distributor JEEP CHEROKEE 1995 Service Workshop Manual

INSPECTION
Inspect the cam lobes for wear.
Inspect the bearing journals for uneven wear pat-
tern or finish.
Inspect the bearings for wear.
Inspect the distributor drive gear for wear.
If the camshaft appears to have been rubbing
against the timing case cover, examine the oil pres-
sure relief holes in the rear cam journal. The oil
pressure relief holes must be free of debris.
INSTALLATION
(1) Lubricate the camshaft with Mopar Engine Oil
Supplement, or equivalent.
(2) Carefully install the camshaft to prevent dam-
age to the camshaft bearings (Fig. 8).
(3) Install the timing chain, crankshaft sprocket
and camshaft sprocket with the timing marks
aligned.
(4) Install the camshaft sprocket retaining preload
bolt. Tighten the bolt to 108 Nzm (80 ft. lbs.) torque.
(5) Lubricate the tension spring, the thrust pin
and the pin bore in the preload bolt with Mopar En-
gine Oil Supplement, or equivalent. Install the spring
and thrust pin in the preload bolt head.
(6) Install the timing case cover with a replace-
ment oil seal (Fig. 9). Refer to Timing Case Cover In-
stallation.
(7) Install the vibration damper (Fig. 9).
(8) Install the hydraulic valve tappets.
(9) Install the engine cylinder head.
(10) Install the push rods.
(11) Install the rocker arms and pivot and bridge
assemblies. Tighten each of the capscrews for each
bridge alternately, one turn at a time, to avoid dam-
aging the bridge.
(12) Install the engine cylinder head cover.
(13) Position the oil pump gear. Refer to Distribu-
tor in the Component Removal/Installation section of
Group 8D, Ignition Systems.(14) Install the distributor and ignition wires. Re-
fer to Distributor in the Component Removal/Instal-
lation section of Group 8D, Ignition Systems.
(13) Install the serpentine drive belt and tighten to
the specified tension (refer to Group 7, Cooling Sys-
tem for the proper procedure).
During installation, lubricate the hydraulic
valve tappets and all valve components with
Mopar Engine Oil Supplement, or equivalent.
The Mopar Engine Oil Supplement, or equiva-
lent must remain with the engine oil for at
least 1 609 km (1,000 miles). The oil supplement
need not be drained until the next scheduled
oil change.
(16) Install the A/C condenser and receiver/drier
assembly, if equipped (refer to Group 24, Heating and
Air Conditioning).
CAUTION: Both service valves must be opened be-
fore the air conditioning system is operated.
(17) Install the radiator, connect the hoses and fill
the cooling system to the specified level (refer to
Group 7, Cooling System for the proper procedure).
(18) Check the ignition timing and adjust as neces-
sary.
(19) Install the grille and bumper, if removed.
(20) Connect negative cable to battery.
CAMSHAFT PIN REPLACEMENT
REMOVAL
WARNING: DO NOT LOOSEN THE RADIATOR
DRAIN COCK WITH THE SYSTEM HOT AND PRES-
SURIZED BECAUSE SERIOUS BURNS FROM COOL-
ANT CAN OCCUR.
(1) Disconnect negative cable from battery.
(2) Drain the radiator. DO NOT waste reusable
coolant. Drain the coolant into a clean container.
Fig. 9 Timing Case Cover ComponentsFig. 8 Camshaft
J4.0L ENGINE 9 - 75

LUBRICATION SYSTEM
A gearÐtype positive displacement pump is
mounted at the underside of the block opposite the
No. 4 main bearing. The pump draws oil through the
screen and inlet tube from the sump at the rear of
the oil pan. The oil is driven between the drive and
idler gears and pump body, then forced through the
outlet to the block. An oil gallery in the block chan-
nels the oil to the inlet side of the full flow oil filter.
After passing through the filter element, the oil
passes from the center outlet of the filter through an
oil gallery that channels the oil up to the main gal-
lery which extends the entire length of the block.
Galleries extend downward from the main oil gal-
lery to the upper shell of each main bearing. The
crankshaft is drilled internally to pass oil from the
main bearing journals (except number 4 main bear-
ing journal) to the connecting rod journals. Each con-
necting rod bearing cap has a small squirt hole, oilpasses through the squirt hole and is thrown off as
the rod rotates. This oil throwoff lubricates the cam-
shaft lobes, distributor drive gear, cylinder walls, and
piston pins.
The hydraulic valve tappets receive oil directly
from the main oil gallery. Oil is provided to the cam-
shaft bearing through galleries. The front camshaft
bearing journal passes oil through the camshaft
sprocket to the timing chain. Oil drains back to the
oil pan under the number one main bearing cap.
The oil supply for the rocker arms and bridged
pivot assemblies is provided by the hydraulic valve
tappets which pass oil through hollow push rods to a
hole in the corresponding rocker arm. Oil from the
rocker arm lubricates the valve train components,
then passes down through the push rod guide holes
in the cylinder head past the valve tappet area, and
returns to the oil pan.
J4.0L ENGINE 9 - 79

OIL PUMP
A gear-type oil pump is mounted at the underside
of the cylinder block opposite the No.4 main bearing.
The pump incorporates a nonadjustable pressure
relief valve to limit maximum pressure to 517 kPa
(75 psi). In the relief position, the valve permits oil to
bypass through a passage in the pump body to the
inlet side of the pump.
Oil pump removal or replacement will not affect
the distributor timing because the distributor drive
gear remains in mesh with the camshaft gear.
REMOVAL
(1) Drain the engine oil.
(2) Remove the oil pan.
(3) Remove the pump-to-cylinder block attaching
bolts. Remove the pump assembly with gasket (Fig.
5).
CAUTION: If the oil pump is not to be serviced, DO
NOT disturb position of oil inlet tube and strainer
assembly in pump body. If the tube is moved within
the pump body, a replacement tube and strainer as-
sembly must be installed to assure an airtight seal.
INSTALLATION
(1) Install the oil pump on the cylinder block using
a replacement gasket. Tighten the bolts to 23 Nzm
(17 ft. lbs.) torque.
