1995 JEEP XJ spark plugs

If the clearance exceeds specification using a pair
of 0.051 mm (0.002 inch) undersize bearing inserts,
measure crankshaft journal diameter with a mi-
crometer. If the journal diameter is correct, the
crankshaft bore in the cylinder block may be mis-
aligned, which requires cylinder block replacement or
machining to true bore.
Replace the crankshaft or grind to accept the ap-
propriate undersize bearing inserts if:
²Journal diameters 1 through 6 are less than
63.4517 mm (2.4981 inches)
²Journal 7 diameter is less than 63.4365 mm
(2.4975 inches).
Once the proper clearances have been obtained,
proceed to Crankshaft Main BearingÐInstallation.
MAIN BEARING JOURNAL DIAMETER (CRANKSHAFT
REMOVED)
Remove the crankshaft from the cylinder block (re-
fer to Cylinder Block - Disassemble).
Clean the oil off the main bearing journal.
Determine the maximum diameter of the journal
with a micrometer. Measure at two locations 90É
apart at each end of the journal.
The maximum allowable taper and out of round is
0.013 mm (0.0005 inch). Compare the measured di-
ameter with the journal diameter specification (Main
Bearing Fitting Chart). Select inserts required to ob-
tain the specified bearing-to-journal clearance.
Install the crankshaft into the cylinder block (refer
to Cylinder Block - Assemble and Crankshaft Main
Bearings - Installation).
INSTALLATION
(1) Lubricate the bearing surface of each insert
with engine oil.
(2) Loosen all the main bearing caps. Install the
main bearing upper inserts.
(3) Install the lower bearing inserts into the main
bearing caps.
(4) Install the main bearing cap(s) and lower in-
sert(s).
(5) Tighten the bolts of caps 1, 2, 4, 5, 6, and 7 to
54 Nzm (40 ft. lbs.) torque. Now tighten these bolts to
95 Nzm (70 ft. lbs.) torque. Finally, tighten these
bolts to 108 Nzm (80 ft. lbs.) torque.
(6) Push the crankshaft forward and backward.
Load the crankshaft front or rear and tighten cap
bolt No.3 to 54 Nzm (40 ft. lbs.) torque. Then tighten
to 95 Nzm (70 ft. lbs.) torque and finally tighten to
108 Nzm (80 ft. lbs.) torque.
(7) Rotate the crankshaft after tightening each
main bearing cap to ensure the crankshaft rotates
freely.
(8) Check crankshaft end play. Crankshaft end
play is controlled by the thrust bearing which is
flange and installed at the No.2 main bearing posi-
tion.(a) Attach a magnetic base dial indicator to the
cylinder block at either the front or rear of the en-
gine.
(b) Position the dial indicator rod so that it is
parallel to the center line of the crankshaft.
(c) Pry the crankshaft forward, position the dial
indicator to zero.
(d) Pry the crankshaft forward and backward.
Note the dial indicator readings. End play is the
difference between the high and low measurements
(Fig. 6). Correct end play is 0.038-0.165 mm
(0.0015-0.0065 inch). The desired specifications are
0.051-0.064 mm (0.002-0.0025 inch).
(e) If end play is not within specification, inspect
crankshaft thrust faces for wear. If no wear is ap-
parent, replace the thrust bearing and measure
end play. If end play is still not within specifica-
tion, replace the crankshaft.
If the crankshaft was removed, install the crank-
shaft into the cylinder block (refer to Cylinder Block -
Assemble).
(9) Install the oil pan.
(10) Install the drain plug. Tighten the plug to 34
Nzm (25 ft. lbs.) torque.
(11) Lower the vehicle.
(12) Install the spark plugs. Tighten the plugs to
37 Nzm (27 ft. lbs.) torque.
(13) Fill the oil pan with engine oil to the full
mark on the dipstick level.
(14) Connect negative cable to battery.
REAR MAIN OIL SEALS
The crankshaft rear main bearing oil seal consists
of two half pieces of viton with a single lip that ef-
fectively seals the rear of the crankshaft. Replace the
upper and lower seal halves as a unit to ensure leak-
free operation.
Fig. 6 Crankshaft End Play Measurement
J4.0L ENGINE 9 - 89

verter. Such conditions can exist when the engine
misfires or otherwise does not operate at peak effi-
ciency.
