONADO)

(RIVIERA)

arn pee,

|

RIVIERA RED

ELECTRONIC T 7" COMFORT| DATA

Phan mf

CONTROL ;_ _ LINE,

HEATER AND A/C PANEL

r-------

DATA | | DATA | DATA | ! COOLANT FAN !SPEED CONTROL I !

| |

|

|

| ! i | | ! |

i Ralberce
SUK 4 NCA NCA_/, BLK/PNK

I

HOT AT ALL TIMES— uNoeRoo0 {ea A/cTCHCOMPRESSOR IyNOE fee

20

BLK

OTS

HOT AT ALL TIMES

lruse IeLock

Aytrgr

| os

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(RIVIERA)

(TORONADO)

ry

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RED

a

UNDERHOOD!_

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RELAY

3

D)

:

p-------7 DATA LINE

| t

gene

a

COOLANT VENTER

CENTER!

aes

BLK/RED OR BLK/PNK

t

!

al

| |

j VEHICLE SPEED OUT,

! CooLaNT FAN Low!

ISPEED CONTROL OUT| | COOLANT FAN HIGH|

{SPEED CONTROL OUT | | TPS INPUT! }

sv REF} |

!

OK BLU

a THRO POSITION SENSOR (TPS)

aoe

inl

Cesc

as

vss input!

PPL

ers nett

He

$reg re

_ GROUND)all

eee oe ENGINE CONTROL MODULE

TEMPERATURE RereH

NSOR

PUSHER

COOLANT FAN

ou] :

(ECM)

Heating and air conditioning system (including engine cooling fan system) - 1990 Buick Riviera/Oldsmobile Toronado

12

12-62

Chapter 12

Chassis electrical system ROTa hy OR BUMSTART eee HOT IN RUN _TEST, TORONADO RIVIERA) a/c

i¢ Camb mate Aste at

|

A

DATA uve!

| DATA UNE} — A | I afc Low! )_WHT | PRESSURE INPUT| | LOW TEMPERATURE) SENSOR INPUT,1st \|

I

|

I

BLK ___ 4)NCA (fore)

SUNLOAD]

SENSOR INPUT)

OK GRN..

NCA

NCA

GRUsZENK

SENSOR INPUT| > |

t

| GROUND!

Sane

if

i

NCA

WHT

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CLUTCH Veo

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p10)

FUSIBLE [iMFUSIBLE

nea]

BLKI

}

WHT OR DK BLU

4

I

I ! |

WHT

OR

RED

DK BLU

BATTERY ]POWER

INPUT |MOOULE

|

| LT BLU AIR MIX VALVE}1) I POSITION SENSOR LaF | DATA LINE Dome an PPL/WHT | BLOWER Corio ee | | ely | | VEHICLE SPEED wl | |

Vo

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om

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DK GRN/YEL enn! POWERTRAIN foo, ConTROL I CONTROL ICOMPRESSOR

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I

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|

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ORG

A/c A OPS

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|

|

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BLK/PNK 6

|

Toa, | i{CENTER

i

|

RIVIERA

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SUNLOAD SENSOR

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PRESSURE SWITCH

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HOT AT ALL TIMES

HOT IN RUN, BULB iT, OR START is BSBb 2

FUSIBLE LINK K

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AIR SWITCH

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12-65

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EXHUST GAS RECIRCULATION (EGR) SOLENOID

y——OK_GRN/YEL

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EARLY

FUEL EVAP

FUSE

3A

FUEL

2 INPUT

INJ NO,

MAT SENSOR

SENSOR SENSOR

INPUT

~~ "1| CALIBRATION TIMER _ — J MODULE

INJECTOR IN hee 2

FUEL INJECTOR NO. 1

2

OK BLU OR BLU OK GRN

OR GRN

TAN pn

INPUT

GROUND

wi OK BLU/WHT

¢

PNK/BLK

IGNITION 1 INPUT

|

J

BLK LT GRN/BLK N/BL /|

TIMER INPUT

FUEL INJ NO.

SSS RELAY 2 IND 1CENTER

: HEATER

CONTROL

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MAP

UT BLu/ YEL DK GRN YEL

\

BLK/PNK

5) BLKLK/P/PNK

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MANIFOLD AIR TEMPERATURE (MAT) SENSOR

| LT GRN BLK/PNK

CRUISE/VISCOUS CONVERTER CLUTCH BRAKE SWITCH

ration GRY —_——

5V REF

9

PRESSURE v(MaP)

GRY

TPS

SENSOR

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De ecenenaan es coeeeeeematenen 6

INPUT

THROTTLE Noon ttt cay eanid

BLK /WHT

TRANSMISSION TEMPERATURE

THERMISTOR

®

CONVERTER CLUTCH SOLENOID

FOURTH GEAR SWITCH

@ THIRD GEAR SWITCH

9 TRANSAXLE

OVER TEMPERATURE SWITCH

BLK/PNK OR BLK/WHT

YEL

INPUT

COOLANT

TEMPERATURE

SENSOR (CTS)

DK GRN/WHT OR LT BLU]

LT BLU OR DK GRN/WHT

TAN/BLK

TRANSAXLE TEMPERATURE

INU

ORN/BLK

|

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LO

TAN/BLK bd

TAN/BLK__-

PARK/NEUTRAL INPUT

IDLE

AUTOMATIC TRANSAXLE

VISCOUS

ne

GROUND

CTS

/

SENSOR

PEE

IDLE SPEED CONTROL (ISC)

ASSEMBLY LINE DIAGNOSTIC

UNK (ALOL) CONNECTOR

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Bn

DK GRN/WHT*OR LT BLU I THROTTLE SWITCH INPUT

a |

ep

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seen (emo

di

| GROUND

y

|

had

HT

Ce cee ase cet pes tos mae,eam cay oer Sa

ELECTRONIC

CONTROL

MODULE

(ECM)

Engine control system - 1986 and 1987 Cadillac Deville/Fleetwood (1 of 2)

12

12-66

Chapter 12

HOT IN RUN, BULB TEST OR ea

wrest OR START.

re

Chassis electrical system

~ —]RELAY

Ny

FUEL FUSE PUMP ICENTER

|

I

HOT AT ALL TIMES

HOT IN START

FUSE

“7\ CENTER RELAY

FUSE 3 a: 20A

!

ee ey PNK/BLK

eS PNK/BLK

i

! repay

(ake oil

TENGINE jolL

Fh

as ae

a

| CRANK INPUT

|

>

TCH

lca cer

areas TT) “VUINSTRUMENT

| |

Service [CLUSTER SOON ! IND

RELAY [~ CENTER |

BAT BAT | {

| \

| \ \

| ! |

| ! |

GRY/BLK__-| SERVICE SOON | IND CONTROL GRY]

DK_GRN/WHT

|I

SERVICE NOW IND CONTROL

GRY ae

I |

)

DRUGRN

¢| COOLANT TEMPERATURE j IND CONTROL

| I |

YEL__¢! SERVICE ELECTRICAL | SYSTEM CONTROL De RN

FUEL

FUEL PUMP RELAY CONTROL | |

CONNECTOR |

ASSEMBLY LINE DIAGNOSTIC LINK (ALOL) CONNECTOR

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DATAa

BCM-EMC

DATAdoer

(E

eer

ECM-—BMC

DATA

a BCM-ECM

DATA

BODY COMPUTER rer

SEC? hula

BRN Tare CRUISE

CONTROL

GRY/BLK

Re

pO

!

ALDL REQUEST ! BRAKE INPUT RESUME/ACCEL SET/COAST

SYSTEM |p————___ RY

INPUT

INPUT

cruise ENABLE INPUT

p——__2k Bu! cruise conTROL | VACCUM

ac

psig AT ALL TIMES—

nee

START

lots

| Lock ®

|

—7gnition | SWITCH

I

OFF

LT GRN

SOLENOID

_,! CRUISE CONTROL

hee | POWER SOLENOID

Se

gry

OK GRN/WHT OR LT BLU

dp _BLK/WH BLK/WHT T

TAN/

!

I | |

VEHICLE

| DISTRIBUTOR REFERENCE | PULSE INPUT

LT BLU OR OK GRN/WHT

BLK/] PPL/

sp @LK] WHT] RED] WHT + —---1-6 —4 rectronic fs Bicpice jTIMING (EST) [DISTRIBUTOR ee io, ee

PNK]

| I | \ | | |

\ | | SPEED INPUT | BUFFER GENERATOR 1 GENERATOR INPUT | | TAN/BLK VISCOUS CONVERTER | | CLUTCH CONTROL \ | LT BLU OR OK GRN/WTH | FOURTH GEAR INPUT I OK _GRN/WHT OR LT BLU THIRD GEAR INPUT I TAN | | OXYGEN SENSOR INPUT LO I | PPL I | TAN TAN ¢ TAN Farag} 28 BLK PPL }————{ | OXYGEN SENSOR INPUT Hi | ————( I OXYGEN | | SENSOR TAN/BLK I ETS BYPASS OUTPUT | | SPARK TIMING OUTPUT | | DISTRIBUTOR REFERENCE ! | GROUND VEHICLE SPEED EL caviar

TAN/BLK

\ | | | | | !

| FUEL PUMP FEEDBACK

PUMP PRIME

Engine control system - 1986 and 1987 Cadillac Deville

BUX WHT. BLK/WHT

2K

/Fleetwood ee

BLK /WHT g/t

|oun

GROUND

i L———_____ ELECTRONIC CONTROL MODULE _(ECM)4

(2 of 2)

!

| | I |

! | I | I

Chapter 12

Chassis electrical system HOT IN RUN, BULB TEST, OR START Siam (acca RELAY, |

FUSE 5

| 15A el Cg a PNK/ ie

(Ge ties Sette

|

\

re

en

AIR DIVERT SOL CONTROL

|

MAAS

Jp SK/PUK |CW)

|

|

!

AIR SWITCH

SOL CONTROL

1

\ |

{

\

pee | |

!

I

CALIBRATION TIMER : WODULE INPUT ‘ 1 I | H | | |

|

I

{ es PNK/BLK

Fuse 17 | BLOCK 15A | ees

PNK/BLK oy Pas Baan

pala

AIR SWITCH SOLENOID PNK/BLK Yn a

LT BLU

4

C POWER STEERING PRESSURE SWITCH

DK GRN/YEL

1

EGR SOLENOID CONTROL

{ |

!

=

\

\ i

\

CANISTER PURGE SOLENOID CONTROL |

| CENTER

AIR DIVERT SOLENOID

| BRN vvy jpn)

: POWER STEERING \ PRESSURE SWITCH INPUT } HLT

HOT IN RUN, BULB TEST, OR START Gaia Fuse:

PNK/BLK

PC—)

|

12-67

Wegssaat as

PNK/®LK

M

CANISTER PURGE SOLENOID Gi Y

LAAZ

erase

Taps

ee wee

fh

i"a Hien _j MODULE

OK BLU

«

eS

a

Males b>

FUSE 221 BLOCK

el EXHUST GAS RECIRCULATION (EGR) SOLENOID

OK BLU/WHT

eS

onl ee

| A ---d

a

FUEL INJECTOR PBL

Ae ya

1

|

IGNITION | ! FUEL INJ NO. 1 INPUT | | | 1

PNK/BLK

‘hast

FUEL INJ NO. 2 INPUT t

|

|

MAT SENSOR

! | \ | |

INPUT

| | | { SENSOR GROUND |

MAP SENSOR

INPUT

|

TAN

pt

BLK/ORN OR

ORN/BLK

fe

/

BLK/ORN OR ORN/BLK

|

| |

i

!

e

PNK/BLK

BLK/ORN OR

GRY

ORN/BLK

\ |

\ \

|

TPS INPUT

\ {

1

SENSOR

GROYAD

GRY

CEVICHE

BLK/PNK

al

. | |

BLK /PNK

I

YEL

CONVERTER

TRANSAXLE

(TPS)

FLUID

| |

| |

GEAR SWITCH

TEMPERATURE

SWITCH

COOLANT TEMPERATURE SENSOR (CTS) WHT

TRANSAXLE FLUID

| I

}

e TRANSAXLE ov

BLK /PNK |

!

|

CLUTCH SOLENOID

FOURTH

TEMPERATURE THERMISTOR

—_—_—_—_——_—_—____———"e

CTs INPUT |)>-——————€

TAN/BLK

| ORN/BLK pptMage PARK/NEUTRAL INPUT |)—————— On IDLE IDLE

SPEED SPEED

CONTROL

HI

CONTROL

LO

| | |

LT BLU | (eee !

SWITCH

TAN/BLK__/ CONTROL

THROTTLE

SWITCH

INPUT

BLK/WHT OR BLK alas

9

BLK i /WHT ee

BLK

NCA tt

GROUND | facade teea ss el

ELECTRONIC

CONTROL

MODULE

(ALDL)

LT BLU

DK BLU

os

LINK

(ISC)

\-——

| | |

es 2

ASSEMBLY LINE DIAGNOSTIC CONNECTOR

IDLE SPEED

| ! |

| | | !

tin /eLk

(eee

WHT

TEMPERATURE INPUT

|

1

AUTOMATIC RANSAXLE

viSCOUS

POSITION

I

PPL

PPL

ee SENSOR

Switch

e

gix/ORN OR ORN/BLK

DK BLU

|

!

|

CRUISE/VISCOUS CONVERTER

MANIFOLD

(MAP) sv ner |p—OR g§——_pRESSURE” SENSOR

|

| |

TEST, OR START Coo) esteerUSE { FUSE 18 |BLOCK | | (etal Pergzey Lo, ie!

