1999 Chevrolet Tahoe Service Repair Manual.pdf

FULL-SHE
1988-9£r^PAIR MANUAL
Covers all U.S. and Canadian models of
Chevrolet/GMC Pick-ups, Sierra, Blazer, Tahoe,
Yukon and Suburban; 2 and 4 wheel drive
gasoline and diesel engines
ABODE
FGHI
by Thomas A Mellon, A.S.E., SAE.
Automotive
Books
PUBLISHED BY HAYNES NORTH AMERICA. Inc.
AimDMCTIVIr
S)
ASSOCIATION
Manufactured in USA
© 1996 Haynes North America,Inc.
ISBN 0-8019-9102-1
Library of Congress Catalog Card No. 98-74837
5678901234 9876543210
Haynes Publishing Group
Sparkford Nr Yeovil
Somerset BA22 7JJ England
Haynes North America, Inc
861 Lawrence Drive
Newbury Park
California 91320 USA
3N3
Chilton is a registeredtrademark of W.G. Nichols, Inc., and has been licensedto Haynes North America,Inc.

Contents
GENERAL INFORMATION
AND MAINTENANCE
1-2 HOW TO USE THIS BOOK
1-2 TOOLS AND EQUIPMENT
1-4 SERVICING YOUR VEHICLE
SAFELY
1 -5 FASTENERS,
MEASUREMENTS AND
CONVERSIONS
1-7 SERIAL NUMBER
IDENTIFICATION
1-10 ROUTINE MAINTENANCE
AND TUNE-UP
1-35 FLUIDS AND LUBRICANTS
1-46 TRAILER TOWING
1-47 JUMP STARTING A DEAD
BATTERY
1-48 JACKING
1 -50 MAINTENANCE INTERVALS
ENGINE ELECTRICAL
2-2
2-2
2-6
HIGH ENERGY IGNITION
(HEI) SYSTEM
2-7
2-8
DISTRIBUTOR IGNITION (Dl) o Q
SYSTEM
FIRING ORDERS
CHARGING SYSTEM
STARTING SYSTEM
SENDING UNITS AND
SENSORS
ENGINE AND ENGINE
OVERHAUL
3-2 ENGINE MECHANICAL
3-56 EXHAUST SYSTEM
3-58 ENGINE RECONDITIONING
4-2 GASLINE ENGINE EMISSION 4-25 DIESEL ELECTRONIC
DRIVEABILITY
AND EMISSION CONTROLS
CONTROLS
4-10 DIESEL ENGINE EMISSION
CONTROLS
4-11 CARBURETED ELECTRONIC
ENGINE CONTROLS
4-17 FUEL INJECTEDELECTRONIC
ENGINE CONTROLS
ENGINE CONTROLS
4-29 TROUBLE CODES
4-39 COMPONENT LOCATIONS
4-55 VACUUM DIAGRAMS
FUEL SYSTEM
5-2 BASIC FUEL SYSTEM
DIAGNOSIS
5-2 FUEL LINE FITTINGS
5-3 CARBURETEDFUEL SYSTEM
5-10 THROTTLE BODY INJEC-
TION (TBI)
5-14 MULTI-PORT FUEL
INJECTION (MFI)
5-19 CENTRALSEQUENTIAL FUEL
INJECTION (CSFI)
5-22 DIESEL FUEL SYSTEM
5-26 FUEL TANK
CHASSIS ELECTRICAL
6-2 UNDERSTANDING AND
TROUBLESHOOTING
ELECTRICAL SYSTEMS
6-7 BATTERY CABLES
6-7 SUPPLEMENTAL INFLATABLE
RESTRAINT (SIR) SYSTEM
6-8 HEATING AND AIR
CONDITIONING
6-12 CRUISE CONTROL
6-13 ENTERTAINMENT SYSTEMS
6-17 WINDSHIELD WIPERS AND
WASHERS
6-19 INSTRUMENTS AND
SWITCHES
6-22 LIGHTING
6-26 TRAILER WIRING
6-26 CIRCUIT PROTECTION
6-28 WIRING DIAGRAMS

Contents
7-2 MANUAL TRANSMISSION 7-9
7-4 CLUTCH 7-13
7-6 AUTOMATIC TRANSMISSION 7-16
7-8 TRANSFER CASE
7-19
8-2 WHEELS
8-4 C AND RSERIES 2WD
FRONT SUSPENSION
8-14 V-SERIES 4WDFRONT
SUSPENSION
DRIVELINE
SOLID FRONT DRIVE AXLE
INDEPENDENT FRONT
DRIVE AXLE
REAR AXLE
8-18 K-SERIES 4WDFRONT
. SUSPENSION
8-24 C3HD FRONT SUSPENSION
8-26 REAR SUSPENSION
8-30 STEERING
SUSPENSION
AND STEERING
9-2 BRAKE OPERATING SYSTEM 9-20
9-6 DISC BRAKES
9-12 DRUM BRAKES 9"25
9-18 PARKING BRAKE
FOUR WHEEL ANTI-LOCK
BRAKE SYSTEM
REAR WHEEL ANTI-LOCK
(RWAL) BRAKE SYSTEM
10-2 EXTERIOR 10-5 INTERIOR
10-15 GLOSSARY
10-19 MASTER INDEX

