service JEEP YJ 1995 Service And Repair Manual

CHRYSLER
CORPORATION
SERVICE MANUAL
1995 JEEP
To order the special service tools used and
illustrated, please refer to the instructions on
inside back cover.
NO PART OF THIS PUBLICATION MAY BE
REPRODUCED, STORED IN A RETRIEVAL
SYSTEM, OR TRANSMITTED, IN ANY FORM
OR BY ANY MEANS, ELECTRONIC, ME-
CHANICAL, PHOTOCOPYING, RECORDING,
OR OTHERWISE, WITHOUT THE PRIOR
WRITTEN PERMISSION OF CHRYSLER
CORPORATION.
Chrysler Corporation reserves the right to make changes in design or to
make additions to or improvements in its products without imposing any ob-
ligations upon itself to install them on its products previously manufactured.
Litho in U.S.A. Copyright 1994 Chrysler Corporation 20M0694
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FOREWORD
The information contained in this service manual has been prepared for the professional automotive tech-
nician involved in daily repair operations. This manual does not cover theory of operation, which is addressed
in service training material. Information describing the operation and use of standard and optional equipment
is included in the Owner 's Manual provided with the vehicle.
Information in this manual is divided into groups. These groups contain general information, diagnosis,
testing, adjustments, removal, installation, disassembly, and assembly procedures for the components. To as-
sist in locating a group title page, use the Group Tab Locator on the following page. The solid bar after the
group title is aligned to a solid tab on the first page of each group. The first page of the group has a contents
section that lists major topics within the group. If you are not sure which Group contains the information you
need, look up the Component/System in the alphabetical index located in the rear of this manual.
A Service Manual Comment form is included at the rear of this manual. Use the form to provide Chrysler
Corporation with your comments and suggestions.
Tightening torques are provided as a specific value throughout this manual. This value represents the
midpoint of the acceptable engineering torque range for a given fastener application. These torque values are
intended for use in service assembly and installation procedures using the correct OEM fasteners. When re-
placing fasteners, always use the same type (part number) fastener as removed.
Chrysler Corporation reserves the right to change testing procedures, specifications, diagnosis, repair
methods, or vehicle wiring at any time without prior notice or incurring obligation.
NOTE: The acronyms, terminology and nomenclature used to identify emissions related components in
this manual may have changed from prior publications. These new terms are in compliance with S.A.E.
recommended practice J1930.
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GROUP TAB LOCATOR
Introduction
0Lubrication and Maintenance
2Front Suspension and Axle
3Rear Suspension and Axles
5Brakes
6Clutch
7Cooling System
8Electrical
9Engines
11Exhaust System and Intake Manifold
13Frame and Bumpers
14Fuel System
16Propeller Shafts
19Steering
21Transmission and Transfer Cases
22Wheels and Tires
23Body Components
24Heating and Air Conditioning
25Emission Control Systems
Index
Service Manual Comment Forms (Rear of Manual)

INTRODUCTION
CONTENTS
page page
DESIGNATIONS, LABELS/PLATES, CODES AND
DIMENSIONS.......................... 1MEASUREMENT AND TORQUE
SPECIFICATIONS...................... 11
DESIGNATIONS, LABELS/PLATES, CODES AND DIMENSIONS
INDEX
page page
Engine and Transmission/Transfer Case
Identification............................ 5
International Vehicle Control and Display Symbols . . 5
Major Component Identification................ 5
Trailer Towing Specifications.................. 5
Vehicle Code Plate......................... 4Vehicle Designations........................ 1
Vehicle Dimension Data..................... 5
Vehicle Identification Number (VIN) Plate......... 4
Vehicle Load Data......................... 5
Vehicle Safety Certification Label............... 4
VEHICLE DESIGNATIONS
The Vehicle Code Designations chart lists the vehi-
cle description and code for Cherokee and Wrangler
vehicles. The codes are used to identify vehicle types
in charts, captions and in service procedures. The ve-
hicle codes are different than the Vehicle Identifica-
tion Number (VIN) or the wheelbase/model code.
The following illustrations shows the labels, decals
and plates as well as locations on each vehicle.
VEHICLE CODE DESIGNATIONS
JINTRODUCTION 1