(MAT) SENSOR

LT menanaee GRN 4 ace

{ 1

||

HOT IN RUN, BULB

MANIFOLD AIR TEMPERATURE

(ECM)

Engine control system - 1988 and 1989 Cadillac Deville/Fleetwood (1 of 2)

12-68

Chapter 12

HOT

Chassis electrical system

IN RUN, BULB

TEST OR START [pecs wa RELAY. CENTER

HOT IN_RUN OR START La TVruse ! FUSE 16 | gLock

Le

PNK/BLK

:

Teng2oe ig

frag a el)

ALL Tih TIMES HOT ATT ALL © 7 RELAY | FUSE 8 ! CENTER

|

|

ZONE

eae

ie eae

ORN

RAT eet Ti woes BAT

eet fF

TeNncIne

ASSEMBLY LINE

| / \eRessure |switch

UNK {ALDL) CONNECTOR

ke

orn

a

Cea niga:

!

GRY 0}

service [CLUSTER VEHICLE |

-----— ae !

rue.

SOON

|

Ao

Bath |

|

ial

|

oStist SYSTEM

|

r)

GRY

GRY

ES

SET/COAST

INPUT

CRUISE ENABLE INPUT VENT VALVE CONTROL

a

VACCUM VALVE CONTROL

Sah wat

L

4

GRY.

ine

pe Ee,

neal

OR

iw

a

BRAKE INPUT

SY) ae RESUME/ACCEL INPUT

ela

WoT

® GRY

GRY/BLK

SRI

ee eee ES eK ony

GRY]

! pea

ae

—~ INSTRUMENT

OK ssn

PNK/

TAN/WHT

,|

ue

PR

sit2

! SERVICE VEHICLE SOON IND CONTROL

SERVICE ENGINE SOON

IND CONTROL ! COOLANT TEMPERATURE IND’ CONTROL

| FUEL PUMP RELAY CONTROL

U TANK

|

GRY_OR TAN/WHT

FUEL PUMP PRIME CONNECTOR

——-------— ECM-BCM DATA— i

! ECM DATA OUT

LAs"

BCM~ECM DATA

cS

8CM DATA OUT esruwmenineia ermonmrenmenemscbs

!

«| FueL PUMP FEEDBACK

___ L————— BOOY COMPUTER MODULE

i LT GRN/BLK

abste cer

crank input

eg

Ngee

| RELAY CONTROL

| I

STARTING/CHARGING i!

VEHICLE BREED SENSOR

| A/C COMPRESSOR

| I | ! ee

SPEED INPUT

BUFFER 1

I |

PPL

el j BRAKES INPUT A

|

ade

{ VISCOUS

CONVERTER

| CLUTCH

PR

TAN

fer AT ALL TIMES—

lace3

START

™

VIGNITION

TAN @ ——

se sls

{

!

t

ser Ls

eee PPL {|

0 XYGEN

!SWITCH

| LocK® OFF

ip) ——

CONTROL

OXYGEN

SENSOR

INPUT

LO

OXYGEN

SENSOR

INPUT

HI

|

SENSOR

TAN/BLK

f

L———— — — —

BLK/RED

PNK

!

:ETS BYPASS OUTPUT | SPARK

TIMING

OUTPUT

! REF LO |

|

I REF

HI

| ! NCA

po

PNKI a i

TAN/

BLK}

WHT]

BLK/ oy

RED]

+ —-—1t—-6

[eee ee ae

Ky

WHT

—+

er Flo

|

oe | a

BuK/wiT

£ectronic

“TSPARK TIMING (EST) pPSTRIBUTOR aD

Engine control system - 1988 and 1989 Cadillac Deville/Fleetwood (2 of 2)

$$ ee

GROUND

||aneon

L ean

ELECTRONIC CONTROL MODULE(eeu

Chapter 12

Chassis electrical system

12-69

HOT IN RUN, BULB TEST, OR START

HOT AT ALL TIMES FUSIBLE UNK L

INJ 8 | RELAY FUSE 6 |CENTER 3Anea sh

REO

Tare She eae | |

| | | | i] | | j | | | ! ! | l | | ! ] {

AIR DIVERT

AIR SWITCH

eer am|

SOL CONTROL

!

LT BLU/ORN

|

POWER

|a DK GRN/YEL AL

VAPOR CANISTER PURGE SOLENOID CONTROL

icSeated

r)

PNK ak

CUT-OUT

EFE)

EGR SOLENOID

CONTROL

)

GRY

GRY/ RED

—

GRY/RED

EFE RELAY CONTROL

|

|

ony aan ome aw oe een aon ow

BLK/PNK

d

PNK/BLK

mn

RELAY

gee

'

SWITCH

| CENTER

EVAPORATION |

teas

VA) |. PNK/8LK each yaa

RELAY

foes

I

aoe STEERING

Ss on eee aes I UNDERHOOD

|

VAPOR CAN' ISTER PURGE SOLE! SOLENOID

EARLY EARL

FUEL on FUEL

FUEL FUEL

EVAPORATION

A

8

(Ere)

EXHUST GAS RECIRCULATION (EGR) SOLENOID

BLK

HEATER

BLU

GRN

FUEL INJ A CONTROL FUEL INJ 8 CONTROL TRANSAXLE

I

TEMPERATURE INPUT

| { | | | I

!

! | ! | | i] | | |

MAT SENSOR

INPUT

|

| |

INPUT

AUTOMATIC TRANSAXLE TEMPERATURE SENSOR (1988-89) BLK/PNK OR peel Amst

omen ua ae) MANIFOLD AIR TEMPERATURE

1

MAP SENSOR

BLK/PNK OR PNK/BLK

WHT

" GROUND !

!

BLK/RED

OR PNK/BLK

OR BLK/PNK

PNK/BLK

BLK/PNK mnt fou OR

GRY

| i _———e |

SV REF

! | | | | ! |

HOT IN RUN, BULB TEST, OR START

LT GRN

|

|

ra

(MAT) SENSOR

|

| i |

cr l

1 BRAKE | SWITCH

im

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

\1

ae »

PPL

|

PPL

1 TPS

|

! | |

! I GROUND

| | |

CTS INPUT

TEMPERATURE SWITCH

PARK/NEUTRAL

INPUT

PARK/NEUTRAL

INPUT

BLK/PNK

BLK

|)

YEL

/PNK

(fave)

e

BLK /PNK

|

LT BLU ie ne

| pet

IDLE SPEED CONTROL

|vl

ENGINE

CONTROL

MODULE

pe

INPUT

or

e OVER TEMPERATURE SWITCH

TAN/BLK

Hes

—_—_——— ee

GEAR SELECTOR SWITCH (1986-87) ie POSTION SWITCH

TAN/BLK

(1988-89)

IDLE SPEED (iSC) MOTOR

CONTROL

BLK/WHT

2

ASSEMBLY LINE

DIAGNOSTIC anit Gn) CONNECTOR

DK GRN/WHT

BLK/WHT SWITCH

FOURTH GEAR SWITCH

TAN/®LK

WENZ BUS

IDLE SPEED CONTROL

l | |

THIRD GEAR SWITCH

WHT

enemies: |Sr ' |

TEMPERATURE SENSOR (1986-87)

COOLANT TEMPERATURE SENSOR (CTS)

|

i]

VISCOUS CONVERTER CLUTCH SOLENOID

THROTTLE POSITION SENSOR (TPS)

l

THROTTLE

y

PPL AUTOMATIC TRANSAXLE

i | | | | | ! ! | |

| | TRANSAXLE

GRY

\ 1

INPUT

|

|

1

PNK/BLK

1 POWER STEERING CUT-OUT INPUT

t

| | | | | t | | | !

BLK/PNK ,|WA) | pn /BLK

ety | I AIR DIVERT SOLENOID ! BRN | WW) PNKsee /OLk sh 1>See

AIR SWITCH SOLENOID

| | | | ! i

=

SOL CONTROL

OTHER

(ECM)

+

ISO _GROUNO JUNCTION BLOCK BLK /WHT

1986

gama 4 | BLK (f

om

Engine control system - 1986 through 1989 Cadillac Seville/Eldorado (1 of 2)

12

12-70 a

a

Chapter 12 HOT IN RUN, BULB

START TEST_OR foe

eee

ee

we ew

Chassis electrical system

i

a a

a

CRANK

ECM

3A

10A

FUSE 7

10A

PPL/WHT

LEA

IEEE

EDO

LE

IL

HO T AT ALL TIMES

START HOT IN RUN OR STARTTUNER POOR HOT IN ee FUSE 8

PNK/BLK

LE EEE

SIT

SETS

ee

FUSE Abe

Y

SSS

SI

ED

A

TS

eS

A

HOR ALY

|cece

8

UNK

j

PNK/BLK ORN

(aretect reins} | CRANK INPUT

r

Pri

|

)

[aa

BODY COMPUTER

proceso r----4

|wiTcH

6

BAT

hd

BAT

i GRY

{

y mi

bia Cael

chaise

!

| !

\

|

*

sae

7 pod

| ! \

IGNITION

'

| CRANK INPUT |

| |

arake SWITCH INPUT

I

8 aNe | RESUME/ACCEL INPUT OK BLU CRUISE ———— CET/COAST IINEUT CONTROL 4| GRY/BLK_OR GRY) ceuise on/OFF INPUT Melis! ana DK BLU/WHT |VENT VALVE CONTROL

1986 OTHER a RET he

PS

ey

VACCUM

VALVE

| 1

CONTROL

| ! DK GRN/WHT

!

!

FUEL PUMP RELAY CONTROL |

|

Ore GRY

8 ASSEMBLY LINE DIAGNOSTIC

GRY (PS)

UNK CALLS ped CONNECTOR

P= Sham

| © 7 Vruer

1 y

jpuup UNIT

ES fo

FACTORY PRIMING INPUT

CONNECTOR

I \

i

ee

|At we,

BLK Eeme Ge Pr

WHT

BCM/ECM

ae

OR

WHT

:

|

|

PANEL

DATA LINE>

cere

eS

AIR CONDITIONING Wala [————

a

SET TIMING

G REQUEST

REQUES

:

\

a VEHICLE SPEED OUTPUTeee 6 Yt 8S Le ee BODY COMPUTER ty

aul

WHT/BLK

I

|FUEL PUMP FEEDBACK

INSTRUMENT a

peascanscs \

/BLK

1

| I

DK BLU ae

THEFT Ab aataly

Fuse s

KI

[pm BERZPNK LEAD \

15A

PUK OK

I|Se

WW NK/BLK e——@ end Wagga Seen

{

ieee AIR SWITCH SOLENOID

10A

SS SSG

iseeeee

aS

RED

5

reo

RED

°

e

at]

RED

az INJECTOR

@

WHT

FUEL INJECTOR

NO, 2

NO. 3

FUEL

INJECTOR

ee,

INJECTOR

ENO

a

rei]

{

|

EXHUST GAS RECIRCULATION

BLK/

| (EGR) SOLENOID LT GRN | ASSEMBLY LINE ! reneeeens DIAOHOSTIC | UNK (ALL) CONNECTOR i poh /8ix | Bee Seep piney | on |pA | BRN/WHT OVER SPEED l ALERT CONNECTOR |-— (EXPORT ONLY) | LK i OK BLU/WHT | BLK/LT GRN | | BLK /WHT { BLK/RED ! ! BLK/YEL ————— | BLK !

|

RIS

FUSE 22 BLOCK

10A

PNK/ BLK

LT BLU/ORN bers POWER STEERING PRESSURE SWITCH K GRN/YEL WV erases erin tee . VAPOR CANISTER PURGE SOLENOID

eae

I

FUSE 21

aes

or

PNK/BLK

! \ |

I

|

Ps

AIR DIVERT SOLENOID

|

pe

PNK/

\

12-71

St ABU

raw] BLK/

pw]

PNK

INJECTOR

FUEL NO. 7

INJeETOR

ss

INJECTOR

shi °

BLK/LT BLU

BLK/WHT]

LK /RED

BLK/YEL

BLK] OK BLU/WHT

OK BLU/

BLK/

WHT

LT BLU

BLK/LT BLU

i

1a

fed

!

i\

BLK/ORN

HOT IN RUN, BULB TEST, OR START

MANIFOLD(MAT)AIR SENSOR TEMPERATURE

\Do eeaenenennnRERERnERIEREEEREEEEERREEEaEE BLK/ORN

eee

erent

| I

|

tee FUSE 17wrath |BLOCK

|w

Ute EEepee

BLK /ORN

VISCOUS CONVERTER CLUTCH

MANIFOLO

etd

Pee SENSOR

!

|

Es

PNK/BLK

GRY

|

a|

GRY

pet]

smi

PPL

BLK/PNK

!

