23 body JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop 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 Workshop Manual

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual depressed, pull fitting from component.The plas-
tic retainer ring must be pressed squarely
into fitting body. If this retainer is cocked
during removal, it may be difficult to discon-
nect fitting. U

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (a) Type 1: Pry up on latch clip with a screw-
driver (Fig. 50).
(b) Type 2: Separate and unlatch 2 small arms
on end of clip (Fig. 51) and swing away from fuel
line.
(c) Slide latch clip toward fuel

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual FUEL INJECTION
TABLE OF CONTENTS
page page
FUEL INJECTION
DIAGNOSIS AND TESTING
VISUAL INSPECTION..................32
SPECIFICATIONS
TORQUE - FUEL INJECTION.............39
ACCELERATOR PEDAL
REMOVAL...

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (8) Inspect system body grounds for loose or dirty
connections. Refer to Group 8, Wiring for ground
locations.
(9) Verify crankcase ventilation (CCV) operation.
Refer to Emission Control System for ad

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (18) 4.0L Engine: Verify wire harness connector is
firmly connected to Engine Coolant Temperature
(ECT) sensor (Fig. 11).(19) 4.7L Engine: Verify MAP and Engine Coolant
Temperature (ECT) sensor electr

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (23) Inspect for pinched or leaking fuel tubes/lines.
Inspect for pinched, cracked or leaking fuel hoses.
(24) Inspect for exhaust system restrictions such
as pinched exhaust pipes, collapsed muffler

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual SPECIFICATIONS
TORQUE - FUEL INJECTION
DESCRIPTION N-m Ft. Lbs. In. Lbs.
Air Cleaner Housing Mount. Nuts 10 93
Air Cleaner Air Duct Clamps 4 35
Air Cleaner Resonator Bolts 4 35
Engine Coolant Temperat

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual The PCM determines injector on-time (pulse width)
based on various inputs.
DIAGNOSIS AND TESTING - FUEL INJECTOR
To perform a complete test of the fuel injectors and
their circuitry, use the DRB scan

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual The PCM uses the IAC motor to control idle speed
(along with timing) and to reach a desired MAP dur-
ing decel (keep engine from stalling).
The IAC motor has 4 wires with 4 circuits. Two of
the wires

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JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual INSTALLATION
INSTALLATION - 4.0L
The IAC motor is located on the throttle body.
(1) Install IAC motor to throttle body.
(2) Install and tighten two mounting bolts (screws)
to 7 N´m (60 in. lbs.) torq