(2) Install the oil pan.
(3) Fill the oil pan with oil to the specified level.
OIL PUMP PRESSURE
The MINIMUM oil pump pressure is 89.6 kPa (13
psi) at 600 rpm. The MAXIMUM oil pump pressure
is 255-517 kPa (37-75 psi) at 1600 rpm or more.
PISTONS AND CONNECTING RODS
REMOVAL
(1) Remove the engine cylinder head cover.
(2) Remove the rocker arms, bridges and pivots.
(3) Remove the push rods.
(4) Remove the engine cylinder head.
(5) Position the pistons one at a time near the bot-
tom of the stroke. Use a ridge reamer to remove the
ridge from the top end of the cylinder walls. Use a
protective cloth to collect the cuttings.
(6) Raise the vehicle.
(7) Drain the engine oil.
(8) Remove the oil pan and gasket.
(9) Remove the connecting rod bearing caps and in-
serts. Mark the caps and rods with the cylinder bore
location. The connecting rods and caps are stamped
with a two letter combination (Fig. 1).
(10) Lower the vehicle until it is about 2 feet from
the floor.
CAUTION: Ensure that the connecting rod bolts DO
NOT scratch the crankshaft journals or cylinder
walls. Short pieces of rubber hose, slipped over the
rod bolts will provide protection during removal.
(11) Have an assistant push the piston and con-
necting rod assemblies up and through the top of the
cylinder bores (Fig. 2).
INSPECTIONÐCONNECTING ROD
CONNECTING ROD BEARINGS
Inspect the connecting rod bearings for scoring and
bent alignment tabs (Figs. 3 and 4). Check the bear-
Fig. 5 Oil Pump Assembly
Fig. 1 Stamped Connecting Rods and Caps
J4.0L ENGINE 9 - 81

energized). This is done to compensate for the re-
duced flow through injector caused by the lowered
voltage.
BRAKE SWITCHÐPCM INPUT
When the brake light switch is activated, the pow-
ertrain control module (PCM) receives an input indi-
cating that the brakes are being applied. After
receiving this input, the PCM maintains idle speed to
a scheduled rpm through control of the idle air con-
trol (IAC) motor. The brake switch input is also used
to operate the speed control system.
CAMSHAFT POSITION SENSORÐPCM INPUT
A sync signal is provided by the camshaft position
sensor located in the distributor (Fig. 5). The sync
signal from this sensor works in conjunction with the
crankshaft position sensor to provide the powertrain
control module (PCM) with inputs. This is done to es-
tablish and maintain correct injector firing order.
Refer to Camshaft Position Sensor in Group 8D, Ig-
nition System for more information.
DATA LINK CONNECTORÐPCM INPUT
The data link connector (diagnostic scan tool con-
nector) links the DRB scan tool with the powertrain
control module (PCM). The data link connector is lo-
cated in the engine compartment (Figs. 6 or 7). For
operation of the DRB scan tool, refer to the appropri-
ate Powertrain Diagnostic Procedures service man-
ual.
The data link connector uses two different pins on
the PCM. One is for Data Link Transmit and the
other is for Data Link Receive.
INTAKE MANIFOLD AIR TEMPERATURE SENSORÐ
PCM INPUT
The intake manifold air temperature sensor is in-
stalled in the intake manifold with the sensor ele-
ment extending into the air stream (Figs. 8 or 9). Thesensor provides an input voltage to the powertrain
control module (PCM) indicating intake manifold air
temperature. The input is used along with inputs
from other sensors to determine injector pulse width.
As the temperature of the air-fuel stream in the
manifold varies, the sensor resistance changes. This
results in a different input voltage to the PCM.
CRANKSHAFT POSITION SENSORÐPCM INPUT
This sensor is a Hall Effect device that detects
notches in the flywheel (manual transmission), or
flexplate (automatic transmission).
This sensor is used to indicate to the powertrain
control module (PCM) that a spark and or fuel injec-
tion event is to be required. The output from this
sensor, in conjunction with the camshaft position sen-
sor signal, is used to differentiate between fuel injec-
tion and spark events. It is also used to synchronize
the fuel injectors with their respective cylinders.
Refer to Group 8D, Ignition System for more crank-
shaft position sensor information.
Fig. 5 Camshaft Position Sensor
Fig. 6 Data Link ConnectorÐYJ ModelsÐTypical
Fig. 7 Data Link ConnectorÐXJ ModelsÐTypical
14 - 22 FUEL SYSTEM COMPONENT DESCRIPTION/SYSTEM OPERATIONJ

The throttle body has an air control passage that
provides air for the engine at idle (the throttle plate
is closed). The IAC motor pintle protrudes into the
air control passage and regulates air flow through it.
Based on various sensor inputs, the powertrain con-
trol module (PCM) adjusts engine idle speed by mov-
ing the IAC motor pintle in and out of the air control
passage. The IAC motor is positioned when the igni-
tion key is turned to the On position.
A (factory adjusted) set screw is used to mechani-
cally limit the position of the throttle body throttle
plate.Never attempt to adjust the engine idle
speed using this screw.All idle speed functions are
controlled by the PCM.
IGNITION COILÐPCM OUTPUT
System voltage is supplied to the ignition coil pos-
itive terminal. The powertrain control module (PCM)
operates the ignition coil.Base (initial) ignition
timing is not adjustable.The PCM adjusts ignition
timing to meet changing engine operating conditions.
The ignition coil is located near the distributor
(Fig. 22).
Refer to Group 8D, Ignition System for additional
information.
MALFUNCTION INDICATOR LAMPÐPCM OUTPUT
The malfunction indicator lamp illuminates each
time the ignition key is turned on. It will stay on for
approximately three seconds as a bulb test. The lamp
is displayed on the instrument panel as the CHECK
ENGINE lamp (Figs. 23 or 24).