DO NOT remove spark plug wires from plugs or by
any other means short out cylinders. Failure of the
catalytic converter can occur due to a temperature
increase caused by unburned fuel passing through
the converter.DO NOT allow the engine to operate at fast idle for
extended periods (over 5 minutes). This condition
may result in excessive temperatures in the exhaust
system and on the floor pan.
EXHAUST SYSTEM DIAGNOSIS
11 - 2 EXHAUST SYSTEM AND INTAKE MANIFOLDJ

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

PANEL (GOP)ÐXJ, GRILLE AND GRILLE
OPENING............................23-3
PANEL ILLUMINATION LAMPS,
INSTRUMENT; INTERIOR LIGHTING
(XJ).............................8W-44-1
PANEL ILLUMINATION LAMPS,
INSTRUMENT; INTERIOR LIGHTING
(XJ-RHD).........................8W-44-1
PANEL, INSTRUMENT.............8E-24,8E-1
PANEL INSULATOR PANELÐXJ, DASH....23-12
PANEL LAMP, ACCESSORY LAMP AND
HEATER CONTROL; INTERIOR
LIGHTING (YJ)....................8W-44-1
PANEL OUTLET VACUUM MOTOR
REPLACEMENT, HEATER/DEFROSTER/
INSTRUMENT.......................24-26
PANEL REMOVE/INSTALL, INSTRUMENT . . 8E-20
PANELÐXJ, DASH PANEL INSULATOR....23-12
PANELÐXJ, DOOR TRIM..............23-31
PANELÐXJ, FRONT INNER SCUFF
PLATE/COWL SIDE TRIM...............23-86
PANELÐXJ, LIFTGATE TRIM............23-59
PANELÐYJ, FULL-METAL DOOR TRIM . . . 23-137
PANELÐYJ, HOOD INSULATOR........23-107
PANELÐYJ, INSTRUMENT............23-151
PANELS AND SCUFF PLATESÐXJ,
INTERIOR TRIM......................23-84
PANELSÐXJ, QUARTER AND
WHEELHOUSE TRIM..................23-87
PARK GEAR OVERHAUL, GOVERNOR....21-127
PARK GEAR SERVICE, GOVERNOR......21-105
PARK INTERLOCK CABLE ADJUSTMENT . 21-195
PARK INTERLOCK CABLE ADJUSTMENT
(XJ)..............................21-101
PARK LOCK COMPONENT OVERHAUL,
ADAPTER/EXTENSION HOUSING
INSPECTION.......................21-127
PARK LOCK COMPONENT
REPLACEMENT.....................21-108
PARK NEUTRAL SWITCH..............14-63
PARK ROD AND PAWL SERVICE........21-190
PARKING BRAKE CABLE TENSIONER
ADJUSTMENT (XJ/YJ)..................5-69
PARKING BRAKE CABLE TENSIONER
REPLACEMENT (XJ)...................5-66
PARKING BRAKE FRONT CABLE
REPLACEMENT (YJ)...................5-67
PARKING BRAKE HANDLE COVERÐXJ....23-94
PARKING BRAKE LEVER INSTALLATION
(XJ WITH FULL CONSOLE)..............5-64
PARKING BRAKE LEVER INSTALLATION
(XJ WITH MINI CONSOLE)..............5-63
PARKING BRAKE LEVER INSTALLATION
(XJ WITHOUT CONSOLE)...............5-65
PARKING BRAKE LEVER REMOVAL (XJ
WITH FULL CONSOLE).................5-63
PARKING BRAKE LEVER REMOVAL (XJ
WITH MINI CONSOLE).................5-62
PARKING BRAKE LEVER REMOVAL (XJ
WITHOUT CONSOLE)...................5-64
PARKING BRAKE MALFUNCTIONS,
DIAGNOSING..........................5-8
PARKING BRAKE OPERATION............5-60
PARKING BRAKE PEDAL INSTALLATION
(YJ)................................5-66