PPL

| |

OK

AUTOMATIC

BLU

TRANSAXLE

{

THROTTLE POSITION

| \

[uno | >

| \ !

|

8LK/PNK YEL

SENSOR

(TPS)

THIRD

GEAR SWITCH

@

CONVERTER CLUTCH SOLENOID

FOURTH

GEAR SWITCH

BLK/PNK ¢

COOLANT TEMPERATURE SENSOR (CTS)

ORN/BLK

|

TAN/BLK

NEUTRALA

slows

pp SAFETY

BACKUP

| I

SWITCH

| !

I

LT BLU

|

OK BLU

IDLE SPEED MOTOR

CONTROL (iSC)

!

| |

|ee PNK

p-BLu/WHT__y \———_—__— _@LK/WHT_

12 a}:

(ECM)

Engine control system - 1990 Cadillac Deville/Fleetwood (1 of 2)

Chassis electrical system

Chapter 12

12-72

HOT IN RUN, BULB TEST, OR START_

RUN, BULB ‘cesT onsSTART

erie

Gace |aaheee RELAY

1

|CENTER

Fuse 6

\

I

{

20A

\

(ag

L

a PNK/BLK

HOT AT ALL TIMES Lataty

eae

be

eae [

ae

1

10A

|

|

RELAY

ruse 8 I CENTER

§ FUSE 16 4 stock | 20A

HOT IN RUN, BULB te OR STARTLis FUSE FUSE 17 | BLOCK \

ORN

PNK/BLK

{

15A

(1a

ay

|

haka)

PNK/BLK CS

Sirabe ce oe

ah

!IGNITION ————

|

eenbene Ae (ALDL) LINKIAGNOSTIC

Hl iyo a

| PRESSURE SWITCH

\ oy

GRY

Oe cr?

BLK

WH

tg) ia “srence USER

Centon |

fuer

[RSs GRY

a

es Gy BLK

BRN/WHT

a

VENT VALVE CONTROL

Ls

EYVACCUM VALVE CONTROL

RSE

FUEL PUMP

PRIME

CONNECTOR

ean

FUEL

--------45 i ECM DATA IN ey ce oe Oe ome ete

—__!

IR

BODY COMPUTER MOOULE

ECM DATA OUT

CON

LT GRN/BLK

Be Cone veteeseee TH

Ree vs] +

TERRENT

CFT OER

a

INSTRUMENT en beget

BCM DATA IN

eee

ee

ae

BMC DATA OUT jee

t

cle

|!

| CRANKING FUEL

I

i !

| l

enaotenineuT

GRAN aa!| VEHICLE SPEED OUTPUT mrOK i PPL

(I

!VEHICLE SPEED { SENSOR IN LO !

|

TAN/BLK 1

PPL

|

|

‘{ | I

venicie speen

| SENSOR IN HI

Spl

\ ! ||

_,| A/C COMPRESSOR

See RELAY CONTROL

DK BLU

VEHICLE SPEED SENSOR

!

|

FUEL PUMP FEEDBACK |

oe yoke UNIT

\

| Service ENGINE SOON ! 1 {NO CONTROL I FUEL PUMP RELAY CONTROL |

eases based

+ Sic.

RAKE SWITCH INPUT

_,|j SERVO POSITION SENSOR LO;| | _y OK BLU =H SET/COAST INPUT cement par a eRe On —_—_——_—_ cue ENABLE INPUT \

NCA Lea Fas | FRI FILTER

|

RESUME/ACCEL INPUT servo PosiTiON SENSOR HI I

NCA

GRY

|

I

pd LT BLu/eLK

CRUISE CONTROL SYSTEM

gllale

re Tt REQUEST a jISET TIMING |

CRY /BER

ail

t

}__cer GRY

SOON || aa |

|

puMP | RELAY | {

I | \

GRY

WHT/BLK eo

CONNECTOR

ey

|

BAT

ORN_,

| |

|

|BRAKE INPUT _¢| VISCOUS CONVERTER j CLUTCH CONTROL \ I

| FOURTH GEAR INPUT

|

!

I

|

\ | I\

THIRD GEAR INPUT

OXYGEN SENSOR INPUT LO aTAN | TAN

TAN

BLK

PP

OXYGEN SENSOR - HOT AT ALL TIMES_ lnc,

TAN/BLK

start

OFF

i

!

|

.

— TVIGNITION | SWITCH

| | I

1 \

SPARK TIMING OUTPUT | GROUND

I t i ! I |

| BYPASS SPARK OUTPUT

| Lock®

{

OXYGEN SENSOR INPUT Hi |

RUN

L—-—-——~—~——

PNK

|

1 DISTRIBUTOR REFERENCE | PULSE INPUT | CaM POSITION

fe

r

!

\

|

4

TAN/

WHT

NCA)

SENSOR INPUT

BLK/WHT_. _BLK/WHT

|cRouND

1 BLK/WHT

y GROUND GROUND | etow

/| PPL/| BRN/ “re WHT] WHT — — ELECTRONIC JSPARK {TIMING (EST)

peel 1 BLK ee ae { Z

yo Mabeoalhe

en a net]

Engine control system - 1990 Cadillac Deville/Fleetwood (2 of 2)

we

ie

| | I

| | I |

| ye ee

ELECTRONIC CONTROL MODULE

{

(ECM)

Chapter 12

Chassis electrical system

HOT IN RUN, BULB TEST, OR START HOT IN RUN OR START le eee ee ee

Weaaae

AIR DIVERT SOL CONTROL ——

1 1 { | | | | | | | | | | ! ! !

|

| AIR SWITCH SOL CONTROL

POWER STEERING PRESSURE

INPUT

VAPOR CANISTER PURGE

SOLENOID CONTROL EGR SOLENOID CONTROL

| !

|

LIFT/OIVE SIGNAL OUTPUT

! COOLANT FAN LOW SPEED

!

I

EXPORT SPEED ALARM

i]

I | | | I !Sac

STEERING

OK GRN/YEL VAPOR

——

CANISTER

rt

acer

COMPUTER

BRN/WHT

FUEL INJ NO. 1 INPUT

Soe

FUEL INJ NO. 7 INPUT yp l

|

|I

i |

' |

1

CTS INPUT

| i j \ |

TRANSAXLE SWITCH INPUT

PARITY

fag roaey

Be

MA

! |

IDLE SPEED CONTROL

|

{

i}

ew]

INJECTOR

rice INJECTOR NO. 5

THROTTLE

UNPUT

SWITCH

ae aeie es oe eae POWERTRAIN CONTROL MODULE

ea! OR

ENGINE

CONTROL

MODULE

(ECM)

INJECTOR

NO. 6

BLK/WHT

BLK/RED

NO. 7

BLK/YEL

ve

alasta

HOT IN RUN, BULB

TEST, OR START

®

Test. OR START _ ikon INTER! ie IGN [RELAY \ FUSE 1 |CENTER

Se feleceeen PNK/BLK

GRY

L{iA__ PNK/BLK

|f A 1|vcec/cruise vacuum

BLK/PNK

| ot

MANIFOLD

gery®

(MA (WAP) RESSURE. SENSOR

PRESSURE

PPL

yee STCH if

u PNK/BLK

PPL

earth 2 IT

PNK/BLK

PPL

PNK/BLK AUTOMATIC UA EES THROTTLE SENSOR (TPS)

ve

ave]

a

e—(

mee

|—— calihs

a)

| | I

PNK/BLK OR PNK

e

SHIFT ISOLENOID A

VISCOUS CONVERTER CLUTCH | * |SOLENOID

VISCOUS CONVERTER CLUTCH eerewen

YEL/BLK

TAN/BLK TAN/BLK

TRANSAXLE POSITION

|pm

2 i ;

SWITCH

LT BLU/BLK OR LT BLU

|

SHIFT SOLENOID 8

epncsaux |

| COOLANT TEMPERATURE 1 SENSOR (CTS) | WHT |jy

|

ic ECS | FUSE 3

HOT IN RUN, BULB

TIUNDERHOOD JRELA' ICENTER

YEL/BLK IDLE SPEED CONTROL (ISC) MOTOR

IDLE SPEED CONTROL

i | | |

ret] FUEL

BLK OR BLK,

ers NSO

SEE LUER

PARK/NEUTRAL INPUT | , TRANSAXLE SWITCH INPUT C ‘> YEL/BLK | | TRANSAXLE SWITCH INPUT B ————$—$—$-___—=> | TRANSAXLE SWITCH INPUT A |) ae | !

PNK

)

GRY \ | TPS INPUT 5 \ I I RETURN ! SENSOR R RETU

|

ee BLK INJECTOR NO. 8

BLK/LT BLU

|—_——____( EIGEN !

1!

j | |

FUEL INJECTOR NO. 1

Z TAN

\ |

| {

ee

FUEL INJECTOR NO, 4

CONNECTOR EXPORT ONLY

:

5V REF

ae

OVER SPEED

|

||

COOLANT

FANS

LK OR BLK/R = a on 2d fais

SENSOR RETURN

Ke

BEDI

ca

WHT/T

>

FUEL INS NO. 4 INPUT ; FUEL INJ NO. 6 INPUT |

MAP SENSOR INPUT

WHT/

RIDE >

'

! '

_BLK/

LT GRN

nrnignwanesoee > COMMAND

DK GRN/YEL OR DK GRN

|

MAT SENSOR INPUT

WHT/

rn]

(EGR) SOLENOID

7" —— So uA

|

ROOD CENTER |

WHT/ .

SOLENOID

EXHUST GAS RECIRCULATION

FUEL INJ NO. 8 INPUT | FUEL INJ NO. 3 INPUT FUEL INJ NO. 5 INPUT |

I

(fae a

INJECTOR NO. 2

aa

Pee

|

ee TNE ruse. 6 us

SWITCH

NK/BLK ale

PURGE

LT GRN/BLK j._-

a

LWW) | _PNK/BLK

BLK/LT GRN

1 |

2

CUT-OUT

WwW (Heza

FUEL INJ NO. 2 INPUT

!

RED

i

(

POWER

> 1 |

CONTROL OUTPUT No. 2 !|)

\

La

I

COOLANT FAN HIGH SPEED |

5

a 8

——_ 8 raat het RED OR I AIR ss SOLENOID BLK RED/BLK | | LT Bu PNK/BLK e !yok OKAyer > ie ° neo

! NO. 1 I?

CONTROL OUTPUT

a aFd SS Chall Ee eee

AIR DIVERT SOLENOID

pai

Fuse 3 U

|

12-73

r pee. yen aLK/WHT tO ee

“

1SO GROUND

JUNCTION

BLOCK

Engine control system - 1990 and 1991 Cadillac Seville/Eldorado (1 of 2)

12-74

Chapter 12 MEST OR START.

iia

Chassis electrical system HOT IN RUN

|

FUSE 2¢FUSE7

10A | 10A Soe ene Na PNK/BLK

OR START

real plleneale

INTERIOR

(1990) |(1991), | lea

| FUEL PUMP 4 PCM-IGN

|

peters

{|

y

HOT AT ALL TIMES

FUSE

§IGNi-Iso

jeLOck

FUSE 18

10A

!

re (AL Lasha PNK/BLK

5 acrory PRIMIN

HOT IN RUN

(iz =—=—

FUSIBLE

UNK 8

OR START

= — = — ae ]UNDERHOOD

|

(1990) eh

|

FUSE ¢ FUSE

INPUT

v

CONNECTOR penne

FR To

|

TF

peaceeevee

1c201

I

I

7 rere

CONNECTOR

henna aa

ui F

i g GRY

Ly

ASSEMBLY LINE re

eval

SRSA

we

y

CENTER

IND

|

ef rast

FLEX CKT

ee

CRUISE

FAST IDLE REQUEST INPUT BRAKE

SWITCH

INPUT

RESUME/ACCEL INPUT

ea

SERVO POSITION SENSOR HI

LT_BLU/BLK

| servo POSITION SENSOR LO

CONTROL SYSTEM | | —_—_—_—_

- 7 1c201

aL

tet

SRY /BCK

Soon

a

oe

SET TIMING REQUEST

Tea

i. ~~ TMNFORMATION service ICENTER

ae ones li ee

IGNITION BAT

pels ee! LOL

FLEX CKT

I

108 10a PNK/BLK

ts

+——._ (1991 ONLY)

eee

7

OK BLU

SET /COAST INPUT

GRY ABA OR CRY} | CRUISE ENABLE INPUT

,

DK BLU OR DK BLU/WHT (| VENT VALVE CONTROL Lx

LT GRN

|

AMS

see

| VAC CUM VALVE CONTROL

cs,

SERVICE

ENGINE

SOON

[| IND CONTROL DK

po---------

GRY

Cae

at

eet

(1990 ONLY) —» FACTORY PRIMING Il CONNECTOR

j BCM/PCM ECM DATA LINEseeder | VEHICLE SPEED iNpuT!