If the powertrain control module (PCM) receives an
incorrect signal, or no signal from certain sensors or
emission related systems, the lamp is turned on. This
is a warning that the PCM has recorded a system or
sensor malfunction. In some cases, when a problem is
declared, the PCM will go into a limp-in mode. This
is an attempt to keep the system operating. It signals
an immediate need for service.The lamp can also be used to display a Diagnostic
Trouble Code (DTC). Cycle the ignition switch On-
Off-On-Off-On within three seconds and any codes
stored in the PCM memory will be displayed. This is
done in a series of flashes representing digits. Refer
to On-Board Diagnostics in the General Diagnosis
section of this group for more information.
RADIATOR FAN RELAYÐPCM OUTPUT
XJ MODELS ONLY
The electric radiator cooling fan used in XJ models
(equipped with 4.0L engine, heavy duty cooling
and/or air conditioning) is controlled by the power-
train control module (PCM) through radiator fan re-
lay. The relay is energized when coolant temperature
is above 103ÉC (217ÉF). It will then de-energize when
Fig. 22 Ignition CoilÐTypical
Fig. 23 Check Engine LampÐXJ ModelsÐTypical
Fig. 24 Check Engine LampÐYJ ModelsÐTypical
14 - 28 FUEL SYSTEM COMPONENT DESCRIPTION/SYSTEM OPERATIONJ

MULTI-PORT FUEL INJECTION (MFI)ÐGENERAL DIAGNOSIS
INDEX
page page
Automatic Shutdown (ASD) Relay Testing....... 46
Camshaft Position Sensor Test............... 46
Crankshaft Position Sensor Test.............. 47
Diagnostic Trouble Code (DTC)............... 54
DRB Scan Tool........................... 54
Engine Coolant Temperature Sensor Test....... 46
Extended Idle Switch Test................... 48
Fuel Injector Test......................... 51
Fuel Pump Relay Testing................... 47
Fuel System Pressure Test.................. 51
General Information....................... 35
Idle Air Control Motor Test................... 49
Intake Manifold Air Temperature Sensor Test..... 46Manifold Absolute Pressure (Map) Sensor Test . . . 47
On-Board Diagnostics (OBD)................. 51
Oxygen Sensor (O2S) Heating Element Test..... 48
Pcm System Schematics.................... 41
Powertrain Control Module (PCM) 60-Way
Connector............................. 40
RelaysÐOperation/Testing.................. 50
Starter Motor Relay Test.................... 51
Throttle Position Sensor (TPS) Test............ 48
Torque Converter Clutch Relay Test............ 48
Vehicle Speed Sensor Test.................. 48
Visual Inspection.......................... 35
GENERAL INFORMATION
All 2.5L 4-cylinder and 4.0L 6-cylinder engines are
equipped with sequential Multi-Port Fuel Injection
(MFI). The MFI system provides precise air/fuel ra-
tios for all driving conditions.
VISUAL INSPECTION
A visual inspection for loose, disconnected, or incor-
rectly routed wires and hoses should be made. This
should be done before attempting to diagnose or ser-
vice the fuel injection system. A visual check will
help spot these faults and save unnecessary test and
diagnostic time. A thorough visual inspection will in-
clude the following checks:
(1) Verify that the 60-way connector is fully in-
serted into the connector of the powertrain control
module (PCM) (Figs. 1 or 2). Verify that the connec-
tor mounting bolt is tightened to 4 Nzm (35 in. lbs.)
torque.(2) Inspect the battery cable connections. Be sure
they are clean and tight.
(3) Inspect fuel pump relay and air conditioning
compressor clutch relay (if equipped). Inspect ASD
relay and radiator fan relay (if equipped) connec-
tions. Inspect starter motor relay connections. In-
spect relays for signs of physical damage and
corrosion. The relays are installed in the power dis-
tribution center (PDC) (Figs. 3 or 4).
(4) Inspect ignition coil connections. Verify that coil
secondary cable is firmly connected to coil (Figs. 5 or
6).
(5) Verify that distributor cap is correctly attached
to distributor. Be sure that spark plug cables are
firmly connected to the distributor cap and the spark
plugs in their correct firing order. Be sure that coil
cable is firmly connected to distributor cap and coil.
Be sure that camshaft position sensor wire connector
is firmly connected to harness connector (Figs. 7 or
8). Inspect spark plug condition. Refer to Group 8D,
Fig. 1 PCMÐYJ Models
Fig. 2 PCMÐXJ Models
JFUEL SYSTEM GENERAL DIAGNOSIS 14 - 35

Ignition System. Connect vehicle to an oscilloscope
and inspect spark events for fouled or damaged spark
plugs or cables.(6) Verify that generator output wire, generator
connector and ground wire are firmly connected to
the generator (Fig. 9).
Fig. 3 PDCÐYJ Models
Fig. 4 PDCÐXJ Models
Fig. 5 Ignition CoilÐ2.5L EngineÐTypical
Fig. 6 Ignition CoilÐ4.0L EngineÐTypical
Fig. 7 Distributor and WiringÐ2.5L EngineÐTypical
Fig. 8 Distributor and WiringÐ4.0L EngineÐTypical
14 - 36 FUEL SYSTEM GENERAL DIAGNOSISJ

line. However, these could result in a rich or lean
condition causing an oxygen sensor DTC to be stored
in the PCM.
Secondary Ignition Circuit:The PCM cannot
detect an inoperative ignition coil, fouled or worn
spark plugs, ignition cross firing, or open circuited
spark plug cables.
Engine Timing:The PCM cannot detect an incor-
rectly indexed timing chain, camshaft sprocket or
crankshaft sprocket. The PCM also cannot detect an
incorrectly indexed distributor. However, these could
result in a rich or lean condition causing an oxygen
sensor DTC to be stored in the PCM.
Cylinder Compression:The PCM cannot detect
uneven, low, or high engine cylinder compression.
Exhaust System:The PCM cannot detect a
plugged, restricted or leaking exhaust system.
Fuel Injector Malfunctions:The PCM cannot de-
termine if the fuel injector is clogged, or the wrong
injector is installed. However, these could result in a
rich or lean condition causing an oxygen sensor DTC
to be stored in the PCM.
Excessive Oil Consumption:Although the PCM
monitors exhaust stream oxygen content through ox-
ygen sensor (closed loop), it cannot determine exces-
sive oil consumption.