PARKING BRAKE PEDAL REMOVAL (YJ) . . . 5-66
PARKING BRAKE REAR CABLE
REPLACEMENT (XJ)...................5-67
PARKING BRAKE REAR CABLE
REPLACEMENT (YJ)...................5-68
PARKING BRAKE SWITCH...............5-68
PARKING BRAKES.....................5-60
PARKING LAMPS; FRONT LIGHTING
(XJ).............................8W-50-1
PARKING LAMPS; FRONT LIGHTING
(XJ-RHD).........................8W-50-2
PARKING LAMPS; FRONT LIGHTING
(YJ).............................8W-50-1
PARK/NEUTRAL POSITION SWITCH;
FUEL/IGNITION (XJ)
................8W-30-4
PARK/NEUTRAL POSITION SWITCH;
FUEL/IGNITION (YJ)
................8W-30-4
PARK/NEUTRAL POSITION SWITCH;
TRANSMISSION AND TRANSFER CASE
. . 21-183
PARK/NEUTRAL POSITION SWITCH;
FUEL/IGNITION (XJ-RHD)
............8W-30-4
PARK/NEUTRAL POSITION SWITCH
SERVICE
..........................21-109PARK/NEUTRAL SWITCHÐPCM INPUT . . . 14-24
PARK/TURN SIGNAL LAMP BULB
REPLACEMENTÐXJ, FRONT.............8L-9
PARK/TURN SIGNAL LAMP BULB
REPLACEMENTÐYJ, FRONT............8L-25
PARTS INTERCHANGEABILITY,
TRANSMISSION CHANGES.............21-67
PARTS RECOMMENDATION,
LUBRICATION AND REPLACEMENT........0-2
PASSENGER'S POWER LOCK SWITCH.....8P-6
PASSENGER'S POWER WINDOW
SWITCH.............................8S-6
PATTERN ANALYSIS, BACKLASH AND
CONTACT; FRONT SUSPENSION AND
AXLE...............................2-45
PATTERN ANALYSIS, BACKLASH AND
CONTACT; REAR SUSPENSION AND
AXLES..............................3-27
PATTERN, SHIFT......................21-2
PATTERN, TRANSMISSION SHIFT........21-34
PATTERNS, TIRE WEAR................22-4
PAWL SERVICE, PARK ROD...........21-190
PCM SYSTEM SCHEMATICS............14-41
PEDAL, ACCELERATOR................14-17
PEDAL AND THROTTLE CABLE,
ACCELERATOR.................14-17,14-58
PEDAL BUSHINGS, CLUTCH AND BRAKE . . . 0-22
PEDAL INSTALLATION, BRAKE...........5-31
PEDAL INSTALLATION, CLUTCH..........6-15
PEDAL INSTALLATION (YJ), PARKING
BRAKE...............................5-66
PEDAL REMOVAL, BRAKE...............5-31
PEDAL REMOVAL, CLUTCH..............6-15
PEDAL REMOVAL (YJ), PARKING BRAKE . . . 5-66
PEDAL TRAVEL SENSOR, BRAKE;
ANTI-LOCK BRAKES (YJ)............8W-32-1
PEDALÐBRAKELIGHT SWITCH, POWER
BRAKE BOOSTERÐBRAKE..............5-22
PERFORMANCE, ENGINE.................9-2
PERFORMANCE TEMPERATURE AND
PRESSURE CHART, XJ................24-13
PERFORMANCE TEMPERATURE AND
PRESSURE CHART, YJ................24-13
PERFORMANCE TEST, REFRIGERANT
SERVICE...........................24-11
PERFORMANCE TESTS, AIR
CONDITIONING......................24-12
PILLAR TRIM COVERSÐXJ, B/C-PILLAR
AND LIFTGATE.......................23-88
PILOT BEARING REPLACEMENT..........6-12
PIN REPLACEMENT, CAMSHAFT......9-34,9-75
PIN REPLACEMENTÐXJ, DOOR
HINGE/HINGE.......................23-52
PINION GEAR ASSEMBLY/INSTALLATION . . . 2-42
PINION GEAR DEPTH INFORMATION;