SAFETY NOTICE
Proper serviceand repair procedures are vital to the safe, re iable operation of all motor vehicles, as well as the personal safety of thoseper-
forming repairs. This manual outlines proceduresfor servicingand repairingvehicles using safe, effective methods. The procedures contain many
NOTES, CAUTIONS and WARNINGS which should be followed, along with standardprocedures to eliminate the possibility of personal injury or
improper servicewhich could damage the vehicle or compromise its safety.
It is important to note that repair procedures and techniquesM tools and parts for servicingmotor vehicles, as well as the skill and experience of
the individual performing the work vary widely. It is not possibles to anticipateall of the conceivable ways or conditions under which vehicles may
be serviced, or to provide cautions as to all possible hazards tti£t may result. Standard and accepted safety precautions and equipment should be
used when handling toxic or flammable fluids, and safety goggles or other protectionshould be used during cutting, grinding, chiseling,prying.
or any other process that can cause mate/ial removal or projectiles.
Some procedures require the use of tools specially designed for a
completely satisfied that neither your personal safety,nor the performance of thevehicle
specific purpose. Before substituting anothertool or procedure, you must be
will be endangered.
Although information in this manual is based on industry sojurces and is completeas possibleat the time of publication,the possibility exists
that some car manufacturersmade later changes which could,inot be includedhere. While strivingfor total accuracy, the authorsor publishers
cannot assume responsibility for any errors, changes or omissions that may occur in the compilationof this data.
PART NUMBERS
Part numbers listed in this referenceare notrecommendat
ences that can be used with interchange manuals and afterm
ons by HaynesNorth America, Inc. for any product brand name.They are refer-
rket supplier catalogsto locate each brand supplier's discrete partnumber.
SPECIAL TOOLS
Special tools are recommended by the vehicle manufacturer
absolutely necessary, they are referredto in the text by thepart
priate part number, from your local dealer or regional distributo
let. Beforesubstituting any tool for the onerecommended,
o perform their specificjob. Use has beenkept to a minimum, butwhere
lumber of the tool manufacturer. Thesetools can be purchased, under theappro-
, or an equivalenttool can be purchasedlocally from a tool supplier or parts out-
readl the SAFETY NOTICE at the top of this page.
ACKNOWLEDGMENTS
Portions of materials contained herein have been reprints Jwiththe permissionof General MotorsCorporation,ServiceTechnology Group.
All rights reserved. No part of this book may be reproduce!
ing photocopying, recording or by any information storage
or transmitted in any form or by any means, electronic or mechanical, includ-
>r retrieval system, without permission in writing from the copyright holder.
While every attempt is made to ensure that the information in this manual is correct, no liability can be accepted by the authors or pub-
lishers for loss, damage or injury caused by any errors in, or omissions from, the information given.

HOW TO USE THIS BOOK 1-2
WHERE TO BEGIN 1-2
AVOIDING TROUBLE 1-2
MAINTENANCE OR REPAIR? 1-2
AVOIDING THE MOST COMMON MISTAKES 1-2
TOOLS AND EQUIPMENT 1-2
SPECIAL TOOLS 1-4
SERVICING YOUR VEHICLE SAFELY 1-4
DO'S 1-4
DONTS 1-5
FASTENERS, MEASUREMENTS AND
CONVERSIONS 1-5
BOLTS, NUTS AND OTHER THREADED RETAINERS 1-5
TORQUE 1-6
TORQUE WRENCHES 1-6
TORQUE ANGLE METERS 1-7
STANDARD AND METRIC MEASUREMENTS 1-7
SERIAL NUMBER IDENTIFICATION 1-7
VEHICLE 1-7
ENGINE 1-7
TRANSMISSION 1-8
DRIVE AXLE 1-8
TRANSFER CASE 1-8
SERVICE PARTS IDENTIFICATION LABEL 1-10
ROUTINE MAINTENANCE AND TUNE-UP 1-10
AIR CLEANER1-10
REMOVAL & INSTALLATION 1-13
FUEL FILTER1-13
PCVVALVE 1-15
CRANKCASE DEPRESSION REGULATOR AND FLOW
CONTROL VALVE 1-16
SERVICING1-16
EVAPORATIVE CANISTER 1-16
SERVICING 1-16
BATTERY 1-16
PRECAUTIONS 1-16
GENERAL MAINTENANCE 1-16
BATTERY FLUID 1-17
CABLES 1-17
CHARGING 1-18
REPLACEMENT 1-18
BELTS1-18
INSPECTION 1-18
ADJUSTMENT 1-18
BELT ROUTING1-20
HOSES 1-23
INSPECTION 1-23
CV-BOOTS1-24
INSPECTION 1-24
SPARKPLUGS1-25
SPARK PLUG HEAT RANGE 1-25
INSPECTION & GAPPING1-26
SPARK PLUG WIRES 1-27
TESTING 1-27
REMOVAL & INSTALLATION1-27
DISTRIBUTOR CAP AND ROTOR1-27
INSPECTION 1-28
IGNITION TIMING 1-28
GENERAL INFORMATION 1-28
CHECKING & ADJUSTMENT1-29
VALVE LASH 1-29
ADJUSTMENT 1-29
IDLE SPEED AND MIXTURE ADJUSTMENTS 1-30
CARBURETED ENGINES1-30
GASOLINE FUEL INJECTED ENGINES 1-30
DIESEL ENGINES 1-31
AIR CONDITIONING SYSTEM 1-32
SYSTEM SERVICE S REPAIR 1-32
PREVENTIVE MAINTENANCE 1-32
SYSTEM INSPECTION 1-32
WINDSHIELD WIPERS1-33
ELEMENT (REFILL) CARE & REPLACEMENT 1-33
TIRES AND WHEELS 1-33
TIRE ROTATION 1-33
TIRE DESIGN 1-34
TIRE STORAGE 1-34
INFLATIONS INSPECTION 1-34
FLUIDS AND LUBRICANTS 1-35
FLUID DISPOSAL 1-35
FUEL AND OIL RECOMMENDATIONS 1-35
OIL 1-35
FUEL1-36
ENGINE1-37
OIL LEVEL CHECK1-37
OILS FILTER CHANGE 1-37
MANUAL TRANSMISSION 1-38
FLUID RECOMMENDATION 1-38
LEVEL CHECK 1-38
DRAINS REFILL 1-39
AUTOMATIC TRANSMISSION 1-39
FLUID RECOMMENDATIONS1-39
LEVEL CHECK 1-39
DRAINS REFILL 1-39
TRANSFER CASE 1-40
FLUID RECOMMENDATIONS1-40
LEVEL CHECK1-40
DRAINS REFILL1-40
FRONT AND REAR DRIVE AXLES1-40
FLUID RECOMMENDATIONS 1-40
LEVEL CHECK1-40
DRAINS REFILL 1-41
COOLING SYSTEM1-41
LEVEL CHECK 1-42
DRAINING S FLUSHING1-42
BRAKE MASTER CYLINDER 1-42
LEVEL CHECK 1-42
CLUTCH MASTER CYLINDER1-43
LEVEL CHECK1-43
POWER STEERING PUMP1-43
FLUID RECOMMENDATION1-43
LEVEL CHECK1-43
STEERING GEAR 1-43
LEVEL CHECK1-44
CHASSIS GREASING 1-44
BODY LUBRICATION AND MAINTENANCE 1-45
LOCK CYLINDERS 1-45
HOOD LATCH S HINGES1-45
DOOR HINGES 1-45
BODY DRAIN HOLES1-46
FRONT WHEEL BEARINGS 1-46
TRAILER TOWING 1-46
GENERAL RECOMMENDATIONS 1-46
TRAILER WEIGHT1-46
HITCH (TONGUE) WEIGHT1-46
ENGINE 1-47
TRANSMISSION 1-47
HANDLING A TRAILER 1-47
JUMP STARTING A DEAD BATTERY 1-47
JUMP STARTING PRECAUTIONS 1-47
JUMP STARTING PROCEDURE 1-47
SINGLE BATTERYGASOLINE AND DIESEL ENGINE
MODELS 1-47
DUAL BATTERYDIESEL MODELS 1-48
JACKING 1-48
JACKING PRECAUTIONS 1-49
MAINTENANCE INTERVALS 1-50
GENERAL RECOMMENDATIONS1-50
BUT THE OWNER'S MANUAL IS DIFFERENT? 1-50
BUT THE REPLACEMENT PART IS
DIFFERENT?1-50
IS MY DRIVING "NORMAL" OR "SEVERE"? 1-50
COMPONENT LOCATIONS
UNDERHOOD MAINTENANCE COMPONENT
LOCATIONS—R-SERIES 1-11
UNDERHOOD MAINTENANCE COMPONENT
LOCATIONS—C-SERIES 1-12
SPECIFICATIONS CHARTS
VEHICLE IDENTIFICATION CHART 1-8
GENERAL ENGINE SPECIFICATIONS 1-9
GASOLINE TUNE-UP SPECIFICATIONS1-31
RECOMMENDED LUBRICANTS1-36
MAINTENANCE SCHEDULES 1-51
CAPACITIES1-54
GENERAL
HOW TO USE THIS BOOK 1-2
TOOLS AND EQUIPMENT 1-2
SERVICING YOUR VEHICLE SAFELY 1-4
FASTENERS, MEASUREMENTS
AND CONVERSIONS 1-5
SERIAL NUMBER IDENTIFICATION 1-7
AND TUNE-UP 1-10
FLUIDS AND LUBRICANTS 1-35
TRAILER TOWING 1-46
iTARTING A DEAD BATTERY 1-47
JACKING 1-48
MAINTENANCE INTERVALS 1-50