NCA

L-_—_~____

ies ge

| |

Hae

ee I NCA

J

BODY COMPUTER MODULE

JUNIT

GRN/YEL

OR

OK

nine

AIR See avernnqe

GRN/WHT

FUEL

PUMP

RELAY

! FUEL

PUMP

FEEDBACK

BCM/PCM ECM DATA LINE Reo! | BCM/PCM ECM DATA LINE OK GRN/YEL

A/C COMPRESSOR

ome

bes CONTROL

K BLU THEFT DETERRENTeee

isis og =INPUT mnlie eas af VEHICLE SPEED sip CoIRvic “COMMAND creMODULE

RN/WHT1H sencn

CONTROL

RANKINGseFUEL oe

K GRN/YE L ¢_ocemve

VEHICLE SPEED OUTPUT

rt

'

venice seeeo | SENSOR IN LO

BLK

!

&

ee

ee

VEHICLE

| SENSOR

SPEED

IN HI

! VCC BRAKE

TAN/BLK

PPL

INPUT

I j VISCOUS CONVERTER CLUTCH CONTROL | VISCOUS CONVERTER CLUTCH MODULATION i} SHIFT SOL A CONTROL

|

SHIFT SOL 8 CONTROL (7b

TAN pe

TAN

nen

NCA

a

NC.

BLK/WHT

OR PPL

fy

Bu K/WHT 0 wlulalalt

|

| FRONT O02 SENSOR | { FRONT 02 SENSOR

IN LO IN HI

FRONT OXYGEN SENSOR

0TAN,

NCA

cols AT ALL TIMES —

lace A

TAN/BLK

~ TVIGNITION START sl i

| Locke I OFF Li.

gy REAR

! REAR 02 SENSOR IN HI

OXYGEN

SENSOR

Ma TAN,

\ |

REAR 02 SENSOR

z eu

SPARK

Le

BLK OR BLK/RED

PNK YEL/BLK

IN LO

BYPASS SPARK OUTPUT ADVANCE

{ DISTRIBUTOR | PULSE LOW

OUTPUT

REFERENCE

| DISTRIBUTOR REFERENCE | PULSE/HI INPUT | CAM POSITION | SENSOR INPUT NCA

LK

fp ee

/WHT

BLK/WHT

| GROUND

1

atk/w

!

®

H BLK/WHT

e

NCA] rc---

NCAINCA]

NCA]

NCA

st

ll iin (EST)

MODULE

Ws

ee ee

er

{ GROUND

| GRrouno | | GROUND { Li

See ere WE ee as a ee sige CONTROL MODULE PCM ENGINE CONTROL MODULE (ECM)

Engine control system - 1990 and 1991 Cadillac Seville/Eldorado (2 of 2)

EE

ee

Chapter 12

12-75

Chassis electrical system

HOT IN RUN, BULB TEST, OR START r-r--- oe

HOT IN RUN OR START ee ee ee

a

a

ee

ge

ee ee ae

| ! | | | I ( | I | ! | | | | ! i | | ! ! ! ! | I I | | | | I | | t | | ! I I { | | I | | | { I ! !

AIR DIVERT

SOL CONTROL

ea | —

FUSE 5 | 15A Lo-}-—---—-—-—-—

Weseasl

enn /BlK

oy,

AIR DIVERT SOLENOID AIR SWITCH

SOL CONTROL

)

(oa)

VAPOR CANISTER PURGE SOLENOID CONTROL

ptt

BLU/ORN

PNK/

SOLENOID

e

>

PNK/BLK

IN DATA

CANISTER

PURGE

By

HIGH SPEED FAN RELAY

COOLANT CONTROL

INJ NO.

8 INPUT

FUEL

INJ NO.

3 INPUT

FUEL

INJ NC.

5 INPUT

FUEL

INJ NO.

4 INPUT

FUEL

INJ NO.

6 INPUT

FUEL

INJ NO.

1 INPUT

FUEL

INJ NO.

7 INPUT

MAT

SENSOR

INPUT

MAP

SENSOR

RETURN INPUT

| ! | I 5V REF | I | I ! I ! TPS INPUT | | ! | SENSOR RETURN | I CTS INPUT | \ ! I I | TRANSAXLE POSITION SWITCH PARITY INPUT | | TRANSAXLE SWITCH INPUT C | | TRANSAXLE SWITCH INPUT B | TRANSAXLE SWITCH INPUT A I I IDLE SPEED CONTROL | | 1OLE SPEED CONTROL | | I | THROTTLE SWITCH INPUT !

ce

FUEL INJECTOR

FUEL INJECTOR NO. 4

BLK/ LT GRN

ret]

FUEL

FUEL INJECTOR NO. 7

IN seCTOR NO. 6

ew]

eur] BLK/ PNK

INJECTOR

8CM/PCM DATA

GRY/BLK

INJECTOR NO. 1

iz

PNK/BLK

FUEL

INJECTOR

NO. " 8

NO. y S

abt COOLANT

DK GRN/WHT

er

eh

8LK/LT BLU

FANS

BLK/WHT

z

BLK/YEL

BLK/RED

Dk BLU/ WHT

BLK] OK

BLK/ LT BLU

BLU/WHT

BLK/ LT BLU

BLK/REO BLK/YEL

TAN

pe

tt

BLK/ORN

MANIFOLD AIR TEMPERATURE (MAT) SENSOR SENSOR

WHT

SOLENOID

FUEL iNJ NO. 2 INPUT FUEL

r

ed

INJECTOR

TA N

OUT

COOLANT CONTROL

ry

FUEL

TW)

EXHUST GAS RECIRCULATION (EGR) SOLENOID DATA

RED

POWER STEERING PRESSURE SWITCH

K GRN

CONTROL

LOW SPEED FAN RELAY

. reo

peony fra mace) | BS VAPOR

EGR

RED

PNK/BLK ees §

AAA

AIR ee SOLENOID POWER STEERING PRESSURE SWITCH INPUT

EE RELAY: Fuse g | CENTER 10A | ---4

Pe

BLK/ORN tat

pee

wel Sanh

HOT

IN RUN,

BULB

TEST, OR START SiS = = TIRELAY FUSE 5 [CENTER 15A CBeaetode!

Pun ou

cy

PNK/@LK]

GRY

PA

| i ees

MANIFOLD ) Cg PRESSURE (MAP

GRY on’

SENSOR

TVvcc/ANTILOCK | BRAKE | SWITCH

pL] PPL

GRY

BLK/PNK

; PPL

PNK/BLK

AUTOMATIC TRANSAXLE

OK BLU —————-( THROTTLE POSITION SENSOR (TPS)

SHIFT SOLENOID B

BLK/PNK ———————_—_—_—_— ;

YEL

(fw)

SHIFT SOLENOID A

VISCOUS : CONVERTER CLUTCH SOLENOID

Vcc PWM SOLENOID

BLK/PNK

COOLANT TEMPERATURE SENSOR (CTS)

LT GRN

TAN/BLK

TAN/BLK

DK BLU/WHT

OK GRN

GRY

NEUTRAL

Yeu BLK/WHT

BACKUP SWITCH

LT BLU OK SLU

YEL/BLK

IDLE SPEED CONTROL (ISC) MOTOR

BLK /WHT

POWERTRAIN CONTROL MODULE (PCM) Engine control system - 1991 and later Cadillac Deville/Fleetwood (1 of 2)

12

Chassis electrical system

Chapter 12

12-76 HOT

IN RUN,

BULB

re)

I es PNK/BLK aL

ae OR START “ye | FUSE BLOCK

FUSE 17 15A (Eee

{

;\

|

.

PNK/BLK

RED

eneues

eer

BULB

IN RUN,

HOT

AT ALL ws HOT r-T--7 | GNOERHOOD MAXI | FUSE 4 | FUSE 20a—ts«dt | BLOCK Wee Bp ay

START HOT iN RUN ae_ORcarey pe 16 | VISE i BLOCK ey cian

TEST OR START

PRIMING

CONNECTOR

I

:IGNITION ———

LINK

CONN! TOR

|

BAT

eee,

MBLY LINE “Ss biacnostic a

!

| BAT

BUX

__ = I

RELAY

DK GRN/WHT|

|

1 | | | |

Low speeo coouant! FAN RELAY CONTROL| | HIGH SPEED COOLANT| FAN RELAY CONTROL; ee as Ay pn,Seen POWERTRAIN CONTROL MODULE

Snax

ay

)

= PNK/BLK

:

COOLANT FAN RESISTORS

BLK/RED

Nod

BLK/RED RH

16504 i! FUSE BLOCK (eel eee

CouPRessoR CONTROL RELAY

3 ;

BR SRNASHE

HOT AT ALL TIMES PT -——7RH { FUSE 3 tepERHoOD

PNK/BLK

BLK/PNK

A/c COMPRESSOR

LH

COOLANT FAN

CLUTCH

COOLANT FAN

NCA LK rp---------

5

INPUT

letower speco variaate ly PPL/WHT

BLK

BLK

Serra

VOLTAGE OUTPUT|

BLOWER FEEDBACK

INPUT

Gish oa ae RELAY | § FUSE 4 [CENTER

|

c

|

PPL

|

| !

10A

4

Gae

eae

ELECTRONIC

PCM DATA input|

FEEDBACK INPUT |

i i

HOT IN RUN

|

i

I

(ied

i

POSE

FUSE 7 | BLOCK

(

|

20A

Ween

peor

1

|

| |

I I

l acm pata input

||

BCM/PCM DATA

| BCM DATA OUTPUT | es ae]

LINE

POWERTRAIN CONTROL

MODULE r

pt

2

!

|

CLIMATE

NTRO mented MODULE

oux| ry

des

CONTROL j

|

BRN

AIR MIX VALVE|

\

|

GROUND

.

ORN

CONTROL RELAY|

|

BLK

>

BLOWER MOTOR

pole LT GRN/BLK

|

|

VOLTAGE

OUTPUT

BLK

oe

! A/c compressor |

| SLOWER

pp.

|

PPL

\

I IGN INPUT|

NCA

.

| |

y

DIODE

BLK

|

BCM DATA OUTPUT

COMPRESSOR CLUTCH

4

INPUT|

|

—

BRN

on

Pe

eect

SV INPUT

Gea

CLOCK INPUT

———

IGN INPUT T cues

Bees

LT BLu

l A/C towSWITCHpaessuec yO INPUT OK 8LU/WHT

REFRIGERANT HIGH SIDE| TEMP SENSOR INPUTj

tis EI

REFRIGERANT LOW SIDE| hoe TEMP SENSOR INPUT| In-vewicue tewe| | SENSOR INPUT p

DEFOGGER

Peseta

| [|DATA INPUT

MIRRORS

jpNCA_eak/wutf

BLK/PNK ¢

e

SENSOR

ca

BLK /PNK

A

acu

ux/en

UNE

SOLAR

ouTsipe temp !

SENSOR INPUT |

t—~———~———— _4 BODY COMPUTER

MODULE

GROUND

L———_{/

crouno

YEL PPL/WHT

CLOCK

PPL/WHT ORN/BLK

ORN/BLK TAN

SENSOR

TAN

e

DIOR ae

BLK/WHT

YEL

NCA

DATA INPUT/OUTPUT

BLK/WHT

REFRIGERANT LOW SIDE NCA

IGN INPUT

OK BLU/WHT

;

TEMPERATURE

BLK /PNK

CONTROL

| | GROUND eS SN Pie Peah ELECTRONIC CLIMATE CONTROL PROGRAMMER

tects

a LT BLU/BLK y

| DEFOGGER RELAY

BLK/wHT

PRESSURE” ‘SWITCH

[awe] IN-VEHICLE

!

SENSOR RETURN

NCA

TEMPERATURE SENSOR

DK GRN

i]

OK StU

AND HEATED

‘p ——(

eee

I SOLAR SENSOR INPUT

REAR

BLK/PNK REFRIGERANT HIGH SIDE TEMPERATURE SENSOR

y !

INPUT l oe OCKCK INP!

——!