FRONT SUSPENSION AND AXLE..........2-39
PINION GEAR DEPTH INFORMATION;
REAR SUSPENSION AND AXLES..........3-21
PINION GEAR DEPTH VARIANCE; FRONT
SUSPENSION AND AXLE................2-40
PINION GEAR DEPTH VARIANCE; REAR
SUSPENSION AND AXLES...........3-22,3-39
PINION MEASUREMENT AND ASSEMBLY . . . 3-22
PINION MEASUREMENT, DIFFERENTIAL....2-40
PINION REMOVAL/DISASSEMBLY; FRONT
SUSPENSION AND AXLE................2-36
PINION REMOVAL/DISASSEMBLY; REAR
SUSPENSION AND AXLES...............3-19
PINION SEAL REPLACEMENT; FRONT
SUSPENSION AND AXLE................2-25
PINION SEAL REPLACEMENT; REAR
SUSPENSION AND AXLES...............3-33
PINION SHAFT SEAL REPLACEMENT......3-15
PIPEÐXJ VEHICLES, EXHAUST..........11-3
PIPEÐYJ VEHICLES, EXHAUST..........11-4
PISTON AND TRANSMISSION CASE
OVERHAUL, FIRST-REVERSE BRAKE....21-247
PISTON AND WORM SHAFT
REPLACEMENT, RACK.................19-32
PISTON CLEARANCE, AW-4 BUSHING . . . 21-339
PISTON SPECIFICATIONS, AW-4
RETAINER.........................21-340
PISTONS AND CONNECTING RODS
. . . 9-39,9-81
PISTONS AND SPRINGS, ACCUMULATOR
. 21-189
PITMAN ARM
..................19-17,19-20
PITMAN SHAFT AND SIDE COVER
REPLACEMENT
......................19-28
PITMAN SHAFT SEAL REPLACEMENT
.....19-37PITMAN SHAFT SEALS AND BEARING
REPLACEMENT......................19-34
PITMAN SHAFT SEALSÐIN CAR
REPLACEMENT......................19-23
PIVOTS REMOVE/INSTALL, WINDSHIELD
WIPER LINKAGE.....................8K-17
PLANETARY GEAR AND CLUTCH
OVERHAUL, OVERDRIVE..............21-218
PLANETARY GEAR OVERHAUL, FRONT . . . 21-237
PLANETARY GEAR TRAIN OVERHAUL . . . 21-141
PLASTIC COMPONENT INSPECTION,
RUBBER............................0-20
PLASTIC HOSES/TUBING, RUBBER........0-26
PLASTIC INSERTÐXJ, REAR QUARTER
WINDOW GLASS/REAR QUARTER.......23-73
PLASTIGAGE, MEASURING WITH..........9-3
PLATE, FRONT SKID...................13-1
PLATE, FUEL TANK SKID...........13-15,13-3
PLATE LAMP HOUSINGÐXJ, LIFTGATE
LICENSE...........................23-65
PLATE LAMPÐXJ, LICENSE............8L-12
PLATE LAMPS, TAIL LAMPS AND
LICENSE.........................8W-51-1
PLATE LAMPS, TAIL LAMPS AND REAR
LICENSE; REAR LIGHTING (XJ).......8W-51-1
PLATE LAMPS, TAIL LAMPS AND REAR
LICENSE; REAR LIGHTING (XJ-RHD) . . . 8W-51-1
PLATE REPLACEMENT, SUPPORT.........5-58
PLATE SCREW ANCHOR AND BUMPERÐ
XJ, LIFTGATE LICENSE................23-65
PLATE SERVICE, CONVERTERÐPUMP
SEALÐDRIVE......................21-116
PLATE SPECIFICATIONS, 30RH/32RH
SNAP RING/THRUST WASHER/THRUST . . 21-335
PLATE THICKNESS, AW-4 CLUTCH DISC . 21-338
PLATE, TRANSFER CASE SKID......13-15,13-3
PLATE, VEHICLE CODE...............Intro.-4
PLATE, VEHICLE IDENTIFICATION
NUMBER (VIN).....................Intro.-4
PLATE/COWL SIDE TRIM PANELÐXJ,
FRONT INNER SCUFF.................23-86
PLATESÐXJ, INTERIOR TRIM PANELS
AND SCUFF.........................23-84
