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
FLUID CAPACITIES
Fuel Tank
XJ .....................................................76.4 L (20.2 gal.)
YJ(Standard) ......................................56.8 L (15 gal.)
YJ(Optional) .......................................75.7 L (20 gal.)
Engine Oil
2.5L ......................................................3.8 L (4.0 qts.)
4.0L ......................................................5.7 L (6.0 qts.)
Cooling System
2.5L(XJ).............................................9.5 L* (10 qts.*)
2.5L(YJ) ........................................8.5 L** (9.0 qts.**)
4.0L(XJ) ........................................11.4 L* (12.0 qts.*)
4.0L(YJ) ......................................9.9 L** (10.5 qts.**)
* Includes (2.2 L) (2.3 qts) for coolant recovery res-
ervoir.
** Includes (0.9 L) (1.0 qt.) for coolant recovery res-
ervoir.
Automatic Transmission
Dry fill capacity.*
AW4 (XJ-4.0L) ...................................8.0 L (16.9 pts.)
30RH (YJ-2.5L) .................................8.2 L (17.5 pts.)
32RH (YJ-4.0L) .................................8.2 L (17.5 pts.)
*Depending on type and size of internal cooler,
length and inside diameter of cooler lines, or use ofan auxiliary cooler, these figures may vary. Refer to
Group 21, Transmission for proper fluid fill proce-
dure.
Manual Transmission
AX4/5 (4X2) .........................................3.3 L (3.5 qts.)
AX5 (4X4) ............................................3.2 L (3.3 qts.)
AX15 (4X2) ..........................................3.1 L (3.2 qts.)
AX15 (4X4) ......................................3.15 L (3.32 qts.)
Fill to bottom of fill hole.
Transfer Case
SELEC-TRAC 242(XJ) .......................1.4 L (3.0 pts.)
COMMAND-TRAC 231(XJ) ...............1.0 L (2.2 pts.)
COMMAND-TRAC 231(YJ-Man Trans) ..1.5 L (3.25
pts.)
COMMAND-TRAC 231(YJ-Auto Trans) ....1.0 L (2.2
pts.)
Front Axle
MODEL 30 (YJ) ..............................1.65 L (3.76 pts.)
MODEL 30 (XJ) ..............................1.48 L (3.13 pts.)
Rear Axle
MODEL 35 (XJ-YJ) ........................1.6 L (3.38 pts.*)
8-1/4 (XJ) .........................................2.08 L (4.4 pts.*)
* When equipped with TRAC-LOK, include 2
ounces of Friction Modifier Additive.
JLUBRICATION AND MAINTENANCE 0 - 3
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
37,500 MILES (60 000 KM) OR AT 30 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill manual transmission.
45,000 MILES (72 500 KM) OR AT 36 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Inspect brake linings.
²Flush and replace engine coolant, regardless of
mileage.
52,500 MILES (84 500 KM) OR AT 42 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Flush and replace engine coolant if not done at 36
months.
60,000 MILES (96 500 KM) OR AT 48 MONTHS
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Replace ignition wires.
²Replace spark plugs.
²Adjust or replace drive belts.
²Change engine oil.
²Replace engine oil filter.
²Replace fuel filter. (See Note #1)
²Lubricate steering linkage.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
67,500 MILES (108 500 KM) OR AT 54
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Inspect brake linings.
75,000 MILES (120 500 KM) OR AT 60
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Drain and refill manual transmission.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
82,500 MILES (133 000 KM) OR AT 66
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
90,000 MILES (145 000 KM) OR AT 72
MONTHS
²Replace air cleaner element.
²Replace spark plugs.
²Adjust drive belts.
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Inspect brake linings.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
97,500 MILES (157 000 KM) OR AT 78
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
105,000 MILES (169 000 KM) OR AT 84
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
112,500 MILES (181 000 KM) OR AT 90
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Inspect brake linings.
