Vehicle Segment:
Compact SUV/Sport Utility Vehicle
Target Audience:
Off-road enthusiasts, adventurers, and owners seeking a versatile and capable compact SUV with a diesel engine option.
Key Competitors 2005:
Toyota RAV4, Honda CR-V, Ford Escape, Nissan Xterra, Subaru Forester.
Jeep Liberty Niche:
Positioned as a more rugged and trail-capable option within the compact SUV segment, particularly with the diesel engine offering superior torque and fuel economy compared to gasoline counterparts.
Off Road Capability:
Command-Trac NV231 (optional part-time 2-speed transfer case) or Selec-Trac (optional full-time 2-speed transfer case) for enhanced off-road performance.
Diesel Engine Advantage:
The 2.8L CRD diesel engine provides excellent torque for towing and off-road situations, along with better fuel efficiency than many gasoline alternatives.
Body On Frame Construction:
Robust body-on-frame construction, contributing to its durability and towing capability, unlike many unibody competitors.
Engine Mechanical:
Detailed breakdown and repair procedures for the 2.8L CRD (Common Rail Diesel Engine) VM Motori (R428) engine, including cylinder head, block, pistons, crankshaft, camshafts, valve train, lubrication system, and cooling system.
Engine Fuel System:
Comprehensive coverage of the diesel injection system, including high-pressure fuel pump, common rail, injectors, fuel filters, and fuel lines. Diagnostic procedures for fuel system issues.
Engine Electrical Controls:
ECM (Engine Control Module) diagnostics, sensor data (crankshaft position, camshaft position, mass air flow, coolant temperature, etc.), glow plug system, and emission control systems (EGR).
Transmission Manual:
Repair and overhaul procedures for the NV1500 (5-speed manual) transmission, including clutch, gearbox, transfer case, and driveline components.
Transmission Automatic:
Repair and overhaul procedures for the 42RLE (4-speed automatic) transmission, including valve body, torque converter, gear sets, and electronic control system.
Drivetrain:
Front and rear axle assemblies, differentials, CV joints, driveshafts, and propeller shafts. Removal, installation, and overhaul procedures.
Suspension:
Front independent suspension (short-long arm), rear solid axle, shock absorbers, springs, control arms, ball joints, and bushings. Alignment specifications.
Steering:
Power steering system, steering gear, steering column, tie rod ends, and linkage. Steering wheel removal and replacement.
Brakes:
Front disc brakes, rear drum or disc brakes (depending on trim), ABS (Anti-lock Braking System), hydraulic lines, master cylinder, brake calipers, and brake pads/shoes. Parking brake system.
Electrical System:
Complete wiring diagrams, fuse box layouts, relay functions, battery, alternator, starter motor, lighting systems (headlights, taillights, interior), power windows, power locks, and accessories.
HVAC:
Heating, Ventilation, and Air Conditioning system components, including compressor, condenser, evaporator, blower motor, and refrigerant handling. Diagnostic procedures for cooling and heating issues.
Body And Chassis:
Body panel removal and installation, doors, hood, tailgate, bumpers, glass replacement, interior trim, and underbody components. Frame specifications and repair.
Diagnostics And Troubleshooting:
Diagnostic trouble codes (DTCs) with explanations and diagnostic flowcharts for various systems. Troubleshooting common problems, including starting issues, engine performance, and electrical faults.
Maintenance Procedures:
Oil changes, filter replacements (oil, fuel, air), fluid level checks and top-offs, belt inspections and replacement, spark plug replacement (if applicable to gasoline variants, though this manual focuses on diesel), coolant system flush, brake fluid flush, and tire rotation.
Repair Procedures:
Detailed step-by-step instructions for the removal, disassembly, inspection, repair, reassembly, and installation of all major vehicle components and systems.
Overhaul Procedures:
Complete engine rebuild procedures, transmission overhaul, differential rebuilding, and power steering system overhauls.
Diagnostic Procedures:
Utilizing scan tools for reading and clearing DTCs, live data interpretation, component testing, and pinpoint diagnostics for electrical and mechanical issues.
Specification Tables:
Torque specifications for all fasteners, fluid capacities, alignment angles, and electrical component test values.
Depth Level:
Comprehensive factory-level information suitable for professional technicians and advanced DIY enthusiasts.
Diagnostic Tools Required:
Information on required specialized tools and diagnostic equipment, including scan tools compatible with Chrysler's diagnostic protocols.
Wheelbase:
104.9 inches (2664 mm)
Length:
174.4 inches (4430 mm)
Width:
72.0 inches (1829 mm)
Height:
70.9 inches (1801 mm)
Ground Clearance:
8.1 inches (206 mm)
Approach Angle:
37.5 degrees
Departure Angle:
30.4 degrees
Passenger Volume:
Approx. 92.4 cubic feet (2617 liters)
Cargo Volume Behind Rear Seats:
Approx