1-2 GENERAL INFORMATION AND MAINTENANCE
HOW TO USE THIS BOOK
This Chilton's Total Car Care manual for 1988-981/2, % and 1 ton Chevrolet
and GMC Pick-ups, Blazers,Jimmys, Tahoes, Yukons and Suburbans is
intended to help you learn more about the inner workings of your vehicle, while
saving you money on its upkeep and operation.
The beginning of the book will likely be referred to the most, since that is
where you will find information for maintenance and tune-up. The other sections
deal with the more complex systems of your vehicle. Systems (from engine
through brakes) are covered to the extent that the average do-it-yourselft r can
attempt. This book will not explain such things as rebuilding a different! I
because the expertise required and the special tools necessary make thi; uneco-
nomical. It will, however, give you detailed instructions to help you chan je your
own brake pads and shoes, replace spark plugs, and perform many morj jobs
that can save you money and help avoid expensive problems.
A secondary purpose of this book is a reference for owners who want to
understand their vehicle and/or their mechanics better.
Where to Begin
Before removing any bolts, read through the entire procedure. This will give
you the overall view of what tools and supplies will be required. So read, ahead
and plan ahead. Each operation should be approached logically and all proce-
dures thoroughly understood before attempting any work.
If repair of a component is not considered practical, we tell you howb
remove the part and then how to install the new or rebuilt replacement. l(i this
way, you at least save labor costs.
Avoiding Trouble
Many procedures in this book require you to "label and disconnect..." a
group of lines, hoses or wires. Don't be think you can remember where (very-
thing goes—you won't. If you hook up vacuum or fuel lines incorrectly,! he
vehicle may run poorly, if at all. If you hook up electricalwiring incorrec ly, you
may instantly learn a very expensive lesson.
You don't need to know the proper name for each hose or line. A pied j of
masking tape on the hose and a piece on its fitting will allow you to ass jn your
own label. As long as you remember your own code, the lines can be rel on-
nected by matching your tags. Remember that tape will dissolve in gasaine or
solvents; if a part is to be washed or cleaned, use another method of idq itifica-
tion. A permanent felt-tipped marker or a metal scribe can be very hand; for
marking metal parts. Remove any tape or paper labels after assembly.
Maintenance or Repair:
Maintenance includes routine inspections, adjustments, and replacertent of
parts which show signs of normal wear. Maintenance compensates for wsar or
deterioration. Repair implies that something has broken or is not workinji. A
need for a repair is often caused by lack of maintenance, for example: dit lining
and refilling automatic transmission fluid is maintenance recommended it spe-
cific intervals. Failure to do this can shorten the life of the transmission/
transaxle, requiring very expensive repairs. While no maintenance progm.m can
prevent items from eventually breaking or wearing out, a general rule is |rue:
MAINTENANCE IS CHEAPER THAN REPAIR.
TOOLS AND EQUIPMENT
I SeeFigures 1thru 15
Without the proper tools and equipment it is impossible to properly service
your vehicle. It would be virtually impossible to catalog every tool that you
would need to perform all of the operations in this book. It would be unwise for
the amateur to rush out and buy an expensive set of tools on the theory (hat
he/she may need one or more of them at some time.
The best approach is to proceed slowly, gathering a good quality set of
those tools that are used most frequently. Don't be misled by the low cost of
bargain tools. It is far better to spend a little more for better quality. Forged
wrenches, 6 or 12-point sockets and fine tooth ratchets are by far preferable
to their less expensive counterparts. As any good mechanic can tell yoM, there
are few worse experiences than trying to work on a vehicle with bad torjls.
Two basic mechanic's rules should be mentioned here. First, whenever the
left side of the vehicle or engine is referred to, it means the driver's side. Con-
versely, the right side of the vehicle means the passenger's side. Second, screws
and bolts are removed by turning counterclockwise, and tightened by turning
clockwise unless specifically noted.
Safety is always the most important rule. Constantly be aware of the dangers
involved in working on an automobile and take the proper precautions. Please
refer to the information in this section regarding SERVICING YOURVEHICLE
SAFELY and the SAFETYNOTICE on the acknowledgment page.
Avoiding the Most Common Mistakes
Pay attention to the instructions provided. There are 3 common mistakes in
mechanical work:
1. Incorrect order of assembly, disassembly or adjustment. When taking
something apart or putting it together, performing steps in the wrong order usu-
ally just costs you extra time; however, it CAN break something. Read the entire
procedure before beginning. Perform everything in the order in which the
instructions say you should, even if you can't see a reason for it. Whenyou're
taking apart something that is very intricate, you might want to draw a picture of
how it looks when assembled in order to make sure you get everything back in
its proper position. When making adjustments, perform them in the proper
order. One adjustment possibly will affect another.
2. Overtorquing (or undertorquing). While it is more common for over-
tcrquing to cause damage, undertorquing may allow a fastener to vibrate loose
causing serious damage. Especially when dealing with aluminum parts,pay
attention to torque specificationsand utilize a torque wrench in assembly. If a
torque figure is not available, remember that if you are using the right tool to
perform the job, you will probably not have to strain yourself to get a fastener
tight enough. The pitch of most threads is so slight that the tension you put on
the wrench will be multiplied many times in actual force on what you aretight-
ening.
There are many commercial products availablefor ensuring thatfasteners
won't come loose, even if they are not torqued just right (a very common brand
is Loctite"). If you're worried about getting something together tight enough to
hold, but loose enough to avoid mechanical damage during assembly, one of
trese products might offer substantial insurance. Before choosing a threadlock-
irg compound, read the label on the package and make sure the product is
compatible with the materials, fluids, etc. involved.
3. Crossthreading. This occurs when a part such as a bolt is screwed into a
nut or casting at the wrong angle and forced. Crossthreading is more likely to
occur if access is difficult. It helps to clean and lubricatefasteners, then to start
threading the bolt, spark plug, etc. with your fingers. I! you encounter resis-
tance, unscrew the part and start over again at a differentangle until it can be
irserted and turned several times without much effort. Keep in mind that many
parts have tapered threads, so that gentle turning will automatically bring the
part you're threading to the proper angle. Don't put a wrench on the part until it's
been tightened a couple of turns by hand. If you suddenly encounter resistance,
and the part has not seated fully, don't force it. Pull it back out to make sure it's
clean and threading properly.
Be sure to take your time and be patient, and always plan ahead. Allow your-
self ample time to perform repairs and maintenance.
Your monetary savings will be far outweighed by frustration and mangled
knuckles.
Begin accumulating those tools that are used most frequently: those associ-
ated with routine maintenance and tune-up. In addition to the normal assort-
ment of screwdrivers and pliers, you should have the following tools:
• Wrenches/sockets andcombination open end/box end wrenches in sizes
1/8-3/4 in. and/or 3mm-19mm 13/ie in. or % in. spark plug socket (depending
on plug type).
•"If possible, buy various length socket drive extensions. Universal-
joint and wobble extensions can be extremely useful, but be careful
when using them, as they can change the amount of torque applied to
the socket.

