2002 JEEP GRAND CHEROKEE vaCUUM

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Page 1421 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual FUEL DELIVERY
DESCRIPTION
The fuel delivery system consists of:
²the fuel pump module containing the electric
fuel pump, fuel gauge sending unit (fuel level sensor)
and a separate fuel filter located

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 1430 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (19) Disconnect test leads from relay cavities
immediately after testing.
FUEL PUMP PRESSURE TEST
Use this test in conjunction with other fuel system
tests. Refer to the Fuel Pump Capacity Test, Fuel

Page 1435 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual CAUTION: The left and right fuel rails are replaced
as an assembly. Do not attempt to separate rail
halves at connector tube (Fig. 22). Due to design of
tube, it does not use any clamps. Never attempt

Page 1437 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (9) Disconnect speed control cable at throttle body
(if equipped). Refer to Speed Control Cable.
(10) Disconnect automatic transmission cable at
throttle body (if equipped).
(11) Remove cable routing

Page 1438 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (14) Install air tube (or duct) at top of throttle
body.
(15) Install fuel tank cap.
(16) Connect negative battery cable to battery.
(17) Start engine and check for fuel leaks.
FUEL TANK
DESCRIPTION
T

Page 1439 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (19) Disconnect fuel return line at fuel filter/fuel
pressure regulator (Fig. 36). Refer to Quick-Connect
Fittings for procedures.
(20) Disconnect fuel pressure line at fuel filter/fuel
pressure regul

Page 1442 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual Fig. 31 LDP REMOVAL / INSTALLATION
1 - LDP
2 - ELEC. CONNECT.
3 - VAPOR / VACUUM LINES
4 - WIRING CLIP
Fig. 32 FUEL FILL TUBE/HOSE/CLAMP
1 - AXLE VENT HOSE
2 - FUEL VENT TUBE
3 - FUEL FILL TUBE
4 - PL