INPUT/OUTPUT |

CONTROL DATA INPUT/OUTPUT

n-----4

TAN I Nae ae (

PROGRAMMER DATA |

CLIMATE

A/C

ee as

OUTSIDE TEMPERATURE

INTERIOR LIGHTS DIMMING I oy

SENEOR

LED IND

CLIMATE CONTROL PANEL

Heating and air conditioning system (including engine cooling fan system) - 1991 and later Cadillac Deville/Fleetwood

ES

IND-1

Index A

Automotive chemicals and lubricants, 0-14

Auxiliary oil cooler, removal and installation, 7-9

About this manual, 0-2 Accelerator cable, removal and instailation, 4-9 Acknowledgements, 0-2 Air cleaner assembly, removal and installation, 4-9

Air conditioning accumulator-drier, removal and installation, 3-13 compressor, removal and installation, 3-14 condenser, removal and installation, 3-15 evaporator, removal and installation, 3-15

expansion (orifice) tube, removal and installation, 3-16 Air conditioning and heating system, check and maintenance, 3-11 Air filter replacement, 1-24

Air Injection Reaction (AIR) system (Cadillac models), 6-23 Airbag system, general information, 12-22 Alignment, general information, 10-23 Alternator, removal and installation, 5-10 Antenna, general information and check, 12-12

Antifreeze, general information, 3-3 Anti-lock Brake System (ABS), general information and trouble codes, 9-2 Automatic transaxle, 7-1 through 7-10

auxiliary oil cooler, removal and installation, 7-9 brake/transaxle shift interlock system, description, check and adjustment, 7-6 diagnosis, general, 7-3 driveaxle oil seals, replacement, 7-8

fluid and filter change, 1-23 fluid level check, 1-12 park/lock cable (floor shift models), removal and installation, 7-6 Park/Neutral switch, check, replacement and adjustment, 7-7 removal and installation, 7-9 shift cable, replacement and adjustment, 7-4

shift lever (floor shift models), removal and installation, 7-3 throttle valve cable (1986 through 1990 models), replacement and adjustment, 7-5

vacuum modulator, check and replacement, 7-8

Balance shaft (V6 engine) inspection and removal, 2C-11 installation, 2C-25 Balljoints, check and replacement, 10-9 Battery

cables, check and replacement, 5-2 check and maintenance, 1-15 check and replacement, 5-2 emergency jump starting, 0-13 Blower motor and power module, removal and installation, 3-9 circuit, check, 3-9 Body, 11-1 through 11-18 bumpers, removal and installation, 11-7 center console, removal and installation, 11-15 cowl cover, removal and installation, 11-10 dashboard trim panels, removal and installation, 11-16 door latch, lock cylinder and handles, removal and installation, 11-12 removal, installation and adjustment, 11-11 trim panel, removal and installation, 11-10 door window glass regulator, removal and installation, 11-13 removal and installation, 11-13 filling and painting, 11-3 front fender, removal and installation, 11-8 fuel door solenoid, removal and installation, 11-15 hinges and locks, maintenance, 11-3 hood latch and release cable, removal and installation, 11-7 hood, removal, installation and adjustment, 11-6 hood support struts, replacement, 11-6

IND

IND-2

Index

instrument panel upper trim pad (Deville/Fleetwood models), removal and installation, 11-17

electrical troubleshooting, 12-1 fuses, general information, 12-2

maintenance, 11-1 outside mirrors, removal and installation, 11-14

fusible links, general information, 12-4 headlight adjustment, 12-14 bulb, replacement, 12-13 door actuator (Toronado models), check and replacement, 12-14 housing, replacement, 12-15 horn, check and replacement, 12-18 ignition switch and key lock cylinder, check and replacement, 12-9

radiator grille, removal and installation, 11-6 repair major damage, 11-3 minor damage, 11-2

seats, removal and installation, 11-18 trunk lid latch, striker and lock cylinder, removal and installation, 11-15

codes, 9-2 brake disc, inspection, removal and installation, 9-9

instrument cluster, removal and installation, 12-11 instrument panel gauges, check, 12-11 switches, check and replacement, 12-10 power door lock and keyless entry system, description and check, 12-21 radio and speakers, removal and installation, 12-11 relays, general information and testing, 12-4 steering column switches, check and replacement, 12-6 sunroof, electric ,description and check, 12-22 turn signal/hazard flasher, check and replacement, 12-5 window defogger (rear) and heated windshield, check and repair, 12-18 window system, power, description and check, 12-20 wiper motor, check and replacement, 12-17 wiring diagrams, general information, 12-23 Chassis lubrication, 1-18 CHECK ENGINE light, 6-2

brake light switch, removal, installation and adjustment, 9-24

Circuit breakers, general information, 12-4

Caliper, removal and installation, 9-8 disc brake pads, replacement, 9-5 drum brake shoes, inspection and replacement, 9-10 hoses and lines, inspection and replacement, 9-20 hydraulic system bleeding, 9-21 master cylinder, removal and installation, 9-19 parking brake adjustment, 9-22 cables, replacement, 9-22 pedal travel check, 9-24 power brake booster, check, removal and installation, 9-20

Coil spring (rear) (Deville/Fleetwood models), removal and

trunk lid release actuator and pull-down unit, removal and

installation, 11-15 trunk lid, removal, installation and adjustment, 11-14 upholstery and carpets, maintenance, 11-2 vinyl trim, maintenance, 11-1

windshield and fixed glass, replacement, 11-3 Body Computer Module (BCM), general information and replacement, 12-5

Booster battery (jump) starting, 0-13 Brake check, 1-21

Brake fluid change, 1-24 ; Brake/transaxle shift interlock system, description, check and adjustment, 7-6 Brakes, 9-1 through 9-24

Anti-lock Brake System (ABS), general information and trouble

wheel cylinder, removal and installation, 9-18 Bulb replacement, 12-15 Bumpers, removal and instailation, 11-7 Buying parts, 0-7

Cc Camshaft and lifters installation, 2C-24

removal, 2C-12 Camshaft position (CMP) sensor, check and replacement, 6-17 Camshaft, lifters and bearings, inspection, 2C-19 Catalytic converter, 6-28

Center console, removal and installation, 11-15 Charging system check, 5-9 general information and precautions, 5-9 Chassis electrical system, 12-1 through 12-106 airbag system, general information, 12-22 antenna, general information and check, 12-12 Body Computer Module (BCM), general information and replacement, 12-5 bulb replacement, 12-15

Circuit breakers, general information, 12-4 cruise control system, description, check and cable adjustment, 12-20

Daytime Running Lights (DRL), general information, 12-18 electric side view mirrors, description and check, 12-21

installation, 10-11 Control arm, removal and installation front, 10-8 rear, 10-13

Conversion factors, 0-15 Coolant temperature gauge sending unit, check and replacement, 3-8 Cooling system check,

1-17

servicing (draining, flushing and refilling), 1-25 Cooling, heating and air conditioning systems, 3-1 through 3-16 accumulator-drier, removal and installation, 3-13 air conditioning and heating system, check and maintenance, 3-11 antifreeze, general information, 3-3 blower motor and power module, removal and installation, 3-9 circuit, check, 3-9 compressor, removal and installation, 3-14 condenser, removal and installation, 3-15 coolant temperature gauge sending unit, check and replacement, 3-8

engine cooling fans, check and replacement, 3-4 engine oil cooler, replacement, 3-8 evaporator, removal and installation, 3-15 expansion (orifice) tube, removal and installation, 3-16 heater and air conditioning control assembly, removal and installation, 3-10 heater core, replacement, 3-11 radiator and coolant reservoir, removal and installation, 3-5 thermostat, check and replacement, 3-3 water pump, check and replacement, 3-6 Cowl cover, removal and installation, 11-10 Crankshaft

inspection, 2C-18 installation and main bearing oil clearance check, 2C-22 removal, 2C-14 Crankshaft front oil seal, replacement V6 engine, 2A-10 V8 engines, 2B-10

IND-3

Index SSS

SSS

Crankshaft position (CKP) sensor (Buick and Oldsmobile models), check and replacement, 6-16 Cruise control system, description, check and cable adjustment, 12-20 Cylinder compression check, 2C-5

Cylinder head cleaning and inspection, 2C-10 disassembly, 2C-9 reassembly, 2C-11 removal and installation V6 engine, 2A-9 V8 engines, 2B-8 Cylinder honing, 2C-16

D Dashboard trim panels, removal and installation, 11-16 Daytime Running Lights (DRL), general information, 12-18 Disc brake pads, replacement, 9-5 Distributor (Cadillac models), removal and installation, 5-8 Distributor cap and rotor check and replacement (Cadillac models only), 1-28 Distributorless Ignition System (DIS), component check and replacement, 5-4 Door latch, lock cylinder and handles, removal and installation, 11-12 removal, installation and adjustment, 11-11 trim panel, removal and installation, 11-10 Door lock (power) and keyless entry system, description and check, 12-21

Door window glass regulator, removal and installation, 11-13 removal and installation, 11-13 Driveaxie oii seals, replacement, 7-8

Driveaxles, 8-1 through 8-8 driveaxle boot, replacement, 8-3 general information, 8-1 removal and installation, 8-2 Drivebelt check and replacement, 1-16 Driveplate, removal and installation V6 engine, 2A-15 V8 engines, 2B-14 Drum brake shoes, inspection and replacement, 9-10

SSS SSS

SSS

SSS

SSS

Evaporative Emission Control System (EECS), 6-28 Exhaust Gas Recirculation (EGR) system, 6-27 Idle Air Control (IAC) valve (Buick and Oldsmobile models), check and replacement, 6-20 Idle Speed Control (ISC) motor (Cadillac models), check and replacement, 6-21 Intake Air Temperature (IAT) sensor, check and replacement, 6-15 Manifold Absolute Pressure (MAP) sensor (Cadillac models), check and replacement, 6-14 ‘ Mass Airflow (MAF) sensor (Buick and Oldsmobile models), check and replacement, 6-13 On Board Diagnosis (OBD) system and trouble codes, 6-2 oxygen sensor (02S), check and replacement, 6-18 Positive Crankcase Ventilation (PCV) system, 6-26 Power Steering Pressure (PSP) switch, check and replacement, 6-18 Thermostatic Air Cleaner (THERMAC) system (Cadillac models), 6-25

Throttle Position Sensor (TPS), check, replacement and adjustment, 6-12 Vehicle Speed Sensor (VSS), check and replacement, 6-19 Engine Coolant Temperature (ECT) sensor, check and replacement, 6-15 Engine cooling fans, check and replacement, 3-4 Engine electrical systems, 5-1 through 5-12 alternator, removal and installation, 5-10 battery cables, check and replacement, 5-2 check and replacement, 5-2 emergency jump starting, 0-13 charging system check, 5-9

general information and precautions, 5-9 distributor (Cadillac models), removal and installation, 5-8 Distributorless Ignition System (DIS), component check and replacement, 5-4 High Energy Ignition (HEI) system, component check and replacement, 5-6 ignition system check, 5-4 general information, 5-3 starter motor and circuit, check, 5-11 removal and installation, 5-12 solenoid, removal and installation, 5-12

starting system, general information and precautions, 5-10 Engine oil and filter change, 1-13 Engine oil cooler, replacement, 3-8 Engines

E Early Fuel Evaporation (EFE) system (Cadillac models), 6-24 Electrical troubleshooting, 12-1 Electronic Control Module (ECM), general information and replacement, 6-10 Electronic Spark Control (ESC) system (Buick and Oldsmobile models), 6-22 Electronic Spark Timing (EST) system, 6-22 Emissions and engine control systems, 6-1 through 6-28 Air Injection Reaction (AIR) system (Cadillac models), 6-23 Camshaft Position (CMP) sensor, check and replacement, 6-17 catalytic converter, 6-28 Crankshaft position (CKP) sensor (Buick and Oldsmobile models), check and replacement, 6-16 Early Fuel Evaporation (EFE) system (Cadillac models), 6-24 Electronic Control Module (ECM), general information and replacement, 6-10 Electronic Spark Control (ESC) system (Buick and Oldsmobile models), 6-22

Electronic Spark Timing (EST) system, 6-22 Engine Coolant Temperature (ECT) sensor, check and

replacement, 6-15

V6 engine, 2A-1 through 2A-18 crankshaft front oil seal, replacement, 2A-10 cylinder heads, removal and installation, 2A-9 driveplate, removal and installation, 2A-15 exhaust manifolds, removal and installation, 2A-8 intake manifold, removal and installation, 2A-7 mounts, check and replacement, 2A-17 oil pan, removal and installation, 2A-13 oil pump, removal, inspection and installation, 2A-14 rear main oil seal, replacement, 2A-15

repair operations possible with the engine in the vehicle, 2A-3 rocker arms and pushrods, removal, inspection and installation, 2A-4

timing chain, removal and installation, 2A-11 Top Dead Center (TDC) for number one piston, locating, 2A-3 valve covers, removal and installation, 2A-3 valve springs, retainers and seals, replacement, 2A-5 V8 engines, 2B-1 through 2B-16 crankshaft front oil seal, replacement, 2B-10 cylinder heads, removal and installation, 2B-8 driveplate, removal and installation, 2B-14

IND-4 a

RS

Index

SS

SS

2

TET

AT

SE

ES

mounts, check and replacement, 2B-15 oil pan, removal and installation, 2B-13 oil pump, removal, inspection and installation, 2B-14

rear main oil seal, replacement, 2B-15

General engine overhaul procedures, 2C-1 through 2C-26 balance shaft (V6 engine) inspection and removal, 2C-11 installation, 2C-25

V8 engines, 2B-7 check, 1-20 servicing, general information, 4-16

F Fender, front, removal and installation, 11-8 Filling and painting, 11-3 Fluid level checks, 1-8

LEED

ELELEE

general information, 4-10

cleaning, 2C-14

Exhaust system

ELE

fuel level sending unit, check and replacement, 4-7 lines and fittings, repair and replacement, 4-5 Multi Port Fuel Injection (MPFI), component replacement, 4-13 pressure relief procedure, 4-3 pump, removal and installation, 4-7 pump/fuel pressure, check, 4-3 tank cleaning and repair, general information, 4-6 removal and installation, 4-6 Throttle Body Injection (TBI), component replacement, 4-12 throttle body, removal and installation, 4-11

block

Evaporative Emission Control System (EECS), 6-28 Exhaust Gas Recirculation (EGR) system, 6-27 Exhaust Gas Recirculation (EGR) system check, 1-26 Exhaust manifolds, removal and installation V6 engine, 2A-8

