2002 JEEP LIBERTY check engine

STOP LAMP BULB - INSTALLATION,
CENTER HIGH MOUNTED..............8L-19
STOP LAMP BULB - REMOVAL, CENTER
HIGH MOUNTED.....................8L-18
STOP LAMP UNIT - INSTALLATION,
CENTER HIGH MOUNTED..............8L-19
STOP LAMP UNIT - REMOVAL, CENTER
HIGH MOUNTED.....................8L-19
STRUCTURAL COLLAR - INSTALLATION....9-44
STRUCTURAL COLLAR - REMOVAL.......9-44
SURFACE PREPARATION - STANDARD
PROCEDURE, ENGINE GASKET...........9-11
SUSPENSION ARM BUSHING -
INSTALLATION, LOWER.................2-8
SUSPENSION ARM BUSHING -
INSTALLATION, UPPER..................2-8
SUSPENSION ARM BUSHING -
REMOVAL, LOWER.....................2-7
SUSPENSION ARM BUSHING -
REMOVAL, UPPER......................2-7
SUSPENSION, SPECIAL TOOLS - FRONT....2-1
SUSPENSION, SPECIAL TOOLS - REAR.....2-6
SWITCH - DESCRIPTION, BACKUP LAMP . . 8L-15
SWITCH - DESCRIPTION, BRAKE LAMP . . . 8L-16
SWITCH - DESCRIPTION, HAZARD.......8L-28
SWITCH - DESCRIPTION, HEADLAMP
LEVELING..........................8L-37
SWITCH - DESCRIPTION, LAMP BAR.....8L-67
SWITCH - DESCRIPTION, MULTI-
FUNCTION..........................8L-46
SWITCH - DIAGNOSIS AND TESTING,
BACKUP LAMP......................8L-15
SWITCH - DIAGNOSIS AND TESTING,
BRAKE LAMP.......................8L-17
SWITCH - DIAGNOSIS AND TESTING,
HEADLAMP LEVELING.................8L-37
SWITCH - DIAGNOSIS AND TESTING,
MULTI-FUNCTION....................8L-50
SWITCH - INSTALLATION, BRAKE LAMP . . 8L-18
SWITCH - INSTALLATION, HAZARD......8L-30
SWITCH - INSTALLATION, HEADLAMP
LEVELING..........................8L-38
SWITCH - INSTALLATION, LAMP BAR....8L-67
SWITCH - INSTALLATION, MULTI-
FUNCTION..........................8L-53
SWITCH - OPERATION, BACKUP LAMP . . . 8L-15
SWITCH - OPERATION, BRAKE LAMP.....8L-16
SWITCH - OPERATION, HAZARD.........8L-29
SWITCH - OPERATION, HEADLAMP
LEVELING..........................8L-37
SWITCH - OPERATION, MULTI-FUNCTION . 8L-48
SWITCH - REMOVAL, BRAKE LAMP......8L-17
SWITCH - REMOVAL, HAZARD..........8L-29
SWITCH - REMOVAL, HEADLAMP
LEVELING..........................8L-38
SWITCH - REMOVAL, LAMP BAR........8L-67
SWITCH - REMOVAL, MULTI-FUNCTION . . . 8L-53
SYSTEM - DESCRIPTION, EXHAUST.......11-1
SYSTEM - DIAGNOSIS AND TESTING,
EXHAUST............................11-2
SYSTEM - OPERATION, COOLING..........7-2
SYSTEM - REVERSE FLUSHING -
STANDARD PROCEDURE, COOLING.......7-12
SYSTEM - STANDARD PROCEDURE,
DRAINING COOLING...................7-11
SYSTEM - STANDARD PROCEDURE,
REFILLING COOLING...................7-11
SYSTEM 2.4L ENGINE - DESCRIPTION,
COOLING.............................7-1
SYSTEM DIAGNOSIS CHART -
DIAGNOSIS AND TESTING, COOLING.......7-5
SYSTEM LEAKS - DIAGNOSIS AND
TESTING, COOLING.....................7-2
TEMPERATURE SENSOR - DESCRIPTION,
ENGINE COOLANT.....................7-21
TEMPERATURE SENSOR -
INSTALLATION, ENGINE COOLANT........7-22
TEMPERATURE SENSOR - OPERATION,
ENGINE COOLANT.....................7-21
TEMPERATURE SENSOR - REMOVAL,
ENGINE COOLANT.....................7-21TENSIONER & PULLEY - INSTALLATION,