PLATESÐXJ, OUTER SCUFF............23-89
PLATESÐXJ, VEHICLE, LABELS........Intro.-2
PLATESÐYJ, VEHICLE, LABELS........Intro.-3
PLATFORMÐXJ, BUCKET SEAT.........23-82
PLUG ASSEMBLY REPLACEMENT,
ADJUSTER..........................19-29
PLUG CABLE RESISTANCE, SPARK......8D-14
PLUG, HOUSING END.................19-28
PLUG LOCATIONS, TRANSMISSION
SWITCH............................21-34
PLUG SECONDARY CABLES, SPARK.....8D-14,
8D-24
PLUGS, SPARK; IGNITION SYSTEMS....8D-12,
8D-23,8D-32
PLUGS, SPARK; LUBRICATION AND
MAINTENANCE.......................0-20
POLISHING, WET SANDING,BUFFING....23-158
POOR CONNECTIONS, INTERMITTENT;
WIRING DIAGRAMSÐGENERAL
INFORMATION (XJ)
...................8W-4
POSITION SENSOR, CAMSHAFT; FUEL
SYSTEM
............................14-60
POSITION SENSOR, CAMSHAFT;
FUEL/IGNITION (XJ)
................8W-30-3
POSITION SENSOR, CAMSHAFT;
FUEL/IGNITION (YJ)
................8W-30-3
POSITION SENSOR, CAMSHAFT;
IGNITION SYSTEMS
..............8D-17,8D-2
POSITION SENSOR, CAMSHAFT;
FUEL/IGNITION (XJ-RHD)
............8W-30-3
POSITION SENSOR, CRANKSHAFT; FUEL
SYSTEM
............................14-60
POSITION SENSOR, CRANKSHAFT;
FUEL/IGNITION (XJ)
................8W-30-3
POSITION SENSOR, CRANKSHAFT;
FUEL/IGNITION (YJ)
................8W-30-3
POSITION SENSOR, CRANKSHAFT;
IGNITION SYSTEMS
..............8D-17,8D-3
POSITION SENSOR, CRANKSHAFT;
FUEL/IGNITION (XJ-RHD)
............8W-30-3
POSITION SENSOR TEST, CAMSHAFT;
FUEL SYSTEM
.......................14-46
POSITION SENSOR TEST, CAMSHAFT;
IGNITION SYSTEMS
...................8D-6
20 INDEXJ
Description Group-Page Description Group-Page Description Group-Page

SHUTDOWN (ASD) RELAY, AUTOMATIC;
FUEL SYSTEM.......................14-59
SHUTDOWN (ASD) RELAY, AUTOMATIC;
IGNITION SYSTEMS..............8D-17,8D-1
SHUTDOWN (ASD) RELAY TEST,
AUTOMATIC.........................8D-6
SHUTDOWN (ASD) RELAY TESTING,
AUTOMATIC.........................14-46
SHUTDOWN (ASD) RELAYÐPCM
OUTPUT, AUTO......................14-26
SHUTDOWN (ASD) SENSEÐPCM INPUT,
AUTOMATIC.........................14-21
SIDE COVER REPLACEMENT, PITMAN
SHAFT.............................19-28
SIDE MARKER LAMP BULB
REPLACEMENTÐXJ..................8L-10
SIDE MARKER LAMP BULB
REPLACEMENTÐYJ..................8L-25
SIDE MOLDING/CLADDINGÐXJ, BODY . . . 23-20
SIDE MOLDINGÐXJ, WINDSHIELD......23-86
SIDE STEP MOLDINGÐYJ, BODY.......23-115
SIDE TRIM PANELÐXJ, FRONT INNER
SCUFF PLATE/COWL..................23-86
SIGNAL INDICATOR LAMPS, TURN;
INSTRUMENT CLUSTER (XJ).........8W-40-2
SIGNAL INDICATOR LAMPS, TURN;
INSTRUMENT CLUSTER (XJ-RHD).....8W-40-2
SIGNAL LAMP BULB REPLACEMENTÐ
XJ, FRONT PARK/TURN.................8L-9
SIGNAL LAMP BULB REPLACEMENTÐ
YJ, FRONT PARK/TURN................8L-25
SIGNAL RELAY, TURN; TURN SIGNALS
(XJ-RHD)..........................8W-52-1
SIGNAL SYSTEM - YJ, TURN............8J-3