EGE

fuel injection system adjustments, 4-15 check, 4-10

valve spring, retainer and seals, replacement, 2B-5

piston/connecting rod assembly inspection, 2C-17 installation and rod bearing oil clearance check, 2C-23 removal, 2C-13 rear main oil seal installation, 2C-22 vacuum gauge diagnostic check, 2C-5 valves, servicing, 2C-11

EEE

filter replacement, 1-23

valve covers, removal and installation, 2B-3

piston rings, installation, 2C-21

ETE

air cleaner assembly, removal and installation, 4-9 exhaust system servicing, general information, 4-16

timing chain, removal, inspection and installation, 2B-11 Top Dead Center (TDC) for number one piston, locating, 2B-3

cylinder honing, 2C-16 engine overhaul disassembly sequence, 2C-9 reassembly sequence, 2C-20 engine rebuilding alternatives, 2C-6 engine removal, methods and precautions, 2C-7 engine, removal and installation, 2C-7 initial start-up and break-in after overhaul, 2C-25 main and connecting rod bearings, inspection and selection, 2C-18 oil pressure check, 2C-5

LL

accelerator cable, removal and installation, 4-9

installation, 2B-4

disassembly, 2C-9 reassembly, 2C-11

IS DEE ESEEL

Fuel and exhaust systems, 4-1 through 4-18

rocker arms and pushrods, removal, inspection and

inspection, 2C-15 camshaft and lifters installation, 2C-24 removal, 2C-12 camshaft, lifters and bearings, inspection, 2C-19 crankshaft inspection, 2C-18 installation and main bearing oil clearance check, 2C-22 removal, 2C-14 cylinder compression check, 2C-5 cylinder head cleaning and inspection, 2C-10

2S

automatic transaxle fluid, 1-12 battery electrolyte, 1-10 brake fluid, 1-10 engine coolant, 1-9 engine oil, 1-8 power steering fluid, 1-12 windshield washer fluid, 1-9

exhaust manifolds, removal and installation, 2B-7 general information and engine identification, 2B-2 intake manifold, removal and installation, 2B-6

repair operations possible with the engine in the vehicle, 2B-2

A

Fuel door solenoid, removal and installation, 11-15

Fuel injection system adjustments, 4-15

check, 4-10 general information, 4-10 Fuel system check, 1-22 Fuses, general information, 12-2 Fusible links, general information, 12-4

G General engine overhaul procedures, 2C-1 through 2C-26 balance shaft (V6 engine) inspection and removal, 2C-11 installation, 2C-25 block cleaning, 2C-14 inspection, 2C-15 camshaft and lifters installation, 2C-24

removal, 2C-12 camshaft, lifters and bearings, inspection, 2C-19 crankshaft inspection, 2C-18 installation and main bearing oil clearance check, 2C-22 removal, 2C-14 cylinder compression check, 2C-5 cylinder head cleaning and inspection, 2C-10 disassembly, 2C-9 reassembly, 2C-11 cylinder honing, 2C-16 engine overhaul disassembly sequence, 2C-9 reassembly sequence, 2C-20 engine rebuilding alternatives, 2C-6 engine removal, methods and precautions, 2C-7

engine, removal and installation, 2C-7 initial start-up and break-in after overhaul, 2C-25 main and connecting rod bearings, inspection and selection, 2C-18

EE,

IND-5

Index oil pressure check, 2C-5 piston rings, installation, 2C-21 piston/connecting rod assembly inspection, 2C-17 installation and rod bearing oil clearance check, 2C-23 removal, 2C-13 rear main oil seal installation, 2C-22 vacuum gauge diagnostic check, 2C-5 valves, servicing, 2C-11

Knuckle (rear), removal and installation, 10-12 Knuckle, steering, removal and installation, 10-6

L Leaf spring (rear) (Seville/Eldorado, Riviera and Toronado models), removal and installation, 10-11

H Headlight adjustment, 12-14 bulb, replacement, 12-13 door actuator (Toronado models), check and replacement, 12-14 housing, replacement, 12-15 Heater and air conditioning control assembly, removal and installation, 3-10 Heater core, replacement, 3-11 High Energy Ignition (HE!) system, component check and replacement, 5-6 Hinges and locks, maintenance, 11-3

Hood latch and release cable, removal and installation, 11-7 removal, installation and adjustment, 11-6 support struts, replacement, 11-6 Horn, check and replacement, 12-18

M Main and connecting rod bearings, inspection and selection, 2C-18 Maintenance schedule, 1-7

Maintenance techniques, tools and working facilities, 0-7 Manifold Absolute Pressure (MAP) sensor (Cadillac models), check and replacement, 6-14

Mass Airflow (MAF) sensor (Buick and Oldsmobile models), check and replacement, 6-13 Master cylinder, removal and installation, 9-19 Mounts, engine, check and replacement

V6 engine, 2A-17 V8 engines, 2B-15 Multi Port Fuel Injection (MPFI) system, component replacement, 4-13

Hub and wheel bearing assembly, removal and installation front, 10-7 rear, 10-12

Idle Air Control (IAC) valve (Buick and Oldsmobile models), check and replacement, 6-20

Idle Speed Control (ISC) motor (Cadillac models), check and replacement, 6-21 Ignition switch and key lock cylinder, check and replacement, 12-9 timing check and adjustment (Cadillac models only), 1-28 Ignition system check, 5-4 general information, 5-3 Initial start-up and break-in after overhaul, 2C-25 Instrument cluster, removal and installation, 12-11 Instrument panel gauges, check, 12-11 switches, check and replacement, 12-10 upper trim pad (Deville/Fleetwood models), removal and installation, 11-17 Intake Air Temperature (IAT) sensor, check and replacement, 6-15: Intake manifold, removal and installation

V6 engine, 2A-7 V8 engines, 2B-6 Introduction to the Cadillac Eldorado, Seville, Deville and Fleetwood, Oldsmobile Toronado, and Buick Riviera frontwheel drive models, 0-4

J Jacking and towing, 0-13

O Oil life indicator lamp, resetting, 1-29 Oil pan, removal and installation V6 engine, 2A-13 V8 engines, 2B-13 Oil pressure check, 2C-5 Oil pump, removal, inspection and installation V6 engine, 2A-14 V8 engines, 2B-14 On Board Diagnosis (OBD) system and trouble codes, 6-2 Outside mirrors, removal and installation, 11-14 Oxygen sensor (O2S), check and replacement, 6-18

Pp Park/lock cable (floor shift models), removal and installation, 7-6 Park/Neutral switch check, 1-18 Park/Neutral switch, check, replacement and adjustment, 7-7 Parking brake adjustment, 9-22 cables, replacement, 9-22 Piston rings, installation, 2C-21 Piston/connecting rod assembly inspection, 2C-17 installation and rod bearing oil clearance check, 2C-23 removal, 2C-13

Positive Crankcase Ventilation (PCV) system, 6-26 Positive Crankcase Ventilation (PCV) valve check and replacement, 1-26 Power brake booster, check, removal and installation, 9-20 Power steering fluid level check, 1-12 pump, removal and installation, 10-21

system, bleeding, 10-22 Power Steering Pressure (PSP) switch, check and replacement, 6-18

IND-6

Index

R

hub and wheel bearing assembly, removal and installation front, 10-7 rear, 10-12

Radiator and coolant reservoir, removal and installation, 3-5

knuckle (rear), removal and installation, 10-12 leaf spring (rear) (Seville/Eldorado, Riviera and Toronado models), removal and installation, 10-11 rear suspension adjustment link (Deville/Fleetwood models), removal and installation, 10-15

Radiator grille, removal and installation, 11-6 Radio and speakers, removal and installation, 12-11 Rear main oil seal installation (during overhaul), 2C-22

replacement (in vehicle) V6 engine, 2A-15 V8 engines, 2B-15 Rear suspension adjustment link (Deville/Fleetwood models),

stabilizer bar, removal and installation front, 10-8 rear, 10-14

steering knuckle, removal and installation, 10-6 strut assembly (rear), removal and installation, 10-10 strut or coil spring (front), replacement, 10-5 strut/coil spring assembly (front), removal, inspection and

removal and installation, 10-15

Relays, general information and testing, 12-4 Repair operations possible with the engine in the vehicle V6 engine, 2A-3 : V8 engines, 2B-2 Rocker arms and pushrods, removal, inspection and installation V6 engine, 2A-4 V8 engines, 2B-4

Ss

installation, 10-4

suspension level control systems, general information, 10-15

T Tank, fuel

Safety first!, 0-16 Seat belt check, 1-14 Seats, removal and installation, 11-18

SERVICE ENGINE SOON light, 6-2 Shift cable, replacement and adjustment, 7-4 Shift lever (floor shift models), removal and installation, 7-3 Side view mirrors, electric, description and check, 12-21 Spark plug replacement, 1-26 wire check and replacement, 1-28

Stabilizer bar, removal and installation front, 10-8 rear, 10-14 Starter motor and circuit, check, 5-11

removal and installation, 5-12 solenoid, removal and installation, 5-12

Starting system, general information and precautions, 5-10 Steering column switches, check and replacement, 12-6 Steering system alignment, general information, 10-23 gear boots, replacement, 10-18 gear, removal and installation, 10-18 power steering removal and installation, 10-21 system, bleeding, 10-22

steering wheel, removal and installation, 10-15 tie-rod ends, removal and installation, 10-17 tilt/telescopic steering column, repair, 10-19 wheel studs, replacement, 10-22

wheels and tires, general information, 10-22 Steering, suspension and driveaxle boot check, 1-19 Strut assembly (rear), removal and installation, 10-10 Strut or coil spring (front), replacement, 10-5 Strut/coil spring assembly (front), removal, inspection and installation, 10-4 Sunroof, electric, description and check, 12-22 Suspension and steering systems, 10-1 through 10-24 Suspension system balljoints, check and replacement, 10-9

coil spring (rear) (Deville/Fleetwood models), removal and installation, 10-114 control arm, removal and installation front, 10-8 rear, 10-13

cleaning and repair, general information, 4-6 removal and installation, 4-6 Thermostat, check and replacement, 3-3 Thermostatic Air Cleaner (THERMAC) system (Cadillac models), 6-25 Throttle Body Injection (TBI), component replacement, 4-12 Throttle body, removal and installation, 4-11 Throttle Position Sensor (TPS), check, replacement and adjustment, 6-12

Throttle valve cable (1986 through 1990 models), replacement and adjustment, 7-5 Tie-rod ends, removal and installation, 10-17 Tilt/telescopic steering column, repair, 10-19 Timing chain, removal, inspection and installation V6 engine, 2A-11 V8 engines, 2B-11 Tire and tire pressure checks, 1-10 Tire rotation, 1-18 Tools, 0-9 Top Dead Center (TDC) for number one piston, locating

V6 engine, 2A-3 V8 engines, 2B-3 Transaxle, automatic, 7-1 through 7-10 auxiliary oil cooler, removal and installation, 7-9 brake/transaxle shift interlock system, description, check and adjustment, 7-6 diagnosis, general, 7-3 driveaxle oil seals, replacement, 7-8 fluid and filter change, 1-23 fluid level check, 1-12 park/lock cable (floor shift models), removal and installation, 7-6

park/neutral switch, check, replacement and adjustment, 7-7 removal and installation, 7-9

shift cable, replacement and adjustment, 7-4 shift lever (floor shift models), removal and installation, 7-3 throttle valve cable (1986 through 1990 models), replacement and

adjustment, 7-5 Trouble codes, obtaining, 6-5 Troubleshooting, 0-17 Trunk lid latch striker and lock cylinder, removal and installation, 11-15 release actuator and pull-down unit, removal and installation, 11-15

removal, installation and adjustment, 11-14

Tune-up and routine maintenance, 1-1 through 1-30 Tune-up general information, 1-8

IND-7

Index Turn signal/hazard flasher, check and replacement, 12-5

oil pan, removal and installation, 2B-13 oil pump, removal, inspection and installation, 2B-14 rear main oil seal, replacement, 2B-15 repair operations possible with the engine in the vehicle, 2B-2 rocker arms and pushrods, removal, inspection and

U

installation, 2B-4

Underhood hose check and replacement, 1-17 Upholstery and carpets, maintenance, 11-2

timing chain, removal, inspection and installation, 2B-11 Top Dead Center (TDC) for number one piston, beds. 2B-3 valve covers, removal and installation, 2B-3 Vacuum gauge diagnostic check, 2C-5 Vacuum modulator, check and replacement, 7-8

V V6 engine, 2A-1 through 2A-18 crankshaft front oil seal, replacement, 2A-10 cyiinder heads, removal and installation, 2A-9 driveplate, removal and installation, 2A-15 exhaust manifolds, removal and installation, 2A-8

intake manifold, removal and installation, 2A-7 mounts, check and replacement, 2A-17 oil pan, removal and installation, 2A-13 oil pump, removal, inspection and installation, 2A-14

Valve covers, removal and installation V6 engine, 2A-3

V8 engines, 2B-3 Valve spring, retainer and seals, replacement V6 engine, 2A-5 V8 engines, 2B-5 Valves, servicing, 2C-11 Vehicle identification numbers, 0-5 Vehicle Speed Sensor (VSS), check and replacement, 6-19 Vinyl trim, maintenance, 11-1

rear main oil seal, replacement, 2A-15

repair operations possible with the engine in the vehicle, 2A-3 rocker arms and pushrods, removal, inspection and installation, 2A-4 timing chain, removal and installation, 2A-11 Top Dead Center (TDC) for number one piston, locating, 2A-3 valve covers, removal and installation, 2A-3

valve springs, retainers and seals, replacement, 2A-5 V8 engines, 2B-1 through 2B-16 crankshaft front oil seal, replacement, 2B-10 cylinder heads, removal and installation, 2B-8 driveplate, removal and installation, 2B-14 exhaust manifolds, removal and installation, 2B-7 generai information and engine identification, 2B-2 intake manifold, removal and installation, 2B-6 mounts, check and replacement, 2B-15

W Water pump, check and replacement, 3-6 Wheel cylinder, removal and installation, 9-18 Wheel studs, replacement, 10-22 Wheels and tires, general information, 10-22 Window defogger (rear) and heated windshield, check and repair, 12-18 Window system, power, description and check, 12-20 Windshield and fixed glass, replacement, 11-3 Wiper blade inspection and replacement, 1-14 Wiper motor, check and replacement, 12-17 Wiring diagrams, general information, 12-23 Working facilities, 0-12

Haynes Automotive Manuals NOTE: New manuals are added to this list on a periodic basis. If you do not see a listing for your vehicle, consult your local Haynes dealer for the latest product information.