TIMING BELT.........................9-59
TENSIONER & PULLEY - REMOVAL,
TIMING BELT.........................9-59
TEST - DIAGNOSIS AND TESTING,
CYLINDER COMBUSTION PRESSURE
LEAKAGE.............................9-3
TEST - DIAGNOSIS AND TESTING,
CYLINDER COMPRESSION PRESSURE......9-3
TESTING, BACKUP LAMP SWITCH -
DIAGNOSIS.........................8L-15
TESTING, BRAKE LAMP SWITCH -
DIAGNOSIS.........................8L-17
TESTING, COOLING SYSTEM DIAGNOSIS
CHART - DIAGNOSIS....................7-5
TESTING, COOLING SYSTEM LEAKS -
DIAGNOSIS...........................7-2
TESTING, CYLINDER COMBUSTION
PRESSURE LEAKAGE TEST -
DIAGNOSIS...........................9-3
TESTING, CYLINDER COMPRESSION
PRESSURE TEST - DIAGNOSIS............9-3
TESTING, CYLINDER HEAD GASKET -
DIAGNOSIS..........................9-19
TESTING, ENGINE - DIAGNOSIS...........9-5
TESTING, ENGINE DIAGNOSIS -
PERFORMANCE - DIAGNOSIS.............9-5
TESTING, ENGINE MECHANICAL -
DIAGNOSIS...........................9-7
TESTING, ENGINE OIL LEAK
INSPECTION - DIAGNOSIS...............9-4
TESTING, ENGINE OIL PRESSURE
CHECKING - DIAGNOSIS................9-46
TESTING, EXHAUST SYSTEM -
DIAGNOSIS..........................11-2
TESTING, FRONT FOG LAMP RELAY -
DIAGNOSIS.........................8L-23
TESTING, HEADLAMP HIGH BEAM
RELAY - DIAGNOSIS
..................8L-34
TESTING, HEADLAMP LEVELING SWITCH
- DIAGNOSIS
........................8L-37
TESTING, HEADLAMP LOW BEAM RELAY
- DIAGNOSIS
........................8L-40
TESTING, INTAKE MANIFOLD LEAKS -
DIAGNOSIS
..........................9-51
TESTING, LAMP BAR - DIAGNOSIS
......8L-65
TESTING, LAMPS/LIGHTING - EXTERIOR
- DIAGNOSIS
.........................8L-7
TESTING, LASH ADJUSTER (TAPPET)
NOISE DIAGNOSIS - DIAGNOSIS
.........9-28
TESTING, MULTI-FUNCTION SWITCH -
DIAGNOSIS
.........................8L-50
TESTING, ON-BOARD DIAGNOSTICS
(OBD) - DIAGNOSIS
....................7-2
TESTING, PARK LAMP RELAY -
DIAGNOSIS
.........................8L-55
TESTING, PRELIMINARY CHECKS -
DIAGNOSIS
...........................7-2
TESTING, RADIATOR PRESSURE CAP -
DIAGNOSIS
..........................7-25
TESTING, REAR FOG LAMP RELAY -
DIAGNOSIS
.........................8L-57
TESTING, SERPENTINE DRIVE BELT
DIAGNOSIS - DIAGNOSIS
...............7-15
TESTING, TRAILER TOW RELAY -
DIAGNOSIS
.........................8L-62
THREADS - STANDARD PROCEDURE,
REPAIR OF DAMAGED OR WORN
..........9-9
TIMING BELT - INSTALLATION
...........9-56
TIMING BELT - REMOVAL
...............9-55
TIMING BELT COVER(S) - INSTALLATION
. . . 9-53
TIMING BELT COVER(S) - REMOVAL
......9-53
TIMING BELT TENSIONER & PULLEY -
INSTALLATION
........................9-59
TIMING BELT TENSIONER & PULLEY -
REMOVAL
...........................9-59
TIMING, INSTALLATION - BALANCE
SHAFT
..............................9-61TO CYLINDER BORE FITTING -
STANDARD PROCEDURE, PISTON........9-30
TOOLS - 2.4L ENGINE, SPECIAL..........9-17
TOOLS - COOLING, SPECIAL.............7-13
TOOLS - FRONT SUSPENSION, SPECIAL....2-1
TOOLS - REAR SUSPENSION, SPECIAL.....2-6