Throttle Body Air Flow:The PCM cannot detect
a clogged or restricted air cleaner inlet or air cleaner
element.
Evaporative System:The PCM will not detect a
restricted, plugged or loaded EVAP canister.
Vacuum Assist:Leaks or restrictions in the vac-
uum circuits of vacuum assisted engine control sys-
tem devices are not monitored by the PCM. However,
a vacuum leak at the MAP sensor will be monitored
and a diagnostic trouble code (DTC) will be gener-
ated by the PCM.
Powertrain Control Module (PCM) System
Ground:The PCM cannot determine a poor system
ground. However, a DTC may be generated as a re-
sult of this condition.
Powertrain Control Module (PCM) Connector
Engagement:The PCM cannot determine spread or
damaged connector pins. However, a DTC may be
generated as a result of this condition.
HIGH AND LOW LIMITS
The powertrain control module (PCM) compares in-
put signal voltages from each input device. It will es-
tablish high and low limits that are programmed into
it for that device. If the input voltage is not within
specifications and other Diagnostic Trouble Code
(DTC) criteria are met, a DTC will be stored in mem-
ory. Other DTC criteria might include engine rpm
limits or input voltages from other sensors or
switches. The other inputs might have to be sensed
by the PCM when it senses a high or low input volt-
age from the control system device in question.
ACCESSING DIAGNOSTIC TROUBLE CODES
A stored diagnostic trouble code (DTC) can be dis-
played by cycling the ignition key On-Off-On-Off-On
within three seconds and observing the malfunction
indicator lamp. This lamp is displayed on the instru-
ment panel as the CHECK ENGINE lamp (Figs. 45
or 46).
They can also be displayed through the use of the
Diagnostic Readout Box (DRB) scan tool. The DRB
scan tool connects to the data link connector in the
engine compartment (Figs. 47 or 48). For operation of
the DRB, refer to the appropriate Powertrain Diag-
nostic Procedures service manual.
Fig. 45 Check Engine LampÐXJ ModelsÐTypical
Fig. 46 Check Engine LampÐYJ ModelsÐTypical
JFUEL SYSTEM GENERAL DIAGNOSIS 14 - 53

BUMPERÐXJ, LIFTGATE LICENSE PLATE
SCREW ANCHOR.....................23-65
BUMPERÐXJ, REAR SEATBACK LATCH
STRIKER...........................23-84
BUMPERS......................13-16,13-5
BUS, CCD; FUEL/IGNITION (XJ).......8W-30-5
BUSHING AND PISTON CLEARANCE,
AW-4 .............................21-339
BUSHING REPLACEMENT, AXLE......2-12,2-34
BUSHING REPLACEMENT, LEAF SPRING
EYE; FRONT SUSPENSION AND AXLE.....2-17
BUSHING REPLACEMENT, LEAF SPRING
EYE; REAR SUSPENSION AND AXLES . . . 3-5,3-7
BUSHINGS, CLUTCH AND BRAKE PEDAL . . . 0-22
BUZZER, COMBINATION; INTERIOR
LIGHTING (YJ)....................8W-44-1
BUZZER MODULE.................8U-1,8U-2
BUZZER MODULE SCHEMATIC - YJ.......8U-4
CABLE, ACCELERATOR PEDAL AND
THROTTLE.....................14-17,14-58
CABLE ADJUSTMENT, PARK INTERLOCK . 21-195
CABLE ADJUSTMENT, SHIFT...........21-195
CABLE ADJUSTMENT, TRANSMISSION
THROTTLE.........................21-194
CABLE ADJUSTMENT, TRANSMISSION
THROTTLE VALVE....................21-71
CABLE ADJUSTMENT (XJ), PARK
INTERLOCK........................21-101
CABLE ADJUSTMENT (XJ), SHIFT.......21-100
CABLE ADJUSTMENT (XJ/YJ), THROTTLE
VALVE..............................21-101
CABLE REMOVE/INSTALL, SERVO.......8H-10
CABLE REPLACEMENT, TRANSMISSION
THROTTLE.........................21-193
CABLE REPLACEMENT (XJ), PARKING
BRAKE REAR.........................5-67
CABLE REPLACEMENT (YJ), PARKING
BRAKE FRONT........................5-67
CABLE REPLACEMENT (YJ), PARKING
BRAKE REAR.........................5-68
CABLE REPLACEMENTÐXJ, LATCH
RELEASE...........................23-11
CABLE RESISTANCE, SPARK PLUG......8D-14
CABLE, SERVO.......................8H-1
CABLE, SPEEDOMETER.................0-33
CABLE TENSIONER ADJUSTMENT
(XJ/YJ), PARKING BRAKE...............5-69
CABLE TENSIONER REPLACEMENT (XJ),
PARKING BRAKE......................5-66
CABLE, THROTTLE...................14-17
CABLE/LINKAGE ADJUSTMENT,
GEARSHIFT.........................21-71
CABLES, DISTRIBUTOR CAP AND
ROTOR, IGNITION.....................0-20
CABLES, SPARK PLUG SECONDARY.....8D-14,
8D-24
CABLES, VENT DOOR CONTROL.........24-32
CALIBRATION, COMPASS...............8C-5
