🏷️ Basic Information

Make:

Jeep

Model:

Liberty

Chassis Code:

KJ

Model Years Covered:

2002, 2003, 2004, 2005, 2006, 2007

👋 Introduction

Segment:

Compact SUV, positioned as a capable and versatile off-road oriented vehicle within the Jeep lineup.

Key Competitors:

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

Jeep Heritage:

Retains Jeep's iconic styling cues and off-road capability, particularly with available Selec-Trac NV244 or Command-Trac NV150 4WD systems.

Platform:

Built on the KJ platform, shared with the Dodge Nitro (later generation).

📋 Manual Details

Primary Focus:

Workshop Repair Service

Target Audience:

Mechanical Technicians

Estimated Pages:

Over 1500 (typical for comprehensive workshop manuals of this era)

Type:

Workshop Service Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Powertrain:

Engine (2.4L, 3.7L, 2.8L CRD), Transmission (42RLE Automatic, NV150/NV244 Transfer Case), Drivetrain (4WD Systems, Axles, Differentials)

Chassis:

Suspension (Front Independent, Rear Solid Axle), Steering System, Brake System (ABS, Hydraulic Components)

Electrical:

Body Control Module (BCM), Powertrain Control Module (PCM), Lighting Systems, Audio Systems, Power Accessories, Wiring Diagrams

Body And Interior:

Body Panels, Doors, Hood, Tailgate, Interior Trim, Seating, HVAC System (Climate Control)

Fuel System:

Fuel tank, fuel pump, fuel injectors, fuel lines, fuel filter (in-tank).

Cooling System:

Radiator, water pump, thermostat, coolant hoses, heater core, cooling fan.

Exhaust System:

Exhaust manifolds, catalytic converter, mufflers, pipes, hangers, oxygen sensors.

Climate Control:

HVAC blower motor, evaporator, condenser, refrigerant system, heater control panel, actuators.

Maintenance:

Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replacements, Belt Inspections

Repair:

Engine Overhaul, Transmission Rebuild, Suspension Component Replacement, Brake Pad/Rotor Replacement, Electrical Component Diagnosis and Repair

Troubleshooting:

Diagnostic Trouble Codes (DTCs), Symptom-Based Troubleshooting Guides, Electrical System Fault Finding

Diagnostics:

Use of Scan Tools, Live Data Interpretation, Sensor Testing, Actuator Testing

Engine Mechanical:

Engine assembly/disassembly, cylinder head removal/installation, piston/connecting rod service, crankshaft service, timing components.

Transmission Repair:

Complete rebuild procedures for the 42RLE automatic transmission, clutch service for manual transmission, transfer case disassembly/assembly.

Brake System Repair:

Front and rear brake pad/rotor replacement, caliper service, brake line repair, ABS modulator diagnostics.

Suspension Repair:

Strut/shock absorber replacement, control arm service, ball joint replacement, sway bar links, wheel bearing service.

Electrical Diagnostics:

Detailed wiring diagrams, component testing procedures, diagnostic trouble code (DTC) lookup tables, PCM/BCM reflash procedures.

Depth:

Comprehensive diagnostic procedures, detailed repair instructions with torque specifications, exploded views, wiring schematics, and specifications for all major components.

Torque Specifications:

Includes comprehensive torque values for all critical fasteners and components.

Wiring Diagrams:

Full set of color-coded wiring diagrams for all vehicle systems.

Illustrations:

Exploded views and line drawings to illustrate component placement and assembly/disassembly sequences.

Special Tools:

Lists and descriptions of special tools required for specific repair procedures.

📊 Manual Specifications

PDF Quality:

High-resolution scans, searchable text where applicable, optimized for clarity.

Printability:

Printable pages for easy workshop use.

Binding:

N/A (Digital PDF)

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

2 4L DOHc I4:

Chrysler PowerTech 2.4L (GEMA) DOHC inline-4 cylinder engine, 16 valves. Power: ~150 hp @ 5800 rpm, Torque: ~170 lb-ft @ 4000 rpm.

3 7L Sohc V6:

Chrysler PowerTech 3.7L SOHC V6 engine, 12 valves. Power: ~210-215 hp @ 5200-5500 rpm, Torque: ~235-240 lb-ft @ 4000 rpm.

