Spark plugs JEEP GRAND CHEROKEE 2002 WJ / 2.G Owner's Manual

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owner's Manual GRAND CHEROKEE 2002 WJ / 2.G JEEP JEEP https://www.carmanualsonline.info/img/16/7175/w960_7175-0.png JEEP GRAND CHEROKEE 2002 WJ / 2.G Owner's Manual

Page 1284 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual (e) If end play is not within specification, inspect
crankshaft thrust faces for wear. If no wear is
apparent, replace the thrust bearing and measure
end play. If end play is still not within specific

Page 1308 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual DIAGNOSIS AND TESTING - ENGINE DIAGNOSIS - PERFORMANCE
CONDITION POSSIBLE CAUSE CORRECTION
ENGINE WILL NOT START 1. Weak battery 1. Charge or replace as necessary.
2. Corroded or loose battery
connect

Page 1309 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual CONDITION POSSIBLE CAUSE CORRECTION
1. ENGINE MISSES ON
ACCELERATION1. Spark plugs dirty or incorrectly
gapped.1. (Refer to 8 - ELECTRICAL/
IGNITION CONTROL/SPARK PLUG -
CLEANING).
2. Dirt in fuel sys

Page 1311 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual CONDITION POSSIBLE CAUSES CORRECTION
OIL PRESSURE DROP 1. Low oil level. 1. Check and correct oil level.
2. Faulty oil pressure sending unit. 2. Replace sending unit (Refer to 9 -
ENGINE/LUBRICATION/O

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual DIAGNOSIS AND TESTING - CYLINDER
COMBUSTION PRESSURE LEAKAGE
The combustion pressure leakage test provides an
accurate means for determining engine condition.
Combustion pressure leakage testing will

Page 1401 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual CATALYTIC CONVERTER - 4.0L
DESCRIPTION - CATALYTIC CONVERTER 4.0L
ENGINE
WARNING: THE NORMAL OPERATING TEMPERA-
TURE OF THE EXHAUST SYSTEM IS VERY HIGH.
THEREFORE, NEVER WORK AROUND OR ATTEMPT
TO SERV

Page 1403 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual CATALYTIC CONVERTER - 4.7L
DESCRIPTION - CATALYTIC CONVERTER
WARNING: THE NORMAL OPERATING TEMPERA-
TURE OF THE EXHAUST SYSTEM IS VERY HIGH.
THEREFORE, NEVER WORK AROUND OR ATTEMPT
TO SERVICE ANY PART

Page 2175 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Owners Manual an associated limp in will take two trips to illumi-
nate the MIL.
Refer to the Diagnostic Trouble Codes Description
Charts in this section and the appropriate Power-
train Diagnostic Procedure Manual
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