GENERAL INFORMATION AND MAINTENANCE 1-3
• Jackstands (or support.
• Oilfilter wrench.
• Spout or funnel for pouring fluids.
• Grease gun for chassis lubrication (unless your vehicle is not equipped
with any grease fittings)
• Hydrometer for checking the battery (unless equipped with a sealed,
maintenance-free battery).
• A container for draining oil and other fluids.
• Rags for wiping up the inevitable mess.
In addition to the above items there are several others that are not absolutely
necessary, but handy to have around. These include an equivalent oil absorbent
gravel, like cat litter, and the usual supply of lubricants, antifreeze and fluids.
This is a basic list for routine maintenance, but only your personal needs and
desire can accurately determine your list of tools.
After performing a few projects on the vehicle, you'll be amazed at the other
tools and non-tools on your workbench. Some useful household items are:a
large turkey baster or siphon, empty coffee cans and ice trays (to store parts), a
ball of twine, electrical tape for wiring, small rolls of colored tape for tagging
lines or hoses, markers and pens, a note pad, golf tees (for plugging vacuum
lines), metal coat hangers or a roll of mechanic's wire (to hold things out of the
way), dental pick or similar long, pointed probe, a strong magnet, and a small
mirror (to see into recesses and under manifolds).
A more advanced set of tools, suitable for tune-up work, can be drawn up
easily. While the tools are slightly more sophisticated, they need not be outra-
geously expensive. There are several inexpensivetach/dwell meters on the mar-
ket that are every bit as good for the average mechanic as a professional model.
Just be sure that it goes to a least 1200-1500 rpm on the tach scale and-that it
works on 4, 6 and 8-cylinder engines. The key to these purchases is to make
them with an eye towards adaptability and wide range. A basic list of tune-up
tools could include:
• Tach/dwell meter.
• Spark plug wrench and gapping tool.
• Feeler gauges for valve adjustment.
• Timing light.
,SS«*»8i
Fig. 1 All but the most basic procedures
will require an assortment of ratchets and
sockets
Fig. 4 An assortment of pliers, grippers
and cutters will be handy for old rusted
parts and stripped bolt heads
fe"~ i .u '''"^Mlf
Fig. 7 Although not always necessary,
using specialized brake tools will save
time
Fig. 2 In addition to ratchets, a good set of
wrenches and hex keys will be necessary
Fig. 3 A hydraulic floor jack and a set of
jackstands are essential for lifting and
supporting the vehicle
Fig. 5 Various drivers, chisels and prybars
are great tools to have in your toolbox
TCCS1205
Fig. 6 Many repairs will require the use of
a torque wrench to assure the components
are properly fastened
*
Fig. 8 A few inexpensive lubrication tools
will make maintenance easier
Fig. 9 Various pullers, clamps and separa-
tor tools are needed for many larger, more
complicated repairs