2 8L Crdi Diesel:

VM Motori R428 2.8L CRD (Common Rail Diesel) Turbocharged inline-4 cylinder engine. Power: ~150 hp @ 3800 rpm, Torque: ~260-295 lb-ft @ 1800-2600 rpm (depending on year/tune).

Fuel Type:

Unleaded gasoline (2.4L, 3.7L), Diesel (2.8L CRD)

Induction Type:

Electronic Fuel Injection (EFI) for all engines. Turbocharger for 2.8L CRD.

🔧 Transmission

Automatic:

42RLE 4-speed automatic transmission (standard on most models, especially V6).

Manual:

NV150 5-speed manual transmission (available on some 2.4L and 3.7L models).

Transfer Case:

NV244 (Selec-Trac) full-time 4WD system with 2WD/4WD Auto/4WD Lock modes or NV150 (Command-Trac) part-time 2WD/4WD system.

📐 Dimensions

Length:

Approx. 174.4 inches (4430 mm)

Width:

Approx. 72.5 inches (1841 mm)

Height:

Approx. 68.7 inches (1745 mm)

Wheelbase:

Approx. 104.7 inches (2659 mm)

Curb Weight:

Approx. 3700 - 4200 lbs (1680 - 1905 kg), depending on engine and drivetrain.

Towing Capacity:

Up to 3500 lbs (1588 kg) with V6 engine and proper towing package.

🛡️ Safety Features

NHTSA Front Impact:

4/5 stars (driver/passenger) for 2002-2007 models.

IIHS Side Impact:

Acceptable (2002-2004 models), Good (2005-2007 models).

ABS:

Standard Anti-lock Braking System (ABS).

Traction Control:

Available Traction Control System (TCS) and Electronic Stability Control (ESC) on later models.

Airbags:

Frontal airbags, optional side curtain airbags on some later models.

Rollover Protection:

Standard Electronic Roll Mitigation (ERM) on models equipped with ESC.

💡 Technology Features

Audio System:

Standard AM/FM/CD player, optional Infinity premium audio system, available Sirius Satellite Radio.

Navigation:

Optional factory navigation system available on higher trim levels.

Cruise Control:

Standard cruise control.

Power Outlets:

12V auxiliary power outlets.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000-7,500 miles (8,000-12,000 km) or 6 months, depending on driving conditions and engine oil type used.

Transmission Fluid:

Inspect every 30,000 miles (48,000 km), replace fluid and filter typically every 60,000-100,000 miles (96,000-160,000 km), consult manual for specific recommendations.

Engine Oil:

5W-30 synthetic blend or full synthetic recommended for all engines. Check owner's manual for specific API service classification (e.g., API SN).

Coolant:

Mopar OAT (Orange) or equivalent HOAT coolant. 50/50 mixture with distilled water. Capacity: Approx. 8.5-10 quarts (8.0-9.5 liters).

Transmission Fluid:

ATF+4 (MS-9602) for 42RLE automatic transmission. Capacity: Approx. 4.5-5 quarts (4.3-4.7 liters) for a pan drop and refill.

Differential Fluid:

API GL-5, 75W-90 synthetic gear oil for front and rear differentials. Capacity: Approx. 1.75-2 quarts per axle.

Common Complaints:

Radiator leaks (plastic tanks), water pump leaks, accessory drive belt tensioner failure, spark plug blowout (3.7L V6), power steering pump whine, PCV valve issues, fuel pump failures, and potential transmission solenoid issues in the 42RLE.

Diesel Specific:

Glow plug issues, EGR valve clogging, turbocharger problems, and injector concerns on the 2.8L CRD.

📚 Vehicle History

Jeep Legacy:

Continues Jeep's legacy of ruggedness and off-road prowess, offering a more compact and car-like option compared to traditional Jeep SUVs.

Kj Generation:

First generation of the Jeep Liberty, replacing the Jeep Cherokee (XJ) in the North American market.

Facelift:

Received a minor facelift for the 2005 model year, including updated exterior styling (grille, headlights) and interior refinements.

Manufacturing Location:

Toledo, Ohio, USA

Production Years:

2001-2007

🏆 Awards & Recognition

Offroad Capability:

Often recognized for its respectable off-road capability, especially in the KJ generation, contributing to Jeep's brand image.

Consumer Reports:

Varied consumer reliability ratings over its production run; specific issues were documented for certain components.