SIGNAL SYSTEM, TURN................8J-1
SIGNAL, TACHOMETER; FUEL/IGNITION
(XJ).............................8W-30-5
SIGNAL, TACHOMETER; FUEL/IGNITION
(YJ).............................8W-30-5
SIGNAL, TACHOMETER; FUEL/IGNITION
(XJ-RHD).........................8W-30-4
SIGNAL/HAZARD WARNING SWITCH
REMOVE/INSTALL - YJ, TURN............8J-5
SIGNAL/HAZARD WARNING SYSTEM -
XJ, TURN............................8J-3
SIGNALS, TURN; TURN SIGNALS (YJ) . . 8W-52-1
SIGNALS, WHEEL/TIRE SIZE AND INPUT....5-3
SIGNAL/TAIL LAMP BULB
REPLACEMENTÐXJ, BACK-UP/REAR
TURN..............................8L-12
SIGNAL/TAIL LAMP BULB
REPLACEMENTÐYJ, BACK-UP/REAR
TURN..............................8L-28
SINGLE CARDAN.....................16-10
SIZE AND INPUT SIGNALS, WHEEL/TIRE....5-3
SKID PLATE, FRONT...................13-1
SKID PLATE, FUEL TANK...........13-15,13-3
SKID PLATE, TRANSFER CASE......13-15,13-3
SLIP DIFFERENTIAL, LIMITED............3-10
SNAP, DRIVELINE; FRONT SUSPENSION
AND AXLE...........................2-19
SNAP, DRIVELINE; REAR SUSPENSION
AND AXLES..........................3-10
SNAP RING CHARTÐAX 15 MANUAL
TRANSMISSION, SELECTIVE...........21-334
SNAP RING/THRUST WASHER/THRUST
PLATE SPECIFICATIONS, 30RH/32RH....21-335
SOFT TOP DOORÐYJ, HALF-METAL.....23-134
SOFT TOP SERVICE INFORMATIONÐYJ . . 23-127
SOFT TOP SERVICEÐYJ..............23-129
SOLENOID AND RELAY, TORQUE
CONVERTER CLUTCH (TCC);
FUEL/IGNITION (XJ)................8W-30-4
SOLENOID AND RELAY, TORQUE
CONVERTER CLUTCH (TCC);
TRANSMISSION CONTROLS (YJ)......8W-31-1
SOLENOID AND RELAYÐ2.5L ENGINE
ONLY, TORQUE CONVERTER CLUTCH
(TCC); TRANSMISSION CONTROLS
(XJ)
.............................8W-31-1
SOLENOID TESTING SPECIFICATIONS,
2.5L STARTER
.......................8A-23
SOLENOID TESTING SPECIFICATIONS,
4.0L STARTER
.......................8A-23
SOLENOIDS, TRANSMISSION VALVE
BODY
.............................21-184
SOLVENTS, BRAKE FLUID/LUBRICANTS/
CLEANING
............................5-2SOUND BAR REMOVE/INSTALL - XJ.......8F-8
SOUND BAR REMOVE/INSTALL - YJ......8F-10
SOUND BARÐXJ....................23-94
SPACER BLOCKSÐTWO-DOOR
VEHICLES, FRONT DOOR..............23-53
SPARE TIRE/WHEEL HOLDDOWN AND
FLOOR BRACKETSÐXJ................23-98
SPARE/WHEEL TIRE CARRIERÐYJ,
EXTERNAL.........................23-133
SPARK PLUG CABLE RESISTANCE.......8D-14
SPARK PLUG SECONDARY CABLES . 8D-14,8D-24
SPARK PLUGS; IGNITION SYSTEMS.....8D-12,
8D-23,8D-32
SPARK PLUGS; LUBRICATION AND
MAINTENANCE.......................0-20
SPEAKERS; AUDIO SYSTEMS........8F-1,8F-2
SPEAKERS; RADIO (XJ).............8W-47-1
SPEAKERS; RADIO (XJ-RHD).........8W-47-1
SPEAKERS; RADIO (YJ).............8W-47-1
SPEAKERS REMOVE/INSTALL - XJ........8F-6
SPEAKERS REMOVE/INSTALL - YJ........8F-9
SPECIFICATION NOTATIONS..........Intro.-11
SPECIFICATIONS; BATTERY/STARTER/