²Drain and refill manual transmission.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
120,000 MILES (193 000 KM) OR AT 96
MONTHS
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Lubricate steering linkage.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
²Replace ignition wires.
²Replace spark plugs.
²Adjust or replace drive belts.
²Change engine oil.
²Replace engine oil filter.
²Replace fuel filter. (See note #1)
JLUBRICATION AND MAINTENANCE 0 - 5
SCHEDULEÐB
3,000 MILES (4 800KM)
²Change engine oil.
²Replace engine oil filter.
6,000 MILES (9 600KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
9,000 MILES (14 400KM)
²Change engine oil.
²Replace engine oil filter.
12,000 MILES (19 200KM)
²Change engine oil.
²Replace engine oil filter.
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Lubricate steering linkage (4x4).
²Inspect brake linings.
15,000 MILES (24 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x2).
²Inspect air cleaner element, replace as necessary.
18,000 MILES (29 000KM)
²Change engine oil.
²Replace engine oil filter.
²Drain and refill Manual transmission fluid.
²Lubricate steering linkage (4x4).
21,000 MILES (34 000KM)
²Change engine oil.
²Replace engine oil filter.
24,000 MILES (38 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Inspect brake linings.
²Inspect front wheel bearings, Clean and repack if
required (4x2).
27,000 MILES (43 000KM)
²Change engine oil.
²Replace engine oil filter.
30,000 MILES (48 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage joints.
²Replace spark plugs.
²Replace air cleaner element.²Adjust drive belts.
²Drain and refill transfer case fluid.
33,000 MILES (53 000KM)
²Change engine oil.
²Replace engine oil filter.
36,000 MILES (58 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission.
²Drain and refill manual transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
39,000 MILES (62 000KM)
²Change engine oil.
²Replace engine oil filter.
42,000 MILES (67 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
45,000 MILES (72 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x2).
²Inspect air cleaner element, replace as necessary.
48,000 MILES (77 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Inspect brake linings.
51,000 MILES (82 000KM)
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant.
54,000 MILES (86 400KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill Manual transmission fluid.
57,000 MILES (91 000KM)
²Change engine oil.
²Replace engine oil filter.
60,000 MILES (96 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage joints.
²Replace spark plugs.
0 - 6 LUBRICATION AND MAINTENANCEJ
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Replace ignition wires.
²Adjust or replace drive belts.
²Replace fuel filter. See note #1.
²Inspect brake linings.
²Drain and refill transfer case.
63,000 MILES (102 000KM)
²Change engine oil.
²Replace engine oil filter.
66,000 MILES (105 600KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
69,000 MILES (110 000KM)
²Change engine oil.
²Replace engine oil filter.
72,000 MILES (115 200KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill Manual transmission fluid.
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Inspect brake linings.
75,000 MILES (120 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x2).
²Inspect air cleaner element, replace as necessary.
78,000 MILES (125 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
81,000 MILES (130 000KM)
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant.
84,000 MILES (134 400KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
87,000 MILES (140 000KM)
²Change engine oil.
²Replace engine oil filter.
90,000 MILES (144 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Replace spark plugs.
²Drain and refill Manual transmission fluid.
²Replace air cleaner element.
²Adjust drive belts.
²Drain and refill transfer case fluid.
93,000 MILES (149 000KM)
²Change engine oil.
²Replace engine oil filter.
96,000 MILES (154 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
99,000 MILES (158 400KM)
²Change engine oil.
²Replace engine oil filter.
102,000 MILES (163 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
105,000 MILES (168 000KM)
²Change engine oil.
²Replace engine oil filter.
²Inspect air cleaner element, replace as necessary.
²Lubricate steering linkage (4x2).
108,000 MILES (172 800KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill Manual transmission fluid.
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
111,000 MILES (177 600KM)
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant.
114,000 MILES (182 400KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
117,000 MILES (187 200KM)
²Change engine oil.
²Replace engine oil filter.
JLUBRICATION AND MAINTENANCE 0 - 7