Jeep Liberty KJ 2003 WSM Service Manual Repair

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🏷️ Basic Information Identification Make: Jeep Model: Liberty Year: 2003 Codes Chassis Code: KJ 👋 Introduction Market Position Vehicle Segment: Compact SUV / Off-road oriented Competitive Analysis Key Competitors: Ford...

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标签: 2003 Car Cars Jeep Liberty KJ Misc

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Description

🏷️ Basic Information

Identification

Make:

Model:

Liberty

Year:

Codes

Chassis Code:

👋 Introduction

Market Position

Vehicle Segment:

Compact SUV / Off-road oriented

Competitive Analysis

Key Competitors:

Ford Escape, Toyota RAV4, Honda CR-V, Nissan Xterra

Key Features

Unique Selling Points:

Rugged styling, available 4x4 system (Command-Trac, Selec-Trac), strong off-road capability for its class

Target Audience:

Enthusiasts seeking an affordable, capable compact SUV with off-road prowess and utility

📋 Manual Details

Coverage Areas

Primary Coverage:

Service and Repair

Page Count

Estimated Pages:

1500-2000

Manual Type

Type:

Factory Service Manual (WSM)

Language

Language:

English

Format

Format:

Digital Download (likely PDF)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine disassembly, assembly, diagnosis, troubleshooting, performance tuning, cooling system, lubrication system

Engine Electrical:

Ignition system, fuel injection system, starting and charging system, sensors, actuators, ECM/PCM diagnosis

Transmission Manual:

Service, repair, and diagnosis of manual transmissions

Transmission Automatic:

Service, repair, and diagnosis of automatic transmissions (if applicable)

Drivetrain:

Front axle, rear axle, transfer case, driveshafts, U-joints, CV joints, wheel bearings

Suspension:

Front and rear suspension components, diagnosis, alignment, shock absorbers, springs, control arms

Steering:

Power steering system, steering column, steering gear/rack and pinion, diagnosis

Brakes:

Hydraulic system, ABS, disc brakes (front/rear), parking brake, diagnosis, component replacement

Exhaust:

Exhaust system components, catalytic converter, mufflers, diagnosis

Fuel:

Fuel tank, fuel pump, fuel lines, fuel injectors, evaporative emission control (EVAP)

HVAC:

Heating, ventilation, and air conditioning system diagnosis, component replacement, refrigerant handling

Electrical System:

Body electrical systems, lighting, interior/exterior lamps, switches, relays, fuses, battery, wiring diagrams

Body And Chassis:

Body panels, doors, hinges, locks, glass, interior trim, structural components, corrosion protection

Diagnostics:

OBD-II diagnostic trouble codes (DTCs), diagnostic procedures, scan tool usage

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, fluid checks, tire rotations, spark plug replacement

Troubleshooting:

Systematic fault finding for various vehicle issues

Repair Procedures:

Detailed step-by-step instructions for component removal, installation, and repair

Component Replacement:

Replacement of wear items, engine parts, transmission components, body parts, etc.

Wiring Diagrams:

Comprehensive electrical schematics for all vehicle systems

Diagnostic Flowcharts:

Visual guides for diagnosing specific problems

Technical Depth

Depth:

In-depth, professional-level repair and diagnostic information

Coverage Scope:

Covers all major mechanical, electrical, and body systems for comprehensive repairs

📊 Manual Specifications

File Format

File Type:

Print Quality

Printability:

Printable pages for physical use in a workshop environment

Binding Type

Binding:

N/A (Digital)

Paper Type

Paper:

N/A (Digital)

⚙️ Engine Specifications

Primary Engine

Engine Code And Description:

3.7L (3701cc) V6 SOHC (PowerTech) - EKG

Engine Block Material:

Cast Iron

Cylinder Head Material:

Aluminum

Performance

Horsepower:

210 hp @ 5200 rpm

Torque:

235 lb-ft @ 4000 rpm

Fuel System

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

Engine Mechanical

Bore X Stroke:

3.70 x 3.37 in (94.0 x 85.5 mm)

Compression Ratio:

9.6:1

Maintenance

Spark Plug Type:

Champion RE10MCC4 or equivalent

Oil Capacity With Filter:

5.0 quarts (4.7 liters)

Recommended Oil Viscosity:

SAE 5W-30

🔧 Transmission

Standard

Transmission Type:

4-speed Automatic (42RLE)

Optional

Transmission Type Manual:

5-speed Manual (NV150)

Features

Automatic Transmission Fluid:

Mopar ATF+4 (or equivalent)

Manual Transmission Fluid:

Mopar Manual Transmission Lubricant (or equivalent SAE 75W-90 GL-5)

Drivetrain

Transfer Case Options:

Command-Trac NV131 (Part-time 2-speed), Selec-Trac NV242 (Full-time 2-speed)

📐 Dimensions

Exterior

Wheelbase:

104.4 inches (2652 mm)

Length:

173.5 inches (4407 mm)

Width:

72.6 inches (1844 mm)

Height:

72.4 inches (1839 mm)

Ground Clearance:

8.7 inches (221 mm)

Weights

Curb Weight Approx:

3,800 - 4,200 lbs (1724 - 1905 kg)

Towing Capacity Max:

3500 lbs (1588 kg)

Payload Capacity Max:

850 lbs (386 kg)

🛡️ Safety Features

Ratings

NHTSA Front Driver Side Impact:

★★★★★ (5-star)

NHTSA Front Passenger Side Impact:

★★★★★ (5-star)

IIHS Moderate Overlap Frontal Offset:

IIHS Side Impact:

Active Features

Standard (4-wheel disc with ABS)

Traction Control:

Optional (Traction Control System - TCS)

Electronic Stability:

Optional (Electronic Stability Program - ESP)

Passive Features

Airbags:

Standard driver and front passenger airbags

Seatbelts:

3-point seat belts with pretensioners

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM/CD player with optional Infinity speaker system. Auxiliary inputs may vary by trim.

Navigation:

Rarely equipped; aftermarket units were more common.

Driver Assistance

Cruise Control:

Standard on most trims.

Connectivity

Onboard Diagnostics:

OBD-II compliant system for emissions and vehicle diagnostics.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 3,000-7,500 miles (5,000-12,000 km) or 6 months, depending on driving conditions and oil type used (refer to manual for specifics).

Air Filter Replacement:

Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection.

Cabin Air Filter:

Every 15,000-20,000 miles (24,000-32,000 km).

Coolant Flush Interval:

Every 30,000-60,000 miles (48,000-96,000 km) or 2-5 years.

Fluid Specifications

Engine Coolant:

Mopar Antifreeze/Coolant (HOAT) 5-Year/100,000 Mile Formula or equivalent.

Power Steering Fluid:

Mopar Power Steering Fluid or equivalent (refer to manual for specific type if different from ATF+4).

Brake Fluid:

DOT 3 (or DOT 4 if specified for ABS).

Known Issues

Common Problems V6:

Intake manifold gaskets can leak, camshaft position sensors may fail, occasional PCV valve issues.

Common Problems Transmission:

42RLE automatic transmission can exhibit harsh shifting or solenoid issues; 4WD system engagement can be a concern.

Common Problems Suspension:

Ball joint wear, sway bar link noise, control arm bushings.

Common Problems Electrical:

Window regulator failures, power lock actuator issues, HVAC blower motor resistor problems.

📚 Vehicle History

Brand Heritage

Jeep Legacy:

Jeep has a long-standing reputation for ruggedness, off-road capability, and utility dating back to WWII.

Model Evolution

Kj Generation:

First Generation Liberty (KJ), produced from 2002 to 2007. This model replaced the Cherokee (XJ) in Jeep's lineup in North America.

Design Language:

Emphasized a more rounded, modern styling compared to its boxy predecessor, while retaining Jeep's signature seven-slot grille and round headlights.

Production

Manufacturing Plant:

Toledo North Complex, Toledo, Ohio, USA

🏆 Awards & Recognition

Recognitions

Segment Awards:

While not a frequent recipient of major mainstream awards, it was often praised for its off-road capability relative to its price point and class.

Ratings

Consumer Reports Reliability:

Reliability ratings historically varied, with some model years and components showing better performance than others. The manual would detail common failure points and fixes.