Fig. 10 A variety of tools and gauges
should be used for spark plug gapping and
installation
vrr*>fes»
^
Fig. 11 ina ictive type timing light
Fig. 13 A vacuum/pressure tester is neces-
sary for many testing procedures
r /
TCCX1P02
Fig. 12 A screw-in type compression
gauge is recommended for compression
testing
TCCX1POG
Fig. 14 M( st modern automotive multi-
meters incorporate many helpful features
The choice of a timing light should be made carefully. A light which vorks
on the DC current supplied by the vehicle's battery is the best choice; it mould
have a xenon tube for brightness. On any vehicle with an electronic ignit in sys-
tem, atiming light with aninductive pickup that clamps around theNo.| spark
plug cable is preferred.
In addition to these basic tools, there are several other tools and gaut
Fig. 15 Proper information is vital, so
always have a Chilton Total Car Care man-
ual handy
:syou
may find useful. These include:
• Compression gauge. The screw-in type is slower to use, but e!imii(jates
the possibility of a faulty reading due to escaping pressure.
• Manifold vacuum gauge.
• 12V test light.
• A combination volt/ohmmeter
• Induction Ammeter. This is used for determining whether or not thdre is
current in a wire. These are handy for use if a wire is broken somewhere! n a
wiring harness.
As a final note, you will probably find a torque wrench necessary for; II but
the most basic work. The beam type models are perfectly adequate, althd jgh the
SERVICING YOUR VEHICLE SAFELY
» See Figures 16,17 and 18
It is virtually impossible to anticipate all of the hazards involved with autt motive
maintenance and service, but care and common sense will prevent most accidents.
The rules of safety for mechanics range from "don't smoke around gaioline,"
to "use the proper tool(s) for the job." The trick to avoiding injuries is to
develop safe work habits and to take every possible precaution.
• Do keep a fire extinguisher and first aid kit handy.
• Do wear safety glasses or goggles when cutting, drilling, grinding
ing, even if you have 20-20 vision. If you wear glasses for the sake of v
wear safety goggles over your regular glasses.
or pry-
sion,
newer click types (breakaway) are easier to use. The click type torque wrenches
tend to be more expensive. Also keep in mind that all types of torque wrenches
should be periodically checked and/or recalibrated. You will have to decide for
yourself which better fits your pocketbook, and purpose.
Special Tools
Normally, the use of special factory tools is avoided for repair procedures,
since these are not readily available for the do-it-yourself mechanic. When it is
possible to perform the job with more commonly available tools, it will be
pointed out,but occasionally, a special tool was designed to perform a specific
function and should be used. Before substituting another tool, you should be
convinced that neither your safety nor the performance of the vehicle will be
ccmpromised.
Special tools can usually be purchased from an automotive parts store or
from your dealer. In some cases special tools may be available directly from the
tool manufacturer.
• Do shield your eyes whenever you work around the battery. Batteriescon-
tain sulfuric acid. In case of contact with, flush the area with water or a mixture
of water and baking soda, then seek immediate medical attention.
• Do use safety stands (jackstands) for any undervehicle service. Jacksare
for raising vehicles; jackstands are for making sure the vehicle stays raised until
you want it to come down.
• Do use adequate ventilation when working with any chemicals or haz-
ardous materials. Like carbon monoxide, the asbestos dust resulting from some
brake lining wear can be hazardous in sufficient quantities.
• Do disconnect the negative battery cable when working on the electrical
system. The secondary ignition system contains EXTREMELY HIGH VOLTAGE.
In some cases it can even exceed 50,000 volts.
• Do follow manufacturer's-directions whenever working with potentially
hazardous materials. Most chemicals and fluids are poisonous.

A f*1 ^
TCCS1020
Fig. 16 Screwdrivers should be kept in
good condition to prevent injury or dam-
age which could result if the blade slips
from the screw
Fig. 17 Using the correct size wrench will
help prevent the possibility of rounding off
a nut
Fig. 18 NEVER work under a vehicle
unless it is supported using safety stands
(jackstands)
• Do properly maintain your tools. Loose hammerheads, mushroomed
punches and chisels, frayed or poorly grounded electrical cords,excessively
worn screwdrivers, spread wrenches (open end), cracked sockets, slipping
ratchets, or faulty droplight sockets can causeaccidents.
• Likewise, keep your tools clean; a greasy wrench can slip off a bolt head,
ruining the bolt and often harming your knuckles in the process.
• Do use the proper size and type of tool for the job at hand. Do select a
wrench or socket that fits the nut or bolt. The wrench or socket should sit
straight, not cocked.
• Do, when possible, pull on a wrench handle rather than push on it, and
adjust your stance to prevent a fall.
• Do be sure that adjustable wrenches aretightly closed on the nut or bolt
and pulled so that the force is on the side of the fixedjaw.
• Do strike squarely with a hammer; avoid glancing blows.
• Do set the parking brake and block the drive wheels if the work requires a
running engine.
Don'ts
• Don't run the engine in a garage or anywhere else without proper venti-
lation—EVER! Carbon monoxide is poisonous; it takes a long time to leave
the human body and you can build up a deadly supply of it in your system by
simply breathing in a little at a time. You may not realize you are slowly poi-
soning yourself. Always use power vents, windows, fans and/or open the
garage door.
• Don't work around moving parts while wearing loose clothing. Short
sleeves are much safer than long, loose sleeves. Hard-toed shoes with neoprene
soles protect your toes and give a better grip on slippery surfaces. Watches and
jewelry is not safe working around a vehicle. Long hair should be tied back
under a hat or cap.
• Don't use pockets for toolboxes.A fall or bump can drive ascrewdriver
deep into your body. Even a rag hanging from your back pocket can wrap
around a spinning shaft or fan.
• Don't smoke when working around gasoline, cleaning solvent or other
flammable material.
• Don't smoke when working around the battery. When the battery is being
charged, it gives off explosive hydrogengas.
• Don't use gasoline to wash your hands; there are excellent soaps avail-
able. Gasoline contains dangerous additives which can enter the body through a
cut or through your pores. Gasoline also removes all the natural oils from the
skin so that bone dry hands will suck up oil and grease.
• Don't service theair conditioning system unless you are equipped with
the necessary tools and training. When liquid or compressed gas refrigerant is
released to atmospheric pressure it will absorb heat from whatever it contacts.
This will chill or freeze anything ittouches.
• Don't use screwdriversfor anything other than driving screws! A screw-
driver used as an prying tool can snap when you least expect it, causing
injuries. At the very least, you'll ruin a good screwdriver.
• Don't use an emergency jack (that little ratchet, scissors, or pantograph
jack supplied with the vehicle) for anything other than changing a flat! These
jacks are only intended for emergency use out on the road; they are NOT
designed as a maintenance tool. If you are serious about maintaining your vehi-
cle yourself, invest in a hydraulic floor jack of at least a 11/2ton capacity, and at
least two sturdy jackstands.
FASTENERS, MEASUREMENTS AND CONVERSIONS
Bolts, Nuts and Other Threaded Retainers
» See Figures 19 and 20
Although there are a great variety of fasteners found in the modern car or
truck, the most commonly used retainer is the threadedfastener (nuts, bolts,
screws, studs, etc.). Most threaded retainers may be reused, provided that they
are not damaged in use or during the repair. Some retainers (such as stretch
bolts or torque prevailing nuts) are designed to deform when tightened or in use
and should not be reinstalled.
Whenever possible, we will note any special retainers which should be
replaced during a procedure. But you should always inspect the condition of a
retainer when it is removed and replace any that show signs of damage. Check
all threads for rust or corrosion which can increase the torque necessary to
achieve the desired clamp load for which that fastener was originally selected.
Additionally, be sure that the driver surface of the fastener has not been com-
promised by rounding or other damage. In some cases a driver surface may
become only partially rounded, allowing the driver to catch in only one direc-
tion. In many of these occurrences, a fastener may be installed and tightened,
but the driver would not be able to grip and loosen the fastener again.
If you must replace a fastener, whether due to design or damage, you must
ALWAYS be sure to use the proper replacement. In all cases,a retainer of the
LOCKWASHERS
CO)
•HI •
TCCS1036
Fig. 19 There are many different types of threaded retainers found
on vehicles