²3-character sales code.
²3-digit numerical code.
²6-digit SEC code.
If there is not enough space left in the row for all
of the 6-digit SEC code (if used):
²The unused space will remain blank.
²The code will be listed in the next row.
The last nine positions of row 7 will contain a
2-digit code, when applicable, and a 6-digit gateline
serial number (same as the last 6 numbers of the
VIN).The last code imprinted on a vehicle code plate will
be followed by the imprinted word END. When two
vehicle code plates are required, the last available
spaces on the first plate will be imprinted with the
letters CTD (for continued).
When a second vehicle code plate is necessary, the
first four spaces on each row will not be used because
of the plate overlap.
ENGINE AND TRANSMISSION/TRANSFER CASE
IDENTIFICATION
When required, refer to Group 9, Engines for all
engine identification data. Refer to Group 21, Trans-
missions for all transmission/transfer case identifica-
tion data.
MAJOR COMPONENT IDENTIFICATION
When required, refer to the applicable service infor-
mation group for major component identification
data.
VEHICLE DIMENSION DATA
The vehicle dimension data charts list the exterior
and interior dimensions for each type of Jeep vehicle.
VEHICLE LOAD DATA
The Vehicle Load Data chart lists the following in-
formation:
²Gross vehicle weight rating (GVWR).
²Gross axle weight ratings (GAWR).
²Cargo weight.
²Passenger weight for each Jeep type/body style.
TRAILER TOWING SPECIFICATIONS
The Trailer Towing Specification chart provide:
²Minimum Vehicle requirements.
²The maximum trailer tongue weight.
²The maximum trailer weight.
²The maximum combined weight of the trailer/load/
towing vehicle with a specific engine/transmission/
axle combination.
INTERNATIONAL VEHICLE CONTROL AND DISPLAY
SYMBOLS
Most of the graphic symbols illustrated in the fol-
lowing chart are used to identify various instrument
controls and displays.
Fig. 2 Vehicle Code Plate
VEHICLE CODE DECODING
JINTRODUCTION 5

MEASUREMENT AND TORQUE SPECIFICATIONS
INDEX
page page
Metric and English/Sae Conversion............ 11
Specification Notations..................... 11Torque Specifications...................... 11
SPECIFICATION NOTATIONS
WARNING: THE USE OF INCORRECT ATTACHING
HARDWARE CAN RESULT IN COMPONENT DAM-
AGE AND/OR PERSONAL INJURY.
It is important to retain the original attaching
hardware for assembly of the components. If the at-
taching hardware is not reusable, hardware with
equivalent specifications must be used.
METRIC AND ENGLISH/SAE CONVERSION
The following chart will assist in converting metric
units to equivalent English and SAE units, or vise
versa.
TORQUE SPECIFICATIONS
TORQUE CHARTS
A torque chart for fasteners is provided at the end
of each group (of service information). Refer to the
Torque Specifications chart to determine torque val-
ues not listed in the group.It is important to be aware that the torque values
listed in the chart are based on clean and dry bolt
threads. Reduce the torque value by 10 percent when
the bolt threads are lubricated and by 20 percent if
new.
BOLT THREAD AND GRADE/CLASS
IDENTIFICATION
THREAD IDENTIFICATION
SAE and metric bolt/nut threads are not the same.
The difference is described in the Thread Notation
chart.
GRADE/CLASS IDENTIFICATION
The SAE bolt strength grades range from grade 2 to
grade 8. The higher the grade number, the greater
the bolt strength. Identification is determined by the
line marks on the top of each bolt head. The actual
bolt strength grade corresponds to the number of line
marks plus 2. The most commonly used metric bolt
strength classes are 9.8 and 12.9. The metric strength
class identification number is imprinted on the head
of the bolt. The higher the class number,
CONVERSION FORMULAS AND EQUIVALENT VALUES
JINTRODUCTION 11