GENERATOR SERVICE..................8B-8
SPECIFICATIONS; BATTERY/STARTING/
CHARGING SYSTEMS DIAGNOSTICS.....8A-23
SPECIFICATIONS; BRAKES..............5-70
SPECIFICATIONS; COOLING SYSTEM......7-45
SPECIFICATIONS; ENGINES...........9-52,9-93
SPECIFICATIONS; FUEL SYSTEM........14-67
SPECIFICATIONS; HORNS...............8G-5
SPECIFICATIONS; IGNITION SYSTEMS....8D-32
SPECIFICATIONS; INSTRUMENT PANEL
AND GAUGESÐXJ..............8E-23,8E-43
SPECIFICATIONS; WHEELS AND TIRES....22-12
SPECIFICATIONS, 2.5L STARTER AND
SOLENOID TESTING..................8A-23
SPECIFICATIONS, 2.5L STARTING
SYSTEM COLD CRANKING.............8A-23
SPECIFICATIONS, 30RH/32RH GENERAL . 21-335
SPECIFICATIONS, 30RH/32RH PRESSURE
TEST.............................21-336
SPECIFICATIONS, 30RH/32RH TORQUE . . 21-336
SPECIFICATIONS, 4.0L STARTER AND
SOLENOID TESTING..................8A-23
SPECIFICATIONS, 4.0L STARTING
SYSTEM COLD CRANKING.............8A-23
SPECIFICATIONS, AW-4 GENERAL......21-337
SPECIFICATIONS, AW-4 TORQUE.......21-344
SPECIFICATIONS, AXLE; FRONT
SUSPENSION AND AXLE................2-49
SPECIFICATIONS, AXLE; REAR
SUSPENSION AND AXLES...............3-51
SPECIFICATIONS, BATTERY; BATTERY/
STARTER/GENERATOR SERVICE..........8B-8
SPECIFICATIONS, BATTERY; BATTERY/
STARTING/CHARGING SYSTEMS
DIAGNOSTICS.......................8A-23
SPECIFICATIONS, BELT TENSION.........7-38
SPECIFICATIONS, BODY LUBRICANT......0-33
SPECIFICATIONS, BRAKE TORQUE........5-70
SPECIFICATIONS, CHARGING SYSTEM....8A-23
SPECIFICATIONS (CONT.), ENGINE....9-53,9-54,
9-94,9-95
SPECIFICATIONS, ENGINE...........9-52,9-93
SPECIFICATIONS, GENERATOR...........8B-8
SPECIFICATIONS, LUBRICANT; FRONT
SUSPENSION AND AXLE................2-22
SPECIFICATIONS, LUBRICANT; REAR
SUSPENSION AND AXLES...........3-13,3-31
SPECIFICATIONS, MANUAL STEERING
GEAR..............................19-46
SPECIFICATIONS, MEASUREMENT AND
TORQUE.........................Intro.-11
SPECIFICATIONS, NP231/NP242 TORQUE . 21-344
SPECIFICATIONS, OUTPUT VOLTAGE.....8A-23
SPECIFICATIONS, POWER STEERING
GEAR..............................19-36
SPECIFICATIONS, PUMP OPERATING......19-3
SPECIFICATIONS, RUNOUT..............16-4
SPECIFICATIONS, STARTER.............8B-8
SPECIFICATIONS, STARTING SYSTEM
....8A-23
SPECIFICATIONS, TORQUE; CLUTCH
......6-17
SPECIFICATIONS, TORQUE; ENGINES
. . 9-54,9-95
SPECIFICATIONS, TORQUE; EXHAUST
SYSTEM AND INTAKE MANIFOLD
........11-10
SPECIFICATIONS, TORQUE; FRONT
SUSPENSION AND AXLE
................2-49SPECIFICATIONS, TORQUE; HEATING
AND AIR CONDITIONING...............24-37
SPECIFICATIONS, TORQUE;
INTRODUCTION............Intro.-11,Intro.-12
SPECIFICATIONS, TORQUE; PROPELLER
SHAFTS............................16-15
SPECIFICATIONS, TORQUE; REAR
SUSPENSION AND AXLES...............3-51
SPECIFICATIONS, TORQUE; STEERING....19-78
SPECIFICATIONS, TRAILER TOWING....Intro.-5,