h-c —i
1 i
F ^^HI
i r
(. A —
' ] A - Length
k J B - Diameter (major diameter)
> y x ^ C - Threads per inch or mm
E - Size of the wrench required
r— E —«1 F - Root diameter (minor diameter)
TCCS1038
Fig. 20 Threaded retainer sizes are determined using these me
surements
-
^
r^=====^^$A=sf~—1
'! Z i DEFLECTING BEAM
—-S—-*~~—?^^r~~
& o , fe'JH--' '
(n ] o s'.1,1,1,' 't i 1
CLICK TYPE
TCCS1015
Fig. 21 Various styles of torque wrenches are usually available at
your local automotive supply store
same design, material and strength should be used. Markings on the he|ds of
most bolts will help determine the proper strength of the fastener. The saj ne
material, thread and pitch must be selected to assure proper installation nd
safe operation of the vehicleafterwards.
Thread gauges are available to help measure a bolt or stud's thread. l|ost
automotive and hardware stores keep gauges available to help you selec the
proper size. In a pinch, you can use another nut or bolt for a thread gauc;. If the
bolt you are replacing is not too badly damaged, you can select a match iy
finding another bolt which will thread in its place. If you find a nut which
threads properly onto the damaged bolt, then use that nut to help select he
replacement bolt.
••-••' WARNING
Be aware that when you find a bolt with damaged threads, you may
also find the nut or drilled hole it was threaded into has also teen
damaged. If this is the case, you may have to drill and tap thd hole,
replace the nut or otherwise repair the threads. NEVER try to I irce a
replacement bolt to fit into the damaged threads.
Torque
Torque is defined as the measurement of resistance to turning or rotat ig.
tends to twist a body about an axis of rotation. A common example of thi
would be tightening a threaded retainer such as a nut, bolt or screw. Mee ;uring
torque is one of the most common ways to help assure that a threaded retainer
has been properlyfastened.
When tightening a threaded fastener, torque is applied in three distinc areas,
the head, the bearing surface and the clamp load. About 50 percent of thi mea-
sured torque is used in overcoming bearing friction. This is the friction b tween
the bearing surface of the bolt head, screw head or nut face and the base nater-
ial or washer (the surface on which the fastener is rotating). Approximate 140
percent of the applied torque is used in overcoming thread friction. This laves
only about 10 percent of the applied torque to develop a useful clamp IDE i (the
force which holds ajoint together). This means that friction can account 'pr as
much as 90 percent of the applied torque on afastener.
TORQUE WRENCHES
I See Figure 21
In most applications, a torque wrench can be used to assure proper installa-
tion of a fastener.Torque wrenches come in various designs and most auDmo-
tive supply stores will carry a variety to suit your needs. A torque wrench should
be used any time we supply a specific torque value for a fastener. Again, the
general rule of "if you are using the right tool for the job, you should not have
to strain to tighten a fastener" applies here.
Beam Type
The beam type torque wrench is one of the most popular types. It cons sts of
a pointer attached to the head that runs the length of the flexible beam (srpft) to
a scale located near the handle. As the wrench is pulled, the beam bends fnd
the pointer indicates the torque using the scale.
Click (Breakaway) Type
Another popular design of torque wrench is the click type. To usethe click
type wrench you pre-adjust it to a torque setting. Once the torque is reached,
the wrench has a reflex signaling feature that causes a momentary breakaway of
the torque wrench body, sending an impulse to the operator's hand.
Pivot Head Type
I SeeFigure 22
Some torque wrenches (usually of the click type) may be equipped with a
pivot head which can allow it to be used in areas of limited access. BUT, it must
be used properly. To hold a pivot head wrench, grasp the handle lightly, and as
you pull on the handle, it should be floated on the pivot point. If the handle
comes in contact with the yoke extension during the process of pulling, there is
a very good chance the torque readings will be inaccurate because this could
alter the wrench loading point. The design of the handle is usually such as to
make it inconvenient to deliberately misuse the wrench.
••It should be mentioned that the use of any U-joint, wobble or exten-
sion will have an effect on the torque readings, no matter what type of
wrench you are using. For the most accurate readings, install the socket
directly on the wrench driver. If necessary, straight extensions (which
hold a socket directly under the wrench driver) will have the least effect
on the torque reading. Avoid any extension that alters the length of the
wrench from the handle to the head/driving point (such as a crow's
foot). U-joint or wobble extensions can greatly affect the readings; avoid
their use at all times.
PIVOTED HANDLE TORQUE WRENCH
TCCS1041
Fig. 22 Torque wrenches with pivoting heads must be grasped and
used properly to prevent an incorrect reading
Rigid Case (Direct Reading)
A rigid case or direct reading torque wrench is equipped with a dial indicator
to show torque values. One advantage of these wrenches is that they can be
held at any position on the wrench without affecting accuracy. These wrenches
are often preferred because they tend to be compact, easy to read and have a
great degree of accuracy.