CALIPER ASSEMBLY...................5-50
CALIPER CLEANING AND INSPECTION.....5-50
CALIPER DISASSEMBLY................5-48
CALIPER INSTALLATION................5-51
CALIPER OPERATION AND WEAR
COMPENSATION......................5-45
CALIPER REMOVAL....................5-48
CAMSHAFT......................9-32,9-74
CAMSHAFT PIN REPLACEMENT......9-34,9-75
CAMSHAFT POSITION SENSOR; FUEL
SYSTEM............................14-60
CAMSHAFT POSITION SENSOR;
FUEL/IGNITION (XJ)................8W-30-3
CAMSHAFT POSITION SENSOR;
FUEL/IGNITION (YJ)................8W-30-3
CAMSHAFT POSITION SENSOR;
IGNITION SYSTEMS..............8D-17,8D-2
CAMSHAFT POSITION SENSOR;
FUEL/IGNITION (XJ-RHD)............8W-30-3
CAMSHAFT POSITION SENSOR TEST;
FUEL SYSTEM.......................14-46
CAMSHAFT POSITION SENSOR TEST;
IGNITION SYSTEMS
...................8D-6
CAMSHAFT POSITION SENSORÐPCM
INPUT
.............................14-22
(CANADA ONLY)ÐXJ, DAYTIME
RUNNING LIGHTS
....................8L-15
(CANADA ONLY)ÐYJ, DAYTIME
RUNNING LIGHTS
....................8L-30
CANISTER, EVAP
..................25-4,25-7CAP AND ROTOR, IGNITION CABLES,
DISTRIBUTOR........................0-20
CAP, DISTRIBUTOR....................8D-7
CAP, FUEL TANK FILLER TUBE;
EMISSION CONTROL SYSTEMS......25-4,25-7
CAP, FUEL TANK FILLER TUBE; FUEL
SYSTEM............................14-13
CAP, RADIATOR PRESSURE.............7-25
CAPACITIES, COOLING SYSTEM..........7-45
CAPACITIES, FLUID.....................0-3
CAPACITIES, FUEL TANK..........14-13,14-67
CAPACITY TEST, FUEL PUMP............14-7
CAR REPLACEMENT, PITMAN SHAFT
SEALSÐIN.........................19-23
CARDAN (CV), DOUBLE................16-11
CARDAN, SINGLE....................16-10
CARGO BARRIERÐXJ................23-101
CARGO LAMP AND DOME LAMP;
INTERIOR LIGHTING (XJ-RHD)........8W-44-1
CARGO LAMP, COURTESY LAMPS AND
DOME LAMP; INTERIOR LIGHTING (XJ) . 8W-44-1
CARGO LAMPÐXJ...................23-94
CARPET/MATÐXJ, FRONT.............23-99
CARPET/MATÐXJ, REAR.............23-100
CARPETÐYJ.......................23-156
CARPETS AND FLOOR MATSÐXJ.......23-99
CARRIERÐYJ, EXTERNAL SPARE/
WHEEL TIRE.......................23-133
CASE (4WD VEHICLES), TRANSFER........0-24
CASE ASSEMBLY, TRANSFER....21-294,21-319
CASE CHANGES, TRANSFER...........21-307
CASE CLEANING AND INSPECTION,
TRANSMISSION.....................21-125
CASE COVER OIL SEAL REPLACEMENT,
TIMING.........................9-30,9-73
CASE COVER, TIMING..............9-31,9-72
CASE DISASSEMBLY AND OVERHAUL,
TRANSFER...................21-289,21-310
CASE IDENTIFICATION, TRANSFER.....21-284,
21-307
CASE INSTALLATION, TRANSFER . 21-288,21-309
CASE LUBRICANT AND FILL LEVEL,
TRANSFER.........................21-284
CASE, NP231 TRANSFER.......21-283,21-305
CASE, NP242 TRANSFER.......21-307,21-331
CASE OVERHAUL, FIRST-REVERSE
BRAKE PISTON AND TRANSMISSION....21-247
CASE REMOVAL, TRANSFER.....21-287,21-309
CASE SKID PLATE, TRANSFER......13-15,13-3
CASE SPECIFICATIONS, TRANSMISSION/
TRANSFER.........................21-333
CATALYTIC CONVERTER............11-1,11-4
CATALYTIC CONVERTOR................25-1
CAUTIONS, AND WARNINGS, NOTES;
WIRING DIAGRAMSÐGENERAL
INFORMATION (XJ)...................8W-1
CCD BUS; FUEL/IGNITION (XJ)........8W-30-5
CENTER HIGH MOUNTED STOP LAMP
(CHMSL)ÐXJ.......................8L-12
CENTER HIGH MOUNTED STOP LAMP
(CHMSL)ÐYJ.......................8L-28
CERTIFICATION LABEL, VEHICLE SAFETY . Intro.-4
CHAIN AND SPROCKETS, TIMING....9-31,9-73
CHANGE AND FILTER REPLACEMENT,
ENGINE OIL
..........................0-16
CHANGE, LUBRICANT; FRONT
SUSPENSION AND AXLE
................2-23
CHANGE, LUBRICANT; REAR
SUSPENSION AND AXLES
...........3-13,3-31
CHANGE, REFILLING AFTER OVERHAUL
OR FLUID/FILTER
..............21-100,21-182
CHANGES AND PARTS
INTERCHANGEABILITY, TRANSMISSION
. . . 21-67
CHANGES, TRANSFER CASE
...........21-307
CHANNEL REPLACEMENTÐYJ, DOOR
FRAME GLASS
......................23-142
CHARGING, BATTERY
..................8A-7
CHARGING REFRIGERANT SYSTEM
......24-11
CHARGING SYSTEM; BATTERY/
STARTING/CHARGING SYSTEMS
DIAGNOSTICS
.......................8A-17
CHARGING SYSTEM; CHARGING
SYSTEM (XJ)
.....................8W-20-1
CHARGING SYSTEM; CHARGING
SYSTEM (XJ-RHD)
.................8W-20-1
CHARGING SYSTEM; CHARGING
SYSTEM (YJ)