Jeep CJ - see JEEP (50020) Concord/Homet/Gremlin/Spirit '70 thru '83 (Renault) Alliance & Encore '83 thru '87

14020 14025

4000 all models ’80 thru '87 5000 all models '77 thru ’83 5000 all models '84 thru '88

AUSTIN Healey Sprite - see MG Midget (66015)

BMW 3/5 Series '82 thru '92

*18020 *18021 18025 18035 18050

3 Series except 325iX models '92 thru ’97

320i all 4 cyl models '75 thru '83 528i & 530i all models '75 thru '80 1500 thru 2002 except Turbo ’59 thru '77

BUICK Century (FWD) - see GM (38005) Buick, Oldsmobile & Pontiac Full-size (Front wheel drive) 85 thru '98 Buick Electra, LeSabre and Park Avenue; Oldsmobile Delta 88 Royale, Ninety Eight and Regency; Pontiac Bonneville Buick Oldsmobile & Pontiac Full-size (Rear wheel drive) Buick Estate '70 thru '90, Electra’70 thru ’84, LeSabre ’70 thru '85, Limited '74 thru '79

*19020

19025

Oldsmobile Custom Cruiser ’70 thru ’90,

Delta 88 '70 thru '85,Ninety-eight '70 thru '84 Pontiac Bonneville '70 thru '81,

Catalina ’70 thru ’81, Grandville '70 thru '75, Parisienne '83 thru ’86 Mid-size Regal & Century '74 thru '87

‘ 19030

Regal - see GENERAL MOTORS (38010) Skyhawk - see GM (38030) Skylark - see GM (38020, 38025) Somerset - see GENERAL MOTORS (38025)

CADILLAC *21030

Cadillac Rear Wheel Drive '70 thru ’93 Cimarron, Eldorado & Seville - see

GM (38015, 38030)

CHEVROLET 10305 *24010 24015 24016

Chevrolet Engine Overhaul Manual Astro & GMC Safari Mini-vans ’85 thru '93 Camaro V8 all models ’70 thru '81 Camaro all models ’82 thru ’92 Cavalier - see GM (38075) Celebrity - see GM (38005) Camaro & Firebird ‘93 thru ‘97

24017 24020 24024

Chevelle, Malibu, El Camino ’69 thru '87 Chevette & Pontiac T1000 '76 thru '87 Citation - see GENERAL MOTORS (38020) Corsica/Beretta all models ’87 thru ’96 Corvette all V8 models ’68 thru ’82 Corvette all models ’84 thru '96 Full-size Sedans Caprice, Impala, Biscayne, Bel Air & Wagons ’69 thru ’90 Impala SS & Caprice and Buick Roadmaster '91 thru '96

*24032 24040 *24041 24045 24046

Lumina ’90 thru ’94 - see GM (38010) Lumina & Monte Carlo '95 thru '98

24048

Lumina APV - see GM (38038) Luv Pick-up all 2WD & 4WD '72 thru '82 Monte Carlo all models '70 thru ’88 Monte Carlo '95 thru ’98 - see LUMINA Nova all V8 models '69 thru ’79 Nova/Geo Prizm ’85 thru ’92

24050 24055 24059 *24060 24064

Pick-ups ’67 thru ’87 - Chevrolet & GMC,

all V8 & in-line 6 cyl, 2WD & 4WD '67 thru '87; Suburbans, Blazers & Jimmys ’67 thru ’91 Pick-ups ’88 thru ’98 - Chevrolet & GMC, all full-size models ’88 thru ’98; Blazer & Jimmy '92 thru '94; Suburban ’92 thru '98; Tahoe & Yukon ’95 thru '98

*24065

S-10 & GMC S-15 Pick-ups '82 thru '93 S-10, Gmc S-15 & Jimmy ‘94 thru ‘96 Sprint & Geo Metro '85 thru '94 Vans - Chevrolet & GMC ’68 thru '96

*24070 24071 *24075 *24080

CHRYSLER 10310 "25015

Chrysler Engine Overhaul Manual Chrysler Cirrus, Dodge Stratus, Plymouth Breeze, ‘95 thru ‘98

*25020

Full-size Front-Wheel Drive '88 thru '93 K-Cars - see DODGE Aries (30008) Laser - see DODGE Daytona (30030) Chrysler LHS, Concorde & New Yorker, Dodge Intrepid, Eagle Vision, ‘93 thru ‘97 Chrysler/Plym. Mid-size ’82 thru '95 Rear-wheel Drive - see DODGE (30050)

25025 *25030

DATSUN

28016 28018 28020 28022

28025

30010 *30011 30012

30016

AUDI 15020 15025 15026

28005 28007 28009 28012 28014

*30008

200SxX all models '80 thru '83 B-210 all models '73 thru '78 210 all models '78 thru '82 240Z, 260Z & 280Z Coupe ’70 thru '78 280ZX Coupe & 2+2 '79 thru '83 300ZX - see NISSAN (72010) 310 all models '78 thru '82 510 & PL521 Pick-up '68 thru '73 510 all models '78 thru '81 620 Series Pick-up all models '73 thru '79 720 Series Pick-up - NISSAN (72030) 810/Maxima all gas models, '77 thru '84

*30020 30025

*30030 *30034 *30035 30040 *30041 *30045

Caravan & Ply. Voyager '84 thru '95 Caravan & Ply. Voyager '96 thru '98 Challenger/Plymouth Saporro '78 thru '83 Challenger ’67-'76 - see DART (30025)

Colt/Plymouth Champ '78 thru '87 Dakota Pick-ups all models ’87 thru '96 Dart, Challenger/Plymouth Barracuda

& Valiant 6 cyl models ’67 thru '76 Daytona & Chrysler Laser '84 thru '89 Intrepid - see Chrysler (25025) Dodge & Plymouth Neon '95 thru '97 Omni & Plymouth Horizon ’78 thru '90

Pick-ups all full-size models '74 thru 93 Pick-ups all full-size models ‘94 thru ’96

Ram 50/D50 Pick-ups & Raider and Dodge/Ply./Chrysler RWD '71 thru ’89 Shadow/Plymouth Sundance ’87 thru '94 Spirit & Plymouth Acclaim ’89 thru ’95 Vans - Dodge & Plymouth '71 thru 96

EAGLE Talon - see MITSUBISHI Eclipse (68030) Vision - see CHRYSLER (25025)

FIAT 34010 34025

124 Sport Coupe & Spider ’68 thru '78 X1/9 all models '74 thru '80

10355 10320 *36004

Ford Automatic Transmission Overhaul Ford Engine Overhaul Manual Aerostar Mini-vans ’86 thru ’96 Aspire - see FORD Festiva (36030) *36006 Contour/Mercury Mystique '95 thru '98 36008 Courier Pick-up all models '72 thru ’82 76912 Crown Victoria & Mercury Grand Marquis ’88 thru ’96 Escort/Mercury Lynx '81 thru '90 “scort/Mercury Tracer ‘91 thru '96 «edition - see FORD Pick-up (36059) * iorer & Mazda Navajo '91 thru '95 + rmont & Mercury Zephyr ’78 thru ’83 stiva & Aspire '88 thru '97 3ta all models ’77 thru ’80 wooed 6030 rerd & Mercury Full-size, Ford LTD & Mercury Marquis (’75 thru '82); Ford Custom 500,Country Squire, Crown Victoria & Mercury Colony Park ('75 thru '87); Ford LTD Crown Victoria & Mercury Gran Marquis ('83 thru '87) 36040 Granada & Mercury Monarch '75 thru ’80

Ford & Mercury Mid-size, — Ford Thunderbird & Mercury Cougar (’75 thru ’82);

Pinto & Mercury Bobcat '75 thru ’80 Probe all models ’89 thru ’92

36070 Ranger/Bronco Il gas models '83 thru '92 ‘36071 Ford Ranger ‘93 thru ‘97 & jazda Pick-ups ‘94 thru ‘97

36074

36075 *36078 36082 *36086 36090

*36094 *36097

Taurus & Mercury Sable '86 thru’

5

Taurus & Mercury Sable ’96* 8 Tempo & Mercury Topaz ’* 34 Thunderbird/Mercury Co: ru ’88 Thunderbird/Mercury C nd '97 Vans all V8 Econo! ne nu '91 Vans fullsize’® ort Windstar Mi an’: 3

GENERAL MOTOF *10360

GM

Automatic Tran

.ission Overhaul

*38005

Buick Century, Che olet Celebrity, Olds Cutlass Ciera * Pontiac 5000 all models '82 th: ‘26 *38010 Buick Regal, Cvevrolet Lumina, idsmobile Cut. ass Supreme & Pontiac rand Prix fron. wheel drive ’88 thru ’95 *3 Buick Skyhawk, Cadillac Cimarron, _ Chevrolet Cavalier, Oldsmobile Firenza _ Pontiac J-2000 & Sunbird '82 thru '94 5 6 Chevrolet Cavalier & Pontiac Sunfire ’95 thru '98 38020 Buick Skylark, Chevrolet Citation, Olds Omega, Pontiac Phoenix ‘80 thru '85 38025 Buick Skylark & Somerset, Olds Achieva, Calais & Pontiac Grand Am '85 thru '95 38030 Cadillac Eldorado & Oldsmobile Toronado '71 thru '85, Seville '80 thru '85, Buick Riviera '79 thru '85 *38035 Chevrolet Lumina APV, Oldsmobile Silhouette & Pontiac Trans Sport '90 thru '95 General Motors Full-size Rear-wheel Drive - see BUICK (19025)

GEO

*40030

Metro - see CHEVROLET Sprint (24075) Prizm - see CHEVROLET (24060) or TOYOTA (92036) Storm all models '90 thru '93 Tracker - see SUZUKI Samurai (90010)

Accord CVCC all models '76 thru '83 Accord all models '84 thru '89 Accord all models ’90 thru ’93 Accord all models '94 thru '95 Civic 1200 all models '73 thru '79 Civic 1300 & 1500 CVCC ’80 thru '83 Civic 1500 CVCC all models '75 thru '79 Civic all models '84 thru '91 Civic & del Sol ’92 thru '95

Passport - see /SUZU Rodeo (47017) *42040

Prelude CVCC all models ’79 thru ’89

HYUNDAI *43015 Excel all models '86 thru '94 ISUZU

*87010

89002 *89003

TOYOTA 92005 *92006 92015 *92020 92025 92030 92032

Hombre - see CHEVROLET S-10 (24071) Rodeo ’91 thru '97, Amigo ’89 thru ’94, Honda Passport ’95 thru ’97 Trooper ’84 thru 91, Pick-up 81 thru '93

*92035 *92036 92040 92045 92050

XJ6 all 6 cyl models ’68 thru ’86 XJ6 all models '88 thru '94 XJ12 & XJS all 12 cyl models ’72 thru '85

*92056

*49010 *49011 *49015

50020 *50025 *50029 *50030

Cherokee, Comanche & Wagoneer Limited all models ’84 thru ’96 CJ all models ’49 thru ’86 Grand Cherokee all models '93 thru ’98 Grand Wagoneer & Pick-up ’72 thru ’91 Wrangler all models ’87 thru '95

*92080 92085

LINCOLN Navigator - see FORD Pick-up (36059) 59010 Rear Wheel Drive all models '70 thru '96 GLC (rear wheel drive) '77 thru '83

61011

GLC (front wheel drive) '81 thru ’85

*61015 *61016 *61020 61030

61040

96035 96040

RX-7 all models ’79 thru ’85 RX-7 all models ’86 thru '91

96045

626 (rear wheel drive) '79 thru ’82

VOLVO

626 & MX-6 (front wheel drive) '83 thru '91

97010 97015 *97020 97025 *97040

MERCEDES-BENZ 63012 *63015 63020 63025 63030

123 190 230, 280 350

Series Diesel '76 thru '85 Series 4-cyl gas models, ’84 thru ’88 250 & 280 6 cyl sohc '68 thru ‘72 123 Series gas models '77 thru ’81 & 450 all models '71 thru ’80

MERCURY See FORD Listing

MG 66010 66015

MGB Roadster & GT Coupe ’62 thru ’80 MG Midget & Austin Healey Sprite Roadster ’58 thru '80

MITSUBISHI *68020

*68030

*68040

4

Cordia, Tredia, Galant, Prec Mirage ’82 thru '93 Eclipse, Eagle Talo Plymouth Le-e*’ 9 thru ’

Pick-up

», Montero’

wi

} 1B

2020

12000 72040 72050 *72051 *72060

TR7 all models ’75 thru ’81

96020 96030

Pick-ups '72 thru 93 Pick-ups '94 on - see Ford (36071)

61035 *61036

Spitfire all models '62 thru '81

94010

*96017

Navajo - see FORD Explorer (36024)

a. wth

Maxii)

Pick-tr

ts inc! Surbo '84 thru’89 als qru ’9 8% thru ’9’ 4

de’.

