2002 JEEP LIBERTY check engine light

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Page 1657 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual Pressure Diagnosis
Condition Possible Causes Correction
4. Faulty compressor. 4. See A/C Compressor in this group. Replace
the compressor, if required.
The low side pressure is
normal or slightly high

Page 1658 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual DIAGNOSIS AND TESTING - HEATER
PERFORMANCE
Before performing the following tests, refer to Cool-
ing for the procedures to check the radiator coolant
level, serpentine drive belt tension, radiator air

Page 1734 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual The pump contains a 3 port solenoid, a pump that
contains a switch, a spring loaded canister vent valve
seal, 2 check valves and a spring/diaphragm.
OPERATION
Immediately after a cold start, engine te

Page 1737 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual OPERATION
The PCV system operates by engine intake mani-
fold vacuum. Filtered air is routed into the crankcase
through the air cleaner hose and crankcase breath-
er(s) (if used). The metered air, alo

Page 1748 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual ENGINE - DESCRIPTION, COOLING
SYSTEM 3.7L.........................7-1
ENGINE - DESCRIPTION, COOLING
SYSTEM ROUTING 3.7L.................7-2
ENGINE - INSTALLATION, 3.7L . . . 7-17,7-18,7-22
ENGINE - RE

Page 1754 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual LATCH - ACCESS PANEL - REMOVAL....23-139
LATCH - INSTALLATION . . 23-120,23-124,23-131,
23-137
LATCH - INSTALLATION, FLIP-UP GLASS . 23-136
LATCH - INSTALLATION, FLOOR
CONSOLE LID.....................

Page 1757 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual OPERATION - DESCRIPTION, MODES OF . . 8E-11
OPERATION - DIAGNOSIS AND TESTING,
AIR CHECKING TRANSMISSION
CLUTCH............................21-80
ORDER, 2.4L 4-CYLINDER - ENGINE
FIRING.................

Page 1764 of 1803

JEEP LIBERTY 2002 KJ / 1.G Workshop Manual SPARK PLUG - OPERATION.............8I-12
SPARK PLUG - REMOVAL..............8I-15
SPARK PLUG CABLE RESISTANCE, 2.4L....8I-3
SPARK PLUG CONDITIONS - DIAGNOSIS
AND TESTING........................8I-13
SP