LUBRICATION AND MAINTENANCE
CONTENTS
page page
CHASSIS AND BODY COMPONENTS........ 28
DRIVETRAIN........................... 22
ENGINE MAINTENANCE................... 15GENERAL INFORMATION.................. 1
JUMP STARTING, TOWING AND HOISTING.... 9
MAINTENANCE SCHEDULES................ 4
GENERAL INFORMATION
INDEX
page page
Classification of Lubricants................... 2
Components Requiring No Lubrication........... 2
Fluid Capacities........................... 3
Fuel Requirements......................... 1International Symbols....................... 1
Introduction.............................. 1
Lubrication and Replacement Parts
Recommendation......................... 2
INTRODUCTION
Lubrication and maintenance is divided into re-
quired and recommended service tasks. The required
service tasks must be completed to verify the emis-
sion controls function correctly. The recommended
service tasks should be completed to maintain safety
and durability.
This information will assist the service personnel
in providing maximum protection for each owner's
vehicle.
Conditions can vary with individual driving habits.
It is necessary to schedule maintenance as a time in-
terval as well as a distance interval.
It is the owner's responsibility to determine the ap-
plicable driving condition. Also to have the vehicle
serviced according to the maintenance schedule, and
to pay for the necessary parts and labor.
Additional maintenance and lubrication informa-
tion is listed in the Owner's Manual.
INTERNATIONAL SYMBOLS
Chrysler Corporation uses international symbols to
identify engine compartment lubricant and fluid in-
spection and fill locations (Fig. 1).
FUEL REQUIREMENTS
All gasoline engines require the use of unleaded
gasoline to reduce the potentially harmful effects of
lead to the environment. Also unleaded fuel is neces-
sary to prevent damage to the catalytic converter/O2sensor. The fuel must have a minimum octane rating
of 87 based on the (R + M)/2 calculation method.
CAUTION: UNLEADED FUEL ONLY must be used in
vehicles equipped with a catalyst emission control
system. All vehicles have reminders printed on the
instrument panel below the fuel gauge and on the
fuel filler door. The vehicles also have fuel filler
tubes that are specially designed to accept only the
small-diameter dispensing nozzles. It is illegal to
bypass the design of an unleaded fuel filler tube
and contaminate the fuel system.
Fig. 1 International Symbols
JLUBRICATION AND MAINTENANCE 0 - 1

CLASSIFICATION OF LUBRICANTS
Lubricating fluids and chassis lubricants are clas-
sified according to standards recommended by the:
²Society of Automotive Engineers (SAE)
²American Petroleum Institute (API)
²National Lubricating Grease Institute (NLGI)
ENGINE OIL
API CERTIFICATION MARK
For maximum engine protection during all driving
conditions, install an engine oil that contains the API
Certification Mark (Fig. 2). The API Certification
Mark indicates that the oil is certified to meet the
most critical requirements established by the manu-
facturer.
Conformance to API specifications is determined by
tests that measure the ability of an oil to control:
²Engine wear.
²Bearing corrosion.
²Sludge.
²Varnish.
²Oil thickening.
²Rust.
²Piston deposits.
SAE VISCOSITY GRADE
An SAE viscosity grade is used to specify the vis-
cosity of engine oil. SAE 30 specifies a single viscos-
ity engine oil. Engine oils also have multiple
viscosities. These are specified with a dual SAE vis-
cosity grade which indicates the cold-to-hot tempera-
ture viscosity range.
API SERVICE GRADE CERTIFIED
The API Service Grade specifies the type of perfor-
mance the engine oil is intended to provide. The API
Service Grade specifications also apply to energy con-
serving engine oils.
Use an engine oil that is API Service Grade Certi-
fied or an oil that conforms to the API Service Grade
SH or SH/CD. MOPAR provides engine oils that con-
form to all of these service grades.
GEAR LUBRICANTS
A dual grade is also used to specify the viscosity of
multi-purpose gear lubricants.
The API grade designation identifies gear lubri-
cants in terms of recommended usage.
CHASSIS COMPONENT AND WHEEL BEARING
LUBRICANTS
The chassis and wheel bearing lubricants that are
recommended are identified by the NLGI Certifica-
tion Symbol. The symbol contains a coded designa-
tion. This identifies the usage and quality of the
lubricant.
The letter G within the symbol designates wheel
bearing lubricant. The letter L designates chassis lu-
bricant. When the letters are combined, the lubricant
can be used for dual applications. Use only lubricants
that display the NLGI Certification Symbol (Fig. 3).
LUBRICATION AND REPLACEMENT PARTS
RECOMMENDATION
Jeep vehicles are engineered to provide many years
of dependable operation. However, lubrication service
and maintenance are required for each vehicle. When
necessary, MOPARtbrand lubricants and genuine re-
placement parts are highly recommended. Each MO-
PAR brand lubricant and replacement part is
designed and to provide dependability and long ser-
vice life.
COMPONENTS REQUIRING NO LUBRICATION
There are many components that should not be lu-
bricated. The components that should not be lubri-
cated are:
²Air pumps.
²Generator bearings.
²Distributors.
²Drive belts.
²Drive belt idler pulleys.
²Rubber bushings.
²Starter motor bearings.
²Suspension strut bearings.
²Throttle control cables.
²Throttle linkage ball joints.
²Water pump bearings.
Fig. 2 The API Engine Oil Certification Mark
Fig. 3 NLGI Lubricant Container Certification/
Identification Symbol
0 - 2 LUBRICATION AND MAINTENANCEJ