.....................8W-20-1CHARGING SYSTEM INDICATOR LAMP;
INSTRUMENT CLUSTER (XJ).........8W-40-3
CHARGING SYSTEM SPECIFICATIONS....8A-23
CHARGING TIME TABLE, BATTERY........8A-8
CHART, MAIN BEARING FITTING......9-48,9-90
CHART, XJ PERFORMANCE
TEMPERATURE AND PRESSURE.........24-13
CHART, YJ PERFORMANCE
TEMPERATURE AND PRESSURE.........24-13
CHARTÐAX 15 MANUAL
TRANSMISSION, SELECTIVE SNAP
RING.............................21-334
CHARTS, BRAKELINE..................5-12
CHARTS, DIAGNOSIS GUIDES...........21-77
CHARTS, GEARTRAIN OPERATION AND
APPLICATION.......................21-169
CHARTS, INSPECTION AND DIAGNOSIS.....6-4
CHASSIS AND BODY COMPONENTS.......0-28
CHASSIS COMPONENT AND WHEEL
BEARING LUBRICANTS.................0-28
CHECK VALVE TEST, POWER BOOSTER.....5-9
CHECKING FLUID LEVEL AND
CONDITION........................21-182
CHECKS, PRELIMINARY.................7-5
CHIME/BUZZER MODULE; INTERIOR
LIGHTING (XJ)....................8W-44-2
CHIME/BUZZER MODULE; INTERIOR
LIGHTING (XJ-RHD)................8W-44-2
CHMSL LAMPS, STOP LAMPS; REAR
LIGHTING (XJ)....................8W-51-1
CHMSL LAMPS, STOP LAMPS; REAR
LIGHTING (XJ-RHD)................8W-51-1
CHMSL LAMPS, STOP LAMPS; REAR
LIGHTING (YJ)....................8W-51-1
(CHMSL)ÐXJ, CENTER HIGH MOUNTED
STOP LAMP.........................8L-12
(CHMSL)ÐYJ, CENTER HIGH MOUNTED
STOP LAMP.........................8L-28
CIGAR LIGHTER; HORN/CIGAR LIGHTER . . . 8E-1
CIGAR LIGHTER; HORN/CIGAR LIGHTER
(YJ).............................8W-41-1
CIGAR LIGHTER; INSTRUMENT CLUSTER
(XJ).............................8W-40-1
CIRCUIT IDENTIFICATION; WIRING
DIAGRAMSÐGENERAL INFORMATION
(XJ)...............................8W-1
CIRCUIT REMOVE/INSTALL, PRINTED....8E-19,
8E-40
CIRCUIT SENSEÐPCM INPUT, IGNITION . . 14-23
CIRCUIT VOLTAGE, OPEN...............8A-6
CLAMPS, FUEL TUBES/LINES/HOSES . 14-62,14-9
CLASSIFICATION OF LUBRICANTS.........0-2
CLASSIFICATIONS AND RATINGS,
BATTERY...........................8A-23
CLEANER, AIR.......................14-29
CLEANER ELEMENT, AIR; EMISSION
CONTROL SYSTEMS...................25-7
CLEANER ELEMENT, AIR; FUEL SYSTEM . . 14-59
CLEANER ELEMENT, AIR; LUBRICATION
AND MAINTENANCE...................0-18
CLEANER HOUSING, AIR...............14-58
CLEANING AND INSPECTION, CALIPER....5-50
CLEANING AND INSPECTION, GEAR......19-42
CLEANING AND INSPECTION,
TRANSMISSION CASE................21-125
CLEANING OF TIRES...................22-2
CLEANING/INSPECTION; FRONT
SUSPENSION AND AXLE
................2-37
CLEANING/INSPECTION; REAR
SUSPENSION AND AXLES
...............3-20
CLEANING/REVERSE FLUSHING,
COOLING SYSTEM
....................7-22
CLEARANCE AND RAMP ANGLE,
GROUND
............................0-11
CLEARANCE, AW-4 BUSHING AND
PISTON
...........................21-339
CLOCKSPRING
.......................19-51
CLUSTER AND GAUGE HOUSINGSÐYJ,
INSTRUMENT
......................23-151
CLUSTER ASSEMBLY REMOVE/INSTALL
. . 8E-17,
8E-35
CLUSTER BEZELÐXJ, INSTRUMENT
.....23-80
CLUSTER BEZELÐYJ, INSTRUMENT
....23-151
CLUSTER CONNECTORS (RHD)
.........8E-11
CLUSTER, GAUGE PACKAGE
.......8E-31,8E-43
CLUSTER GROUND; INSTRUMENT
CLUSTER (XJ)
.....................8W-40-3
4 INDEXJ
Description Group-Page Description Group-Page Description Group-Page

DIAGRAM INDEX; AIR CONDITIONING/
HEATER (XJ-RHD)..................8W-42-2
DIAGRAM INDEX; AIR CONDITIONING/
HEATER (YJ)...............8W-42-1,8W-42-2
DIAGRAM INDEX; ANTI-LOCK BRAKES
(XJ).............................8W-32-3
DIAGRAM INDEX; ANTI-LOCK BRAKES
(XJ-RHD).........................8W-32-3
DIAGRAM INDEX; ANTI-LOCK BRAKES
(YJ).............................8W-32-2
DIAGRAM INDEX; CHARGING SYSTEM
(XJ).............................8W-20-1
DIAGRAM INDEX; CHARGING SYSTEM
(XJ-RHD).........................8W-20-1
DIAGRAM INDEX; CHARGING SYSTEM
(YJ).............................8W-20-1
DIAGRAM INDEX; FRONT LIGHTING (XJ) . 8W-50-2
DIAGRAM INDEX; FRONT LIGHTING
(XJ-RHD).........................8W-50-3
DIAGRAM INDEX; FRONT LIGHTING (YJ) . 8W-50-2
DIAGRAM INDEX; FUEL/IGNITION (YJ) . . 8W-30-5
DIAGRAM INDEX; FUSE/FUSE BLOCK
(XJ).............................8W-10-1
DIAGRAM INDEX; FUSE/FUSE BLOCK
(XJ-RHD).........................8W-10-1
DIAGRAM INDEX; FUSE/FUSE BLOCK
(YJ).............................8W-10-1
DIAGRAM INDEX; GROUND