TORQUE - SPECIFICATIONS.............9-16
TORQUE, SPECIFICATIONS..............7-13
TOW CONNECTOR - INSTALLATION,
TRAILER...........................8L-61
TOW CONNECTOR - REMOVAL, TRAILER . . 8L-61
TOW RELAY - DESCRIPTION, TRAILER....8L-62
TOW RELAY - DIAGNOSIS AND TESTING,
TRAILER...........................8L-62
TOW RELAY - INSTALLATION, TRAILER . . . 8L-63
TOW RELAY - OPERATION, TRAILER.....8L-62
TOW RELAY - REMOVAL, TRAILER.......8L-63
TOW WIRING - DESCRIPTION, TRAILER . . 8L-64
TRAILER TOW CONNECTOR -
INSTALLATION.......................8L-61
TRAILER TOW CONNECTOR - REMOVAL . . 8L-61
TRAILER TOW RELAY - DESCRIPTION....8L-62
TRAILER TOW RELAY - DIAGNOSIS AND
TESTING...........................8L-62
TRAILER TOW RELAY - INSTALLATION . . . 8L-63
TRAILER TOW RELAY - OPERATION......8L-62
TRAILER TOW RELAY - REMOVAL.......8L-63
TRAILER TOW WIRING - DESCRIPTION . . . 8L-64
TRANS COOLER - DESCRIPTION.........7-30
TUBES - STANDARD PROCEDURE,
FLUSHING COOLERS...................7-30
UNIT - ADJUSTMENT, FRONT FOG LAMP . . 8L-25
UNIT - ADJUSTMENT, HEADLAMP.......8L-42
UNIT - INSTALLATION, CENTER HIGH
MOUNTED STOP LAMP................8L-19
UNIT - INSTALLATION, FRONT FOG
LAMP..............................8L-25
UNIT - INSTALLATION, FRONT LAMP.....8L-28
UNIT - INSTALLATION, HEADLAMP.......8L-42
UNIT - INSTALLATION, LICENSE PLATE
LAMP..............................8L-46
UNIT - INSTALLATION, REAR LAMP......8L-60
UNIT - INSTALLATION, REPEATER LAMP . . 8L-61
UNIT - REMOVAL, CENTER HIGH
MOUNTED STOP LAMP
................8L-19
UNIT - REMOVAL, FRONT FOG LAMP
.....8L-24
UNIT - REMOVAL, FRONT LAMP
.........8L-27
UNIT - REMOVAL, HEADLAMP
..........8L-41
UNIT - REMOVAL, LICENSE PLATE LAMP
. . 8L-45
UNIT - REMOVAL, REAR LAMP
..........8L-59
UNIT - REMOVAL, REPEATER LAMP
......8L-61
UPPER BALL JOINT - INSTALLATION
.......2-6
UPPER BALL JOINT - REMOVAL
...........2-6
UPPER CONTROL ARM BUSHINGS -
INSTALLATION
.........................2-4
UPPER CONTROL ARM BUSHINGS -
REMOVAL
............................2-3
UPPER SUSPENSION ARM BUSHING -
INSTALLATION
.........................2-8
UPPER SUSPENSION ARM BUSHING -
REMOVAL
............................2-7
USING PLASTIGAGE - STANDARD
PROCEDURE, MEASURING BEARING
CLEARANCE
..........................9-11
VALVES & SEATS - CLEANING,
INTAKE/EXHAUST
.....................9-27
VALVES & SEATS - DESCRIPTION,
INTAKE/EXHAUST
.....................9-27
VIBRATION DAMPER - INSTALLATION
.....9-43
VIBRATION DAMPER - REMOVAL
.........9-43
WATER PUMP - 2.4L - DESCRIPTION
......7-27
WATER PUMP - 2.4L - INSPECTION
.......7-28
WATER PUMP - 2.4L - OPERATION
.......7-27
WIRING - DESCRIPTION, TRAILER TOW
. . 8L-64
WORN THREADS - STANDARD
PROCEDURE, REPAIR OF DAMAGED
OR
..................................9-9
KJINDEX 7
Description Group-Page Description Group-Page Description Group-Page

VEHICLE EMISSION CONTROL
INFORMATION (VECI) LABEL
DESCRIPTION
All models have a Vehicle Emission Control Infor-
mation (VECI) Label. DaimlerChrysler permanently
attaches the label in the engine compartment (Fig.