TORQUE ANGLE METERS
Because the frictional characteristics of eachfastener or threaded hole will vary,
clamp loads which are based strictly on torque will vary as well. In most applica-
tions, this variance is not significant enough to causeworry. But, in certain applica-
tions, a manufacturer's engineers may determinethat more preciseclamp toads are
necessary (such is the case with many aluminum cylinder heads). In these cases,a
torque angle method of installation would be specified.When installing fasteners
which are torque angle tightened, a predetermined seating torque and standard
torque wrench are usually used firstto removeany compliance from the joint. The
fastener is then tightened the specified additional portion of a turn measured in
degrees. A torque angle gauge (mechanical protractor) is used for these applications.
Standard and Metric Measurements
» See Figure 23
Throughout this manual, specificationsare given to help you determine the
condition of various components on your vehicle, or to assist you in their
installation. Some of the most common measurements include length (in. or
cm/mm), torque (ft. Ibs., inch Ibs. or Nm) and pressure (psi, in. Hg, kPa or mm
Hg). In most cases, we strive to provide the proper measurement as determined
by the manufacturer's engineers.
Though, in some cases, that value may not be conveniently measured with
what is available in your toolbox. Luckily, many of the measuring devices which
are available today will have two scales so the Standard or Metric measure-
ments may easily be taken. If any of the various measuring tools which are
available to you do not contain the same scale as listed in the specifications,
use the accompanying conversion factors to determine the proper value.
The conversion factor chart is used by taking the given specificationand
multiplying it by the necessary conversion factor. For instance, looking at the
first line, if you have a measurement in inches such as "free-play should be 2
in." but your ruler reads only in millimeters, multiply 2 in. by the conversion
factor of 25.4 to get the metric equivalent of 50.8mm. Likewise, if the specifica-
tion was given only in a Metric measurement, for example in Newton Meters
(Nm), then look at the center column first. If the measurement is 100 Nm, multi-
ply it by the conversion factor of 0.738 to get 73.8 ft. Ibs.
CONVERSIONFACTORS
LENGTH-DISTANCE
Inches (m ) x 25,4
Fee! (ft.) x 305
Miles x ! 604
VOLUME
Cubic Inches (in3) x 16.387
IMP Pints (IMP pt | x .56S
IMP Quarts (IMPqt ) x 1.137
IMP Gallons (IMP gall x 4..S46
IMP Quails (IMP qt.) <t 1.201
IMP Gallons (IMP gal.) x 1.201
R Ounces x 29.573
US Pints (US pi > x .473
US Quarts (US 4i ) x .946
US Gallons (US g.,1.) x 3 7X5
MASS-WEIGHT
Ounces (oz I * 28.35
Pounds (Ib.) x 454
PRESSURE
Pounds Pei Sq. In (psi) x 6.895
Inches of Mercury (Hg) x 4912
Inches of Mercury (Hg) x 3.377
Inches of Water (HjO) x .07355
Inches of Water (H,O) x .03613
Inches of Water (H.O) x.248
TORQUE
Pounds-Force Inches (in-lh) x .1 13
Pounds-Force Feet (ft-lh) x 1 356
VELOCITY
Miles Per Hour (MPH I x 1.609
POWER
Horsepower (Hp( *.745
FUEL CONSUMPTION*
Miles Per Gallon IMP (MPG) x .154
Kilometers Per Liter (Km/L) x 2.352
Kilometers Per Liter {Km/1,) x 2.352
•It is common to covert from miles per gallon (r
= 282 and mpg (US) x 1/10(1 km = 235
TEMPERATURE
Degree Fahrenheit CF) - f C x l . 8 ) t 32
Degree CVUius f(') - (°K - 32) 6
= Millimeters (mm) x .0394
= Meters (m) x 3.281
= Kilometers (km) x .0621
= Cubic Centimeters x .061
= Liters (t.) x 1 76
= Liters (L) x .88
- Liters (L) x .22
= US Quarts (US qi.) x .833
= US Gallons (US gal.) x 831
-= Milliliters x 034
= Liters (L) x 2.113
- Liters (L) x 1.057
- Liters (L) x 264
= Grams (g) x .035
= Kilograms (kg) x 2205
*= Kilopascals (kPa) x .145
-- psi x 2.036
=-- Kilopascals (kPa) x .2961
- Inches of Mercury x 13783
=. psi x 27.684
= Kilopascals (kPa) x 4 0 2 6
= Newton Meters (N-m) x 8.85
= Newton Meters (N-m) x .738
= Kilometers Per Hour (KPH) x .621
=-- Kilowatts x 1 34
- Kilometers PerLiter (Km/L)
- IMP MPG
= US MPG
ipg) to liters/100 kilometers (1/100 km), where
= Inches
r--- Feet
= Miles
= m3
= IMP pi.
= IMPqt
= IMPgai.
- IMP qt.
= IMP gal.
= Ounces
= Pints
- Quarts
= Gallons
« Ounces
= Pounds
= psi
= Hg
= Hg
= H,O
- H.O
= H,0
= in-lb
.ft-lb
-MPH
= Horsepower
upg (IMP)x 1/100 km
TCCS1044
Fig. 23 Standard and metric conversion factors chart
SERIAL NUMBER IDENTIFICATION
Vehicle
> See Figures 24 and 25
The Vehicle Identification Number (VIN) plate is mounted on the driver's side
of the instrument panel, and is visible through the windshield.
The models covered in this book are full size C/K trucks including theTahoe,
Blazer, Jimmy, Yukon and Suburban. Starting in 1992 the Blazer was renamed
the Blazer/Tahoe and Jimmy the Jimmy/Yukon.
The 5th digit on the vehicle identification number is the vehicle line and
chassis type:
• C and Rare2-wheel drive conventional cabs
• V and K are 4-wheel drive conventional cabs
Fig. 24 The Vehicle Identification Number (VIN) is visible through
the windshield
1 4 N 4 J F 1 0 0 0 0 1
Fig. 25 Vehicle Identification Number decoding
Engine
»See Figure 26
On the 4.8L, inline 6-cylinder engine, the engine identification number is
found on a machined pad on the left side of the block, just rear of center, below
the engine side cover.
On the 1988-92 4.3L V6 engine, the engine identification number is found
on a machined pad on the block, at the front just below the right side cylinder
head.