.

—. « u’96, Pathfinder ’87 thru '95

Pulsa, uil mor als '83 thru’ 4 —_ Sentraallmeo els '82 thru ’9 Sentra & 20€ iX all models '95 thru ’98 Stanza ali models '82 thru ’90

all models ’83 thru ’91 all models ’92 thru ’96 Rear Wheel Drive ’71 thru ’85 Front Wheel Drive ’86 thru '93 Supra all models '79 thru '92 all models ’75 thru ’79 rear wheel drive models '80 thru ’87 Corolla front wheel drive models ’84 thru ’92 Corolla & Geo Prizm ’93 thru '97 Corolla Tercel all models ’80 thru ’82 Corona all models '74 thru ’82 Cressida all models ’78 thru '82 Land Cruiser Series FJ40, 43, 45 & 55 "68 thru ’82 Land Cruiser Series FJ60, 62, 80 & FZJ80 ’68 thru ’82 MR2 all models ’85 thru ’87 Pick-up all models '69 thru ’78 Pick-up all models '79 thru '95 Tacoma 95 thru '98, 4Runner '96 thru 98, T100 '93 thru 98 Previa all models ’91 thru ’95 Tercel all models ’87 thru ’94

94007

*96016

323 & Protegé '90 thru 97 MX-5 Miata '90 thru ’97 MPV all models '89 thru 94

Camry Camry Celica Celica Celica Corolla Corolla

TRIUMPH

Vw 96008 96012

MAZDA 61010

92055

*92065 92070 - *92075 *92076

JEEP

1100, 1300, 1400 & 1600 '71 thru ’79 1600 & 1800 2WD & 4WD '80 thru ’94

SUZUKI *90010 Samurai/Sidekick/Geo Tracker '86 thru ’96

*47020

JAGUAR

Saturn all models '91 thru '96

SUBARU

*47017

*61041

Ford LTD & Mercury Mere ('83 thru ’86); Ford Torino,Gran Torino, Elite, Ranchero ick-up, LTD Il, Mercury Montego, Comet, 2 R-7 & Lincoln Versailles (75 thru '86) 36048 Mustang V8 all models '64-1/2 thru ’73 36049 Mustang II 4 cyl, V6 & V8 '74 thru '78 36050 Mustang & Mercury Capri incl. Turbo Mustang, '79 thru '93; Capri, '79 thru ’86 *36051 Mustang all models ’94 thru ’97 36054 Pick-ups and Bronco ’73 thru '79 *36058 Pick-ups and Bronco ’80 thru ’96 *36059 Pick-ups, Expedition & Lincoln Navigator '97 thru '98

36062 36066

42010 42011 42012 *42013 42020 42021 42022 42023 42024

900 including Turbo ’79 thru ’88

SATURN

HONDA

*60010

FORD

36044

Safari - see CHEVROLET ASTRO (24010) Vans & Pick-ups - see CHEVROLET

400 & 600 - see CHRYSLER (25030) Aries &Plymouth Reliant '81 thru '89

Plymouth Arrow Pick-ups '79 thru '93

30050 *30055 *30060 *30065

SAAB *84010

GMC

DODGE Integra '86 thru '89 & Legend '86 thru 90

Beetle & Karmann Ghia '54 thru '79 Dasher all gasoline models '74 thru ’81 Rabbit, Jetta, Scirocco, & Pick-up gas models ’74 thru ’91 & Convertible ’80 thru ’92 Golf & Jetta '93 thru '97 Rabbit, Jetta, Pick-up diesel ’77 thru 84 Transporter 1600 all models ’68 thru ’79 Transporter 1700, 1800, 2000 ’72 thru ’79 Type 3 1500 & 1600 ’63 thru ’73 Vanagon air-cooled models ’80 thru ’83

120, 140 240 260 740

TECHBOOK

130 Series & 1800 Sports '61 thru '73 Series all models ’66 thru '74 Series all models '76 thru '93 Series all models '75 thru '82 & 760 Series all models '82 thru ’88 MANUALS

10205 10210 10215 10220 10225 10230

Automotive Computer Codes Automotive Emissions Control Manual Fuel Injection Manual, 1978 thru 1985 Fuel Injection Manual, 1986 thru 1996 Holley Carburetor Manual Rochester Carburetor Manual

10240

Weber/Zenith/Stromberg/SU Carburetor

10305 10310 10320 10330 10340 10345 10355 10360 10405 10410 10415 10420 10425 10430 10435 10440 10445 10450

Chevrolet Engine Overhaul Manual Chrysler Engine Overhaul Manual Ford Engine Overhaul Manual GM and Ford Diesel Engine Repair Small Engine Repair Manual Suspension, Steering & Driveline Ford Automatic Transmission Overhaul GM Automatic Transmission Overhaul Automotive Body Repair & Painting Automotive Brake Manual Automotive Detaiing Manual Automotive Eelectricai Manual Automotive Heating & Air Conditioning Automotive Reference Dictionary Automotive Tools Manual Used Car Buying Guide Welding Manual ATV Basics

OLDSMOBILE *73015

Cutlass For ot!

u’88 MOBILE titles, see

BUICH

7OLET

GENE

TORS listing.

PLYMOUT! For

or

{ titles, see DODGE.

PONTIAC 79008 79018 79019

Fier. Fire! Fir Fo BU GE

:'84 thru ’88 als except Turbo '70 thru '81 els '82 thru '92 IAC titles, see — OLET or ORS listing.

PORSCHE *80020

911 Coupe & Targa models 65 thru '89

80025 80030 *80035

914 all 4 cyl models ’69 thru '76 924 all models incl. Turbo '76 thru '82 944 all models incl. Turbo '83 thru '89

RENAULT

SPANISH 98903 98905 98910 98915 99040 99041 99042 99055 99075 99077 99083 99088 99091 99095 99100 99110

99118 99125

MANUALS

Reparacién de Carroceria & Pintura Cédigos Automotrices de la Computadora Frenos Automotriz Inyeccién de Combustible 1986 al 1994 Chevrolet & GMC Camionetas '67 al '87 Chevrolet & GMC Camionetas '88 al '95 Chevrolet Camionetas Cerradas ‘68 al ‘95 Dodge Caravan/Ply. Voyager '84 al ’95 Ford Camionetas y Bronco ’80 al 94 Ford Camionetas Cerradas ‘69 al ‘91 Ford Modelos de Tamajfio Grande ‘75 al '87 Ford Modelos de Tamafio Mediano ‘75 al ‘86 Ford Taurus & Mercury Sable ‘75 al ‘86 GM Modelos de Tamafio Grande ‘70 al ‘90 GM Modelos de Tamafio Mediano ‘70 al ‘88 Nissan Camionetas ‘80 al ‘96, Pathfinder ‘87 al ‘95 Nissan Sentra '82 al '94 Toyota Camionetas y 4-Runner '79 al '95

.

Alliance, Encore - see AMC dy

* Listings shown with an asterisk (“) indicate model coverage as of this printing. These titles will be periodically... Yam , updated to include later model years - consult your Haynes dealer for more information. Hy

a ae,

Nearly 100 Haynes motorcycle manuals also available

Haynes North America, Inc., 861 Lawrence Drive, Newbury P ark, CA 91320 « (805) 498-6703

5-98

eh),

ese? FoR

ie

ey)

eee

eS

‘Common spark plug conditions ‘NORMAL Symptoms: Brown to grayish-tan color and slight electrode wear. Correct heat range for engine and operating conditions. Recommendation: When new spark plugs are installed, replace with plugs of the same heat range.

a,

|

WORN Symptoms: Rounded electrodes with a small amount of deposits on

the firing end. Normal color. Causes hard starting in damp or cold weather and poor fuel economy. Recommendation: Plugs have been left in the engine too long. Replace with new plugs of the same heat range. Follow the recommended maintenance schedule.

CARBON

ASH DEPOSITS Symptoms: Light brown deposits encrusted on the side or center electrodes or both. Derived from oil and/or fuel additives. Excessive amounts may mask the spark, causing misfiring and hesitation during acceleration. Recommendation: _ |f excessive deposits accumulate over a short time or low mileage, install new valve guide seals to prevent seep-

age of oil into the combustion chambers. Also try changing gasoline brands.

7

Blistered, white insu-

lator, eroded electrode absence of deposits. Results

in —

shortened plug life.

4

Recommendation: Check for the — correct plug heat range, overadvanced ignition timing, lean fuel mixture, intake manifold vacuum —

leaks, sticking valves and insuffi-

cient engine cooling.

Symptoms:

Melted

electrodes.

Oily coating

caused

Oil is leaking

past worn valve guides or piston rings into the combustion chamber. Causes hard starting, misfiring and hesitation. Recommendation: Correct the

dirty due to misfiring or flying debris in the combustion chamber. Can lead to engine damage.

Recommendation: correct plug heat advanced

;

ignition timing, lean fuel

and lack of lubrication.

HIGH SPEED GLAZING Symptoms: Insulator has yellowish, glazed appearance. Indicates that combustion chamber temper-

atures have risen suddenly during hard acceleration. Normal deposits —

melt to form a conductive coating. a

Causes misfiring athigh speeds. Recommendation: Install new plugs. Consider using acolder plug if driving habits warrant.

DETONATION setting techniques can also result in a fractured insulator tip. Can lead to piston damage. Recommendation: Make sure the fuel anti-knock values meet engine requirements.

Use care when

set-

ting the gaps on new plugs. Avoid lugging the engine.

MECHANICAL DAMAGE foreign

Combustion

deposits

lodge between the electrodes. Heavy deposits accumulate and bridge the electrode gap. The plug ceases to fire, resulting in a dead cylinder. Recommendation: Locate the faulty plug and remove the deposits from between the electrodes

i

mixture, insufficient engine cooling

Symptoms: Symptoms:

wyf

Check for the range, over-—

mechanical condition with necessary repairs and install new plugs

GAP BRIDGING

—

Insulators are white, but may be —

Symptoms: Insulators may be cracked or chipped. Improper gap

OIL DEPOSITS by poor oil control.

Symptoms:

ie"

PREIGNITION

DEPOSITS

Symptoms: Dry sooty deposits indicate a rich mixture or weak ignition. Causes misfiring, hard starting and hesitation. Recommendation: Make sure the plug has the correct heat range. Check for a clogged air filter or problem in the fuel system or engine management system. Also check for ignition system problems

Symptoms:

:

TOO HOT

May be caused

object

by a

in the combustion

chamber or the piston striking an incorrect reach (too long) plug. Causes a dead cylinder and could result in piston damage. Recommendation: Repair the mechanical damage. Remove the

foreign

object

and/or plug.

install

from the

the

correct

engine reach

~ __

‘Routine maintenance Tune-up procedures Engine repair

Cooling and heating Air conditioning

Fuel and exhaust Emissions control Ignition

Brakes

Suspension and steering Electrical systems Wiring diagrams

Chapter 2 PartB

Engine

linked to hundreds of

oe

e

.

and illustrations

te

helps

«identify specific problems e Written from

based on a vehicle teardown using

a rcos

e Haynes tips give

val:

to

_ make the job easier and eliminate the need for special tools

°

is for the home mechanic

|

e Color «

Easy to use

ISBN 1 56392 347 5

Cadillac Eldorado & Seville - 1986 through 1991 Cadillac Deville FWD - 1986 through 1993

Cadillac Fleetwood FWD - 1986 through 1992

~~

ABCDEFGHULMNOPORST 2

||

Oldsmobile Toronado - 1986 through 1992 Buick Riviera - 1986 through 1993 0°

5835145 38031

0