🏷️ Basic Information

Make:

Jeep

Model:

Liberty

Year:

2003

Chassis Code:

KJ

👋 Introduction

Vehicle Segment:

Compact/Mid-size SUV

Target Audience:

Enthusiasts, DIY mechanics, owners seeking to maintain and repair their vehicle

Competitors 2003:

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

Off Road Capability:

Known for its capable 4x4 systems and higher ground clearance compared to many car-based SUVs

Powertrain Options:

Robust V6 engine available, providing ample power for its class

Utility:

Practical cargo space and towing capacity for its size

📋 Manual Details

Engine Coverage:

3.7L V6 PowerTech, 2.4L 4-Cylinder (export/specific markets)

Transmission Coverage:

42RLE 4-Speed Automatic, NV150/NV235 Transfer Case

Drivetrain Coverage:

4WD (Command-Trace/Select-Trac), 2WD

Electrical System Coverage:

All circuits, sensors, actuators, modules, lighting, and diagnostics

Body And Chassis Coverage:

Frame, suspension, steering, body panels, interior trim, HVAC, doors, glass

Estimated Page Count:

1500+

Type:

Workshop Service Repair Manual

Language:

English

Format:

Digital PDF

📖 Manual Coverage

Powertrain:

Engine mechanical, fuel injection, ignition, cooling, lubrication, exhaust, emission controls

Drivetrain:

Automatic transmission overhaul, transfer case operation, drive shafts, axles, differentials

Chassis:

Front and rear suspension components, steering gear, power steering system, brake system (front/rear discs, ABS)

Electrical:

Wiring diagrams, diagnostic trouble codes (DTCs), module programming, starter, alternator, battery, lighting systems, comfort features (power windows, locks)

Body:

Body panel removal/installation, interior trim, climate control (HVAC), door mechanisms, glass replacement, bumper systems

Maintenance:

Routine checks, fluid changes, filter replacements, lubrication, spark plug replacement, belt inspection/replacement

Troubleshooting:

Diagnostic flowcharts for common and uncommon issues, fault code interpretation, electrical system diagnosis

Repair:

Engine component removal and installation (head gaskets, timing chains), transmission rebuild procedures, suspension component replacement, brake caliper/rotor service, starter/alternator replacement

Diagnostics:

On-board diagnostics (OBD-II), sensor testing and replacement, module troubleshooting, electrical connector pinouts

Depth:

Comprehensive, covering everything from basic maintenance to complete engine and transmission overhauls, including electrical system schematics and diagnostic procedures.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content

Print Capability:

Printable pages

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

SOHC V6

Displacement:

207 cubic inches / 3.7 liters

Bore X Stroke:

3.70 x 3.08 inches

Compression Ratio:

9.7:1

Fuel Delivery:

Sequential Electronic Fuel Injection (SEFI)

Horsepower Net Std SAE:

210 hp @ 5500 rpm

Torque Net Std SAE:

235 lb-ft @ 3800 rpm

Fuel Type:

Unleaded gasoline

Recommended Octane:

87

🔧 Transmission

Type:

42RLE 4-Speed Automatic Transmission

Type:

Manual Transmission (5-speed, typically for 2.4L models in specific markets)

Transfer Case 4Wd:

NV150 (Command-Trac - part-time 2WD/4WD HI/4WD LO), NV235 (Select-Trac - full-time 4WD with 2WD/4WD HI/4WD LO)

Automatic Transmission Fluid Type:

Mopar ATF+4 (MS-9602) or equivalent Dexron III/Mercon

Manual Transmission Fluid Type:

API GL-3 or GL-4, SAE 75W-90

📐 Dimensions

Length:

173.5 inches

Width:

71.3 inches

Height:

68.0 inches

Wheelbase:

104.2 inches

Ground Clearance:

8.1 inches

Curb Weight:

3,845 - 4,058 lbs (depending on configuration)

Max Towing Capacity:

3,500 lbs

🛡️ Safety Features

NHTSA Rollover Resistance Rating:

Four-star rating

ABS:

Standard Anti-lock Braking System (ABS)

Traction Control:

Optional Traction Control System (TCS)

Airbags:

Standard front airbags, optional side curtain airbags

Seat Belts:

3-point front and rear seat belts, pretensioners

💡 Technology Features

Audio System:

Optional Infinity speaker system, AM/FM radio with CD player, MP3 capability on some models.

Navigation:

Rarely equipped, typically not a factory option for this model year.

Cruise Control:

Standard

Power Outlets:

12V auxiliary power outlets

🔧 Maintenance

Oil Change Interval:

Every 3,000-6,000 miles or 6 months, depending on driving conditions (refer to manual for exact recommendations)

Engine Air Filter Replacement:

Every 15,000-30,000 miles

Cabin Air Filter Replacement:

Every 15,000-30,000 miles

Spark Plug Replacement:

Every 30,000-60,000 miles (depending on spark plug type)

Transmission Fluid Change:

Every 30,000-50,000 miles

Coolant Flush Interval:

Every 30,000-50,000 miles or 2-3 years

Engine Oil Type:

SAE 5W-30 (preferred), SAE 10W-30 also acceptable (refer to owner's manual for detailed specification and temperature ranges)

Engine Oil Capacity:

5.0 Quarts (4.7 Liters) with filter

Coolant Type:

Chrysler/Mopar HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant, typically a 50/50 mix with distilled water

Brake Fluid Type:

DOT 3

Common Complaints:

Front suspension wear (ball joints, control arm bushings), differential pinion seal leaks, minor oil leaks (valve cover, oil pan), HVAC blower motor resistor failure, catalytic converter issues, radiator leaks.

📚 Vehicle History

Jeep Legacy:

Built upon Jeep's long-standing reputation for off-road capability and ruggedness.

Kj Generation:

First generation Liberty (KJ), introduced for the 2002 model year, replacing the Cherokee (XJ).

Design Philosophy:

A more modern interpretation of the Jeep SUV, featuring unibody construction for improved on-road manners while retaining off-road prowess.

Manufacturing Location:

Toledo, Ohio, USA

Model Year Range:

2002-2007

🏆 Awards & Recognition

Off Road Awards:

Often recognized for its off-road capabilities within its class, though specific awards may vary by publication and year.

Consumer Reports Reliability:

Mixed to Below Average reliability ratings in some consumer reports for this generation.