DISTRIBUTION (XJ)................8W-15-1
DIAGRAM INDEX; GROUND
DISTRIBUTION (XJ-RHD)............8W-15-1
DIAGRAM INDEX; GROUND
DISTRIBUTION (YJ)..................8W-15-1
DIAGRAM INDEX; HEATED REAR
WINDOW (XJ).....................8W-48-1
DIAGRAM INDEX; HEATED REAR
WINDOW (XJ-RHD).................8W-48-1
DIAGRAM INDEX; HEATED REAR
WINDOW (YJ).....................8W-48-1
DIAGRAM INDEX; HORN/CIGAR LIGHTER . . . 8E-1
DIAGRAM INDEX; HORN/CIGAR LIGHTER
(YJ).............................8W-41-1
DIAGRAM INDEX; INSTRUMENT
CLUSTER (XJ).............8W-40-1,8W-40-3
DIAGRAM INDEX; INSTRUMENT
CLUSTER (XJ-RHD)................8W-40-3
DIAGRAM INDEX; INSTRUMENT
CLUSTER (YJ).....................8W-40-2
DIAGRAM INDEX; INTERIOR LIGHTING
(XJ).............................8W-44-2
DIAGRAM INDEX; INTERIOR LIGHTING
(XJ-RHD).........................8W-44-2
DIAGRAM INDEX; INTERIOR LIGHTING
(YJ).............................8W-44-2
DIAGRAM INDEX; OVERHEAD CONSOLE
(XJ).............................8W-49-1
DIAGRAM INDEX; OVERHEAD CONSOLE
(XJ-RHD).........................8W-49-1
DIAGRAM INDEX; POWER DISTRIBUTION
(XJ).............................8W-11-1
DIAGRAM INDEX; POWER DISTRIBUTION
(XJ-RHD).........................8W-11-1
DIAGRAM INDEX; POWER DISTRIBUTION
(YJ).............................8W-11-1
DIAGRAM INDEX; POWER DOOR LOCKS
(XJ)
.............................8W-61-1
DIAGRAM INDEX; POWER DOOR LOCKS
(XJ-RHD)
.........................8W-61-1
DIAGRAM INDEX; POWER MIRRORS
(XJ)
.............................8W-62-1
DIAGRAM INDEX; POWER MIRRORS
(XJ-RHD)
.........................8W-62-1
DIAGRAM INDEX; POWER SEAT (XJ)
. . . 8W-63-1
DIAGRAM INDEX; POWER SEAT
(XJ-RHD)
.........................8W-63-1
DIAGRAM INDEX; POWER WINDOWS
(XJ)
.............................8W-60-2
DIAGRAM INDEX; POWER WINDOWS
(XJ-RHD)
.........................8W-60-2
DIAGRAM INDEX; REAR LIGHTING (XJ)
. 8W-51-1
DIAGRAM INDEX; REAR LIGHTING
(XJ-RHD)
.........................8W-51-1
DIAGRAM INDEX; REAR LIGHTING (YJ)
. 8W-51-1
DIAGRAM INDEX; STARTING SYSTEM
(XJ)
.............................8W-21-1
DIAGRAM INDEX; STARTING SYSTEM
(XJ-RHD)
.........................8W-21-1DIAGRAM INDEX; STARTING SYSTEM
(YJ).............................8W-21-1
DIAGRAM INDEX; TRAILER TOW (XJ) . . 8W-54-1
DIAGRAM INDEX; TRAILER TOW
(XJ-RHD).........................8W-54-1
DIAGRAM INDEX; TRANSMISSION
CONTROLS (XJ)...................8W-31-1
DIAGRAM INDEX; TRANSMISSION
CONTROLS (XJ-RHD)...............8W-31-1
DIAGRAM INDEX; TRANSMISSION
CONTROLS (YJ)...................8W-31-1
DIAGRAM INDEX; TURN SIGNALS (XJ) . 8W-52-1
DIAGRAM INDEX; TURN SIGNALS
(XJ-RHD).........................8W-52-1
DIAGRAM INDEX; TURN SIGNALS (YJ) . 8W-52-1
DIAGRAM INDEX; VEHICLE SPEED
CONTROL (XJ)....................8W-33-1
DIAGRAM INDEX; VEHICLE SPEED
CONTROL (XJ-RHD)................8W-33-1
DIAGRAM INDEX; WIPERS (XJ).......8W-53-2
DIAGRAM INDEX; WIPERS (XJ-RHD) . . . 8W-53-2
DIAGRAM INDEX; WIPERS (YJ).......8W-53-2
DIAGRAM INDEX; FUEL/IGNITION
(XJ-RHD).........................8W-30-5
DIAGRAM INDEXÐ2.5L ENGINE;
FUEL/IGNITION (XJ)................8W-30-6
DIAGRAM INDEXÐ4.0L ENGINE;
FUEL/IGNITION (XJ)................8W-30-6
DIFFERENTIAL AND PINION
MEASUREMENT.......................2-40
DIFFERENTIAL ASSEMBLY; FRONT
SUSPENSION AND AXLE.................2-38
DIFFERENTIAL ASSEMBLY; REAR
SUSPENSION AND AXLES...............3-21
DIFFERENTIAL DISASSEMBLY; FRONT
SUSPENSION AND AXLE................2-35
DIFFERENTIAL DISASSEMBLY; REAR
SUSPENSION AND AXLES...............3-18
DIFFERENTIAL INSTALLATION............2-44
DIFFERENTIAL, LIMITED SLIP............3-10
DIFFERENTIAL MEASUREMENT AND
INSTALLATION........................3-25
DIFFERENTIAL OVERHAUL..............3-46
DIFFERENTIAL REMOVAL; FRONT
SUSPENSION AND AXLE................2-34
DIFFERENTIAL REMOVAL; REAR
SUSPENSION AND AXLES...............3-18
DIFFERENTIAL SERVICE................3-34
DIFFERENTIAL SHIM PACK
MEASUREMENT AND ADJUSTMENT.......2-43
DIFFERENTIAL, TRAC-LOK..............3-45
DIMENSION DATA, VEHICLE.....Intro.-5,Intro.-6
DIMENSIONS, AW-4 VALVE BODY CHECK
BALL.............................21-341
DIMENSIONS, DESIGNATIONS,
LABELS/PLATES, CODES..............Intro.-1
DIMENSIONS, FRAME.............13-13,13-1
DIMMER SWITCH REMOVE/INSTALL,
HEADLAMP OR PANEL................8E-42