MAINTENANCE SCHEDULES
INTRODUCTION
There are two maintenance schedules that show
proper service intervals for Jeep Cherokee and Jeep
Wrangler vehicles. Use the schedule that best de-
scribes the conditions the vehicle is operated under.
When mileage and time is listed, follow the interval
that occurs first.
ScheduleÐAlists all the scheduled maintenance
to be performed under normal operating conditions.
ScheduleÐBis a schedule for vehicles that are
usually operated under one or more of the following
conditions.
²Frequent short trip driving less than 5 miles (8
km).
²Frequent driving in dusty conditions.
²Trailer towing or heavy load hauling.
²Frequent long periods of engine idling.
²Sustained high speed operation.
²Desert operation.
²Frequent starting and stopping.
²Cold climate operation.
²Off road driving.
²Commercial service.
²Snow plow operation.
²More than half of vehicle operation occurs in
heavy city traffic during hot weather (above 90É F).
AT EACH STOP FOR GASOLINE
²Check engine oil level and add as required.
²Check windshield washer solvent and add as re-
quired.
ONCE A MONTH
²Check tire pressure and look for unusual tire wear
or damage.
²Check fluid levels of coolant reservoir, brake mas-
ter cylinder, power steering and transmission. Add
fluid as required.
²Check all lights and other electrical items for cor-
rect operation.
²Inspect battery and clean and tighten terminals as
required.
²Check rubber seals on each side of the radiator for
proper fit.
AT EACH OIL CHANGE
²Inspect exhaust system.
²Inspect brake hoses.
²Rotate the tires at each oil change interval shown
on ScheduleÐA: (7,500 Miles) or every other interval
shown on ScheduleÐB: (6,000 Miles).
²Check engine coolant level, hoses, and clamps.
²Lubricate 4x4 steering linkage.
²Lubricate propeller shaft universal joints and slip
spline, if equipped.After completion of off-road (4WD) operation, the
underside of the vehicle should be thoroughly in-
spected. Examine threaded fasteners for looseness.
HARSH SURFACE ENVIRONMENTS
After vehicle operation in a harsh surface environ-
ment, the following components should be inspected
and cleaned as soon as possible:
²Brake drums.
²Brake linings.
²Front wheel bearings (2WD vehicles only).
²Axle coupling joints.
This will prevent wear and/or unpredictable brake
action.
EMISSION CONTROL SYSTEM MAINTENANCE
The schedule emission maintenance listed inbold
typeon the following schedules, must be done at the
mileage specified to assure the continued proper
functioning of the emission control system. These,
and all other maintenance services included in this
manual, should be done to provide the best vehicle
performance and reliability. More frequent mainte-
nance may be needed for vehicles in severe operating
conditions such as dusty areas and very short trip
driving.
SCHEDULEÐA
7,500 MILES (12 000 KM) OR AT 6 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
15,000 MILES (24 000 KM) OR AT 12 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
22,500 MILES (36 000 KM) OR AT 18 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Inspect brake linings.
30,000 MILES (48 000 KM) OR AT 24 MONTHS
²Replace air cleaner element.
²Replace spark plugs.
²Adjust belt tension on non-automatic tensioning
drive belts.
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
0 - 4 LUBRICATION AND MAINTENANCEJ

120,000 MILES (192 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Replace spark plugs.
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Replace ignition wires.
²Adjust or replace drive belts.
²Replace fuel filter. See note #1.²Drain and refill transfer case fluid.
NOTE 1:Not required for California vehicles, rec-
ommended for proper vehicle performance.
* Off-highway operation, trailer towing, taxi, limou-
sine, bus, snow plowing, or other types of commercial
service or prolonged operation with heavy loading,
especially in hot weather, require front and rear axle
service indicated witha*inScheduleÐB. Perform
these services if you usually operate your vehicle un-
der these conditions.
Inspection and service should also be performed
anytime a malfunction is observed or suspected.
0 - 8 LUBRICATION AND MAINTENANCEJ