4). The label cannot be removed without defacing
label information and destroying label.
The label contains the vehicle's emission specifica-
tions and vacuum hose routings. All hoses must be
connected and routed according to the label.
The label also contains an engine vacuum sche-
matic. There are unique labels for vehicles built for
sale in the state of California and the country of
Canada. Canadian labels are written in both the
English and French languages.
The VECI label contains the following:
²Engine family and displacement
²Evaporative family
²Emission control system schematic
²Certification application
²Engine timing specifications (if adjustable)
²Idle speeds (if adjustable)
²Spark plug and gap
VEHICLE IDENTIFICATION
NUMBER
DESCRIPTION
The Vehicle Identification Number (VIN) plate is
located on the lower left A-pillar and is visible
through the windshield (Fig. 5). The VIN contains 17
characters that provide data concerning the vehicle.
Refer to the VIN decoding chart to determine the
identification of a vehicle.
The Vehicle Identification Number is also
imprinted on the:
²Vehicle Safety Certification Label.
²Frame rail.
To protect the consumer from theft and possible
fraud the manufacturer is required to include a
Check Digit at the ninth position of the Vehicle Iden-
tification Number. The check digit is used by the
manufacturer and government agencies to verify the
authenticity of the vehicle and official documenta-
tion. The formula to use the check digit is not
released to the general public.
Fig. 4 VECI LABEL LOCATION
1 - RADIATOR SUPPORT
2 - VECI LABEL
Fig. 5 VIN NUMBER LOCATION
1 - A-PILLAR
2 - VIN CODE PLATE
8 INTRODUCTIONKJ

VEHICLE IDENTIFICATION NUMBER DECODING CHART
POSITION INTERPRETATION CODE = DESCRIPTION
1 Country of Origin 1 = United States
2 Make J = Jeep
3 Vehicle Type 4 = MPV W/O Side Airbags.
8 = MPV With Side Airbags.
4 Gross Vehicle Weight Rating F = 4001 - 5000 lbs.
G = 5001 - 6000 lbs.
5 Vehicle Line K = Liberty 4X2 (LHD)
L = Liberty 4X4 (LHD)
M = Cherokee 4X4 (RHD)
6 Series 3 = Liberty Renegade
4 = Liberty Sport/Cherokee Sport
5 = Liberty Limited/Cherokee Limited
7 Body Style 8 = Sport Utility - 4 Door
8 Engine K = 3.7L 6 cyl MPI Gasoline
1 = 2.4L 4 cyl MPI Gasoline
7 = 2.5L 4 cyl Diesel
9 Check Digit 0 through 9 or X
10 Model Year 2=2002
11 Assembly Plant W = Toledo North Assembly Plant
12 thru 17 Vehicle Build Sequence
VEHICLE SAFETY
CERTIFICATION LABEL
DESCRIPTION
A vehicle safety certification label (Fig. 6) is
attached to every DaimlerChrysler Corporation vehi-
cle. The label certifies that the vehicle conforms to all
applicable Federal Motor Vehicle Safety Standards.
The label also lists:
²Month and year of vehicle manufacture.
²Gross Vehicle Weight Rating (GVWR). The gross
front and rear axle weight ratings (GAWR's) arebased on a minimum rim size and maximum cold tire
inflation pressure.
²Vehicle Identification Number (VIN).
²Type of vehicle.
²Bar code.
²Month, Day and Hour (MDH) of final assembly.
²Paint and Trim codes.
²Country of origin.
The label is located above the door hinge on the
driver-side A-pillar.
Fig. 6 Vehicle Safety Certification LabelÐTypical
KJINTRODUCTION 9
VEHICLE IDENTIFICATION NUMBER (Continued)