Intro.-9
SPECIFICATIONS, TRANSMISSION/
TRANSFER CASE....................21-333
SPECIFICATIONSÐACCESSORIES,
TORQUE...........................23-162
SPECIFICATIONSÐMANUAL
TRANSMISSION, TORQUE.............21-333
SPECIFICATIONSÐXJ VEHICLES,
ALIGNMENT..........................2-10
SPECIFICATIONSÐXJ VEHICLES,
TORQUE...........................23-161
SPECIFICATIONSÐYJ VEHICLES,
ALIGNMENT..........................2-10
SPEED CONTROL DIAGNOSTIC TROUBLE
CODE...............................8H-5
SPEED CONTROL SERVO...........8H-1,8H-6
SPEED CONTROL SERVO REMOVE/
INSTALL............................8H-9
SPEED CONTROL SWITCH..........8H-1,8H-6
SPEED CONTROL SWITCH REMOVE/
INSTALL............................8H-9
SPEED CONTROL, VEHICLE; VEHICLE
SPEED CONTROL (XJ)................8W-33-1
SPEED CONTROL, VEHICLE; VEHICLE
SPEED CONTROL (XJ-RHD)..........8W-33-1
SPEED CONTROLÐPCM INPUT.........14-25
SPEED CONTROLÐPCM OUTPUT........14-29
SPEED KNOCK, LOW; FRONT
SUSPENSION AND AXLE................2-19
SPEED KNOCK, LOW; REAR
SUSPENSION AND AXLES...............3-10
SPEED SENSOR.....................21-192
SPEED SENSOR AIR GAP...............5-37
SPEED SENSOR OPERATION, WHEEL......5-37
SPEED SENSOR, PUMP MOTOR;
ANTI-LOCK BRAKES (XJ)............8W-32-2
SPEED SENSOR, PUMP MOTOR;
ANTI-LOCK BRAKES (XJ-RHD)........8W-32-2
SPEED SENSOR, PUMP MOTOR;
ANTI-LOCK BRAKES (YJ)............8W-32-1
SPEED SENSOR ROTORÐ
SPEEDOMETER DRIVE GEAR..........21-193
SPEED SENSOR TEST, VEHICLE.........14-48
SPEED SENSOR, VEHICLE; FUEL
SYSTEM............................14-66
SPEED SENSOR, VEHICLE; FUEL/
IGNITION (XJ).....................8W-30-2
SPEED SENSOR, VEHICLE; FUEL/
IGNITION (YJ).....................8W-30-3
SPEED SENSOR, VEHICLE; VEHICLE
SPEED CONTROL SYSTEM..........8H-1,8H-5
SPEED SENSOR, VEHICLE; FUEL/
IGNITION (XJ-RHD)................8W-30-2
SPEED SENSORÐPCM INPUT, VEHICLE . . 14-25
SPEED SENSORS, WHEEL; ANTI-LOCK
BRAKES (XJ)......................8W-32-1
SPEED SENSORS, WHEEL; ANTI-LOCK
BRAKES (XJ-RHD).................8W-32-1
SPEED SENSORS, WHEEL; ANTI-LOCK
BRAKES (YJ)
......................8W-32-1
SPEED SENSORS, WHEEL; BRAKES
.......5-34
SPEEDOMETER; INSTRUMENT CLUSTER
(XJ)
.............................8W-40-2
SPEEDOMETER; INSTRUMENT CLUSTER
(XJ-RHD)
.........................8W-40-1
SPEEDOMETER CABLE
.................0-33
SPEEDOMETER SERVICE
. . 21-109,21-287,21-309
SPLASH APRONSÐYJ, FENDER
........23-115
SPLASH LINERSÐYJ, WHEELHOUSE
....23-115
SPLASH SHIELD, GENERATOR
..........13-13
SPLASH SHIELDÐXJ VEHICLES, FUEL
FILLER HOSE
.........................13-4
SPLASH SHIELDSÐYJ, FENDER INNER
. . 23-116
SPLICE INDEX; SPLICE INFORMATION
(XJ)
.............................8W-70-1
SPLICE INDEX; SPLICE INFORMATION
(XJ-RHD)
.........................8W-70-1
26 INDEXJ
Description Group-Page Description Group-Page Description Group-Page