2002 JEEP GRAND CHEROKEE powertrain

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Page 349 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual The battery cables (Fig. 17) or (Fig. 18) are large
gauge, stranded copper wires sheathed within a
heavy plastic or synthetic rubber insulating jacket.
The wire used in the battery cables combines exc

Page 355 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual CHARGING
TABLE OF CONTENTS
page page
CHARGING
DESCRIPTION.........................24
OPERATION...........................24
DIAGNOSIS AND TESTING - CHARGING
SYSTEM............................24
SPECIF

Page 356 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual ²a faulty or improperly adjusted switch that
allows a lamp to stay on. Refer to Ignition-Off Draw
Test in 8, Battery for more information.
INSPECTION
The Powertrain Control Module (PCM) monitors
crit

Page 359 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual INSTALLATION
(1) Position generator to engine and install mount-
ing bolts.
(2) Tighten generator mounting bolts as follows:
²Vertical mounting bolt 4.7L engineÐ40 N´m (29
ft. lbs.)
²Long horizont

Page 360 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual STARTING
TABLE OF CONTENTS
page page
STARTING
DESCRIPTION.........................29
OPERATION...........................30
DIAGNOSIS AND TESTING - STARTING
SYSTEM............................30
SPECIF

Page 361 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual OPERATION
The starting system components form two separate
circuits. A high-amperage feed circuit that feeds the
starter motor between 150 and 350 amperes, and a
low-amperage control circuit that oper

Page 399 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual The ignition system is controlled by the powertrain
control module (PCM) on all engines.
The ignition system consists of:
²Spark Plugs
²Ignition Coil(s)
²Powertrain Control Module (PCM)
²Crankshaf

Page 400 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual SPARK PLUGS
ENGINE PLUG TYPE ELECTRODE GAP
4.0L 6-CYL. RC12ECC 0.89 mm (.035 in.)
4.7L V-8 (Exc. HO) RC12MCC4 1.01 mm (.040 in.)
4.7L V-8 High
Output (HO)RC7PYCB4 1.01 mm (.040 in.)
TORQUE - IGNITION
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