Jeep XJ. Manual - part 334

FRAME AND BUMPERS

TABLE OF CONTENTS

page

FRAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

FRAME

TABLE OF CONTENTS

page

DESCRIPTION AND OPERATION

EMERGENCY TOW EYES . . . . . . . . . . . . . . . . . . . 1

DESCRIPTION AND OPERATION

EMERGENCY TOW EYES

DESCRIPTION

Some vehicles are equipped with emergency tow

eyes, one can be found in the front and rear of the
vehicle (Fig. 1). The tow eyes are attached to the
frame rails and intended for short distance emer-
gency towing only.

OPERATION

The front tow eye has two holes, the front hole is

for short towing use only and the rear angled hole is
for shipping use only.

The rear tow eye has one hole and is intended for

short towing use only.

CAUTION: Do not use the angled hole for towing.
You could damage your vehicle.

CAUTION: Tow eyes are for emergency use only, to
rescue a vehicle stranded off road. Do not use tow
eyes for tow truck hookup or highway towing. You
could damage your vehicle.

WARNING: Stand clear of vehicles when pulling
with tow eyes. Tow straps and chains may break,
causing serious injury.

Fig. 1 Front and Rear Emergency Tow Eyes

1 – FRONT TOW EYE
2 – SHIPPING USE ONLY
3 – REAR TOW EYE

FRAME AND BUMPERS

13 - 1

2000 JEEP CHEROKEE

FUEL SYSTEM

TABLE OF CONTENTS

page

FUEL DELIVERY SYSTEM. . . . . . . . . . . . . . . . . . . . 1

FUEL INJECTION SYSTEM . . . . . . . . . . . . . . . . . . 25

FUEL DELIVERY SYSTEM

TABLE OF CONTENTS

page

DESCRIPTION AND OPERATION

ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

FUEL RAIL/FUEL DAMPER—4.0L ENGINE. . . . . . . 5
FUEL TANK FILLER TUBE CAP . . . . . . . . . . . . . . . 6
FUEL TUBES/LINES/HOSES AND CLAMPS . . . . . . 6
QUICK-CONNECT FITTINGS . . . . . . . . . . . . . . . . . 6

DIAGNOSIS AND TESTING

FUEL PUMP PRESSURE TEST . . . . . . . . . . . . . . . 6
FUEL PUMP CAPACITY TEST . . . . . . . . . . . . . . . . 7
FUEL PRESSURE LEAK DOWN TEST . . . . . . . . . . 7
FUEL PUMP AMPERAGE TEST . . . . . . . . . . . . . . . 8
FUEL GAUGE SENDING UNIT . . . . . . . . . . . . . . . 10
FUEL INJECTOR TEST . . . . . . . . . . . . . . . . . . . . 10

SERVICE PROCEDURES

FUEL SYSTEM PRESSURE RELEASE

PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . 10

QUICK-CONNECT FITTINGS . . . . . . . . . . . . . . . . 10

REMOVAL AND INSTALLATION

FUEL FILTER/FUEL PRESSURE REGULATOR . . . 13
FUEL PUMP MODULE . . . . . . . . . . . . . . . . . . . . . 14
FUEL PUMP INLET FILTER . . . . . . . . . . . . . . . . . 15
FUEL GAUGE SENDING UNIT . . . . . . . . . . . . . . . 16
FUEL INJECTOR RAIL/FUEL DAMPER—2.5L

ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

FUEL INJECTOR RAIL/FUEL DAMPER—4.0L

ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

FUEL INJECTORS . . . . . . . . . . . . . . . . . . . . . . . . 19
FUEL TANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
FUEL TANK FILLER TUBE CAP . . . . . . . . . . . . . . 21
ACCELERATOR PEDAL . . . . . . . . . . . . . . . . . . . . 21
THROTTLE CABLE . . . . . . . . . . . . . . . . . . . . . . . 22

SPECIFICATIONS

FUEL TANK CAPACITY . . . . . . . . . . . . . . . . . . . . 23
FUEL SYSTEM PRESSURE . . . . . . . . . . . . . . . . . 23
FUEL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . 23
TORQUE CHART . . . . . . . . . . . . . . . . . . . . . . . . . 24

DESCRIPTION AND OPERATION

PCM VIN REPROGRAMMING

OPERATION

USE THE DRB SCAN TOOL TO REPROGRAM

THE NEW POWERTRAIN CONTROL MODULE
(PCM) WITH THE VEHICLES ORIGINAL IDEN-
TIFICATION NUMBER (VIN) AND THE VEHI-
CLES ORIGINAL MILEAGE. IF THIS STEP IS

NOT DONE, A DIAGNOSTIC TROUBLE CODE
(DTC) MAY BE SET.

FUEL DELIVERY SYSTEM

DESCRIPTION

The fuel delivery system consists of:
• the fuel pump module containing the electric

fuel pump, fuel filter/fuel pressure regulator, fuel
gauge sending unit (fuel level sensor) and a separate
fuel filter located at bottom of pump module

FUEL SYSTEM

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