DIMMER SWITCH REPLACEMENTÐYJ,
HEADLAMP.........................8L-26
DIMMING MODULE; FRONT LIGHTING
(XJ-RHD).........................8W-50-1
DIODE REPLACEMENT; WIRING
DIAGRAMSÐGENERAL INFORMATION
(XJ)...............................8W-8
DIRECT CLUTCH OVERHAUL...........21-228
DISASSEMBLY AND INSPECTION, VALVE
BODY.............................21-147
DISASSEMBLY AND OVERHAUL,
TRANSFER CASE..............21-289,21-310
DISASSEMBLY AND OVERHAUL,
TRANSMISSION.................21-37,21-5
DISASSEMBLY, CALIPER................5-48
DISASSEMBLY, DIFFERENTIAL; FRONT
SUSPENSION AND AXLE................2-35
DISASSEMBLY, DIFFERENTIAL; REAR
SUSPENSION AND AXLES...............3-18
DISASSEMBLY, TRANSMISSION . . 21-119,21-201
DISASSEMBLYÐCOLUMN OR CONSOLE
SHIFT..............................19-60
DISC AND PLATE THICKNESS, AW-4
CLUTCH...........................21-338
DISC BRAKE ROTOR REFINISHING
........5-53
DISC BRAKE ROTOR RUNOUT
...........5-52
DISC BRAKE ROTOR THICKNESS
.........5-52
DISC BRAKES
........................5-45
DISC BRAKESHOE INSTALLATION
.........5-47DISC BRAKESHOE REMOVAL............5-46
DISC INSTALLATION, CLUTCH COVER.....6-10
DISC REMOVAL, CLUTCH COVER.........6-10
DISC RUNOUT, CLUTCH COVER...........6-3
DISCHARGE (ESD) SENSITIVE DEVICES,
ELECTROSTATIC; WIRING
DIAGRAMSÐGENERAL INFORMATION
(XJ)...............................8W-2
DISCONNECT AXLEÐYJ VEHICLES,
VACUUM............................2-27
DISCONNECT AXLE/SHIFT MOTOR
DIAGNOSIS..........................2-29
DISCONNECT AXLE/SHIFT MOTOR
DIAGNOSIS (CONT'D)..................2-30
DISPLAY, ABS WARNING LIGHT...........5-3
DISPLAY SYMBOLS, INTERNATIONAL
VEHICLE CONTROL..................Intro.-5
DISPLAY SYMBOLS, VEHICLE CONTROL . Intro.-10
DISPOSALÐXJ, LIFTGATE SUPPORT
ROD CYLINDER......................23-63
DISTRIBUTOR.......................8D-19
DISTRIBUTOR CAP....................8D-7
DISTRIBUTOR CAP AND ROTOR,
IGNITION CABLES.....................0-20
DISTRIBUTOR ROTOR.................8D-8
DISTRIBUTORS.......................8D-4
DOME LAMP, CARGO LAMP; INTERIOR
LIGHTING (XJ-RHD)................8W-44-1
DOME LAMP, CARGO LAMP, COURTESY
LAMPS; INTERIOR LIGHTING (XJ).....8W-44-1
DOME LAMP REPLACEMENTÐXJ.........8L-17
DOME LAMPÐXJ....................23-93
DOME LAMPS, COURTESY LAMPS;
INTERIOR LIGHTING (YJ)............8W-44-1
DOME/CARGO LAMP BULB
REPLACEMENTÐYJ VEHICLES,
HARDTOP..........................8L-31
DOME/COURTESY LAMP SERVICE
INFORMATIONÐXJ...................8L-16
DOME/COURTESY LAMP SERVICE
INFORMATIONÐYJ...................8L-31
DOME/COURTESY LAMP TROUBLE
DIAGNOSISÐXJ.....................8L-16
DOME/COURTESY LAMP TROUBLE
DIAGNOSISÐYJ.....................8L-31
DOOR ALIGNMENT ADJUSTMENTÐ
MAJOR............................23-41
DOOR ALIGNMENT ADJUSTMENTÐ
MINOR.............................23-37
DOOR ASSIST HANDLEÐYJ, FULL-
METAL............................23-136
DOOR BUMPERSÐXJ, FUEL FILLER.....23-27
DOOR CONTROL CABLES, VENT.........24-32
DOOR EDGE GUARD/EDGE PROTECTOR
STRIPÐXJ.........................23-54
DOOR EXTERNAL HANDLEÐXJ.........23-48
DOOR FRAME GLASS CHANNEL
REPLACEMENTÐYJ.................23-142
DOOR HINGE/HINGE PIN
REPLACEMENTÐXJ..................23-52
DOOR HINGESÐYJ, FULL-METAL.......23-140
DOOR INSIDE LATCH RELEASE AND
LOCK RODSÐXJ.....................23-50
DOOR JAMB SWITCH, DRIVER'S.....8U-1,8U-2
DOOR KEY LOCK CYLINDERÐXJ........23-47
DOOR KEY LOCK CYLINDERÐYJ,
FULL-METAL.......................23-139
DOOR LATCH ADJUSTMENTÐXJ........23-48
DOOR LATCH EXTERNAL RELEASE
HANDLEÐYJ, FULL-METAL............23-140
DOOR LATCH INSIDE RELEASE AND
LOCK HANDLEÐYJ, FULL-METAL.......23-137
DOOR LATCH STRIKERÐYJ, HALF-
METAL............................23-135
DOOR LATCHÐXJ....................23-49
DOOR LATCHÐYJ, FULL-METAL........23-140
DOOR LOCKS, POWER; POWER DOOR
LOCKS (XJ).......................8W-61-1
DOOR LOCKS, POWER; POWER DOOR
LOCKS (XJ-RHD)
..................8W-61-1
DOOR MIRROR (EXTERNAL)ÐYJ, HALF
METAL
............................23-121
DOOR MOTOR SWITCH REPLACEMENT,
BLOWER MOTOR/AIR
.................24-32
DOOR OPENER STORAGE, REMOTE
GARAGE
............................8C-1
DOOR OPENING WEATHERSTRIP
SEALSÐXJ, DOOR WINDOW GLASS
.....23-55
8 INDEXJ
Description Group-Page Description Group-Page Description Group-Page