VEHICLE IDENTIFICATION CHART
Engine Code
Engine Series
(IO/VIN)
Z
W
T
H
M
K
R
C
J
F
P
Engine
Displacement
Liters
4.3
4.3
4.8
5.0
5.0
5.7
5.7
6.2
6.2
6.5
6.5
Cubic No.of Fuel
Inches Cylinders System
263 (4293) 6
263 (4293) 6
292 (4785) 6
305 (4999) 8
305 (4999) 8
350 (5735) 8
350 (5735) 8
379(6210) 8
379 (6210) 8
395 (6473) 8
395 (6473) 8
TBI
CSFI
1BC
®
CSFI
TBI
CSFI
D
D
@
D
Eng. Mfg.
CPC
CPC
CPC
CPC
CPC
CPC
CPC
DDA
DDA
CPC
CPC
Model Year
Code
J
K
L
M
N
P
R
S
T
V
W
Year
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
P
S
N
W
J
6.5
6.5
7.4
7.4
7.4
395 (6473)
395 (6473)
454 (7440)
454 (7440)
454 (7440)
8
8
8
8
8
The 10th digit of the Vehicle Identification Number (VIN) is the ;
D
TD
TBI
4BC
MFI
CPC
CPC
CPC
CPC
CPC
ear code and the 8th digit is the engine code.
®4BCorTBI
® D or TD/HO
1BC-1 Barrel Carburetor
4BC-4 Barrel Carburetor
CPC-Chevrolet/Pontiac ol Canada
CSFi-Central Sequential Fuel Injection
D-Diesel
DDA-DetroitC
HO-High Oi
MFI-Multi-port
TBI-Throttle B^Jy Injection
TD-Turbo Dii
sel Allison
put
uel Injection
Fig. 26 The engine identification number is usually located on <
machined pad on the engine block
On the 1993-98 4.3L V6 engine, the engine identification number is f und
on a machined padon the rear of the cylinder block, below and behind tt; left
cylinder head where the engine mates with the bellhousing.
On V8 gasoline engines, the engine identification number is usually f pnd on
a machined pad on the block, at the front just below the right side cylind
head. The engine identification number is sometimes also found on a mat hined
pad on the left, rear upper side of the block, where the engine mates with he
bellhousing.
On V8 diesel engines, the engine identification number is found on a
machined pad on the front of the block, between the left cylinder head anf the
thermostat housing, and/or on a machined pad on the left rear of the bloc) t, just
behind the left cylinder head. In the following example, engine number
F1210TFA is broken down as follows:
• F—Manufacturing Plant. F-Flint andT-Tonawanda
12—Month of Manufacture (December)
10-Day of Manufacturer (Tenth)
T—Truck engine
FA—Transmission and Engine Combination
Transmission
The Muncie 117mm 4-speed transmission is numbered on the rear of the
case, abovethe output shaft.
The 4-Speed 85mm and 5-Speed 85mm transmissions are numbered on the
right rear of the case.
The NVG 3500 5-speed transmissions are numbered on the top, left side of
the case, near the bellhousing.
The NVG 4500 5-speed transmissions are numbered on the top, left side of
the case, near the bellhousing.
The NVG 5LM60 5-speed transmissions are numbered on the lower left side,
about halfway back on the case.
The automatic transmissions are identified by a plate attachedto the right
side, which is stamped with the serial number.
Drive Axle
The drive axle serial number is stamped on the axle shaft housing, where it
connects to the differential housing.
Front axles on four wheel drive models are marked on the front of the left
axle tube.
Transfer Case
All transfercases have a build tag attached to the case.
On the NP205, it is attachedto the bolt retaining the Power Take Off (PTO)
cover.

l
i
i
l
l
u- S,f
s s
» e
8 _
3 3
q> * E
1 1 1
Silll
s 3 ,
e -h
T— O O
o
i
o _,
o
i
l
l

On the NP231, NP233 and NP241, it is attached to the rear case half.
On the NV241 and NV243, it is attached to the rear case half.
On the Borg Warner 4401/4470, it is attached to an extension housing
bolt.
Service Parts Identification Label
I See Figure 27
The service parts identification label, commonly known as the optio i list,
is usually located on the inside of the glove compartment door. On sor IB
trucks, you may have to look for it on an inner fender panel. The label ists
the vehicle serial number, wheelbase, all Regular Production Options (IPOs)
and all special equipment. Probably, the most valuable piece of inform tion
on this label is the paint code, a useful item when you have occasion tj need
paint.
ROUTINE MAINTENANCE AND TUNE-UP
Proper maintenance and tune-up is the key to long and trouble-free v :hicle
life. Studies have shown (hat a properly tuned and maintained vehicle a e better gas mileage than an out-of-tune vehicle. As a conscientio s
owner and driver, set aside a Saturday morning, say once a month, to cf ick or
replace items which could cause major problems later. Keep your own p rsonal
log to jot down which services you performed, how much the parts cost m,
the date, and the exact odometer reading at the time. Keep all receipts fo such
items as engine oil and filters, so that they may be referred to in case of j elated
problems or to determine operating expenses. As a do-it-yourselfer, the:i
receipts arethe only proof you have that the required maintenance was [ in-
formed. In the event of a warranty problem, these receipts will be invalua; )le.
The literature provided with your vehicle when it was originally delivered
includes the factory recommended maintenance schedule. If you no Ion; ;r have
this literature,replacement copies are usually available from the dealer.
Air Cleaner
» See Figures 28, 29 and 30
The element should be replaced at the recommended intervalsshown in the
Maintenance Intervals chart later in this section. If your truck is operated under
severely dusty conditions or severe operating conditions, more frequent
changes will certainly be necessary. Inspect the element at least twice a tear.
Early spring and early fall are always good times for inspection. Remove tie
element and check for any perforations or tears in the filter. Check the cli aner
housing tor signs of dirt or dust that may have leaked through the filter e ement
or in through the snorkel tube. Position a droplight on one side of the element
2 Wheel base
3 Model designation
4 RPO and/Of SEO
5 Order numbef
6 E.lenoi colof
7 Paml lechnology
Fig. 27 Service parts identification label
and look through the filter at the light. If no glow of light can be seen through
the element material, replace the filter. If holes in the filter element are apparent
or signs of dirt seepage through the filter are evident, replace the filter.
1 Air cleaner
2. Seal
3. Extension
4. Stud
5. Nut - 18 ini
Fig. 28 Typical air cleaner housing assembly components—198
gasoline engines
1. Wing Nut
2.2 Hole Cover
3. Air Cleaner Assembly
4. Air Cleaner Extension
5.TBI Assembly
Fig. 29 Exploded view of the air cleaner housing—1993 gasoline
engines
-92
. Air Cleaner
3. EGR Valve
Fig. 30 Exploded view of the air cleaner housing—6.2L diesel
engines

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