2002 JEEP GRAND CHEROKEE Power train

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Page 1301 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (3) Install intake manifold on the cylinder head
dowels.
(4) Install washer and fastener Numbers 1, 2, 4, 5,
8, 9, 10 and 11 (Fig. 84).
(5) Install washer and fastener Numbers 6 and 7
(Fig. 84).
(6) T

Page 1308 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop 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 1367 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual STRUCTURAL COVER
DESCRIPTION
The structural dust cover is made of die cast alu-
minum and joins the lower half of the transmission
bell housing to the engine bedplate.
OPERATION
The structural cover p

Page 1376 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual NOTE: When installing oil pan gasket/windage tray,
start four pan bolts at each corner before tightening
oil pickup tube. This will keep pan gasket in align-
ment.
(3) Install oil pump pick-up tube us

Page 1424 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual SPECIAL TOOLS
FUEL SYSTEM
FUEL FILTER/PRESSURE
REGULATOR
DESCRIPTION
The combination fuel filter/pressure regulator is
located in front of the fuel tank and above the rear
axle (Fig. 3). It is transve

Page 1426 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (3) Apply a small amount of clean engine oil to
o-rings.
(4) Position filter/regulator to body and install 2
bolts. Tighten bolts to 3 N´m (30 in. lbs.) torque.
(5) Connect 3 fittings. Refer to Quick

Page 1432 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (e) Use DRB scan tool to power fuel pump. If
pressure is now within specifications, replace fuel
filter/fuel pressure regulator.
(f) If pressure is still low, replace fuel pump
module.
(4) If operatin

Page 1451 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual FUEL INJECTION
DIAGNOSIS AND TESTING
VISUAL INSPECTION
A visual inspection for loose, disconnected or incor-
rectly routed wires, vacuum lines and hoses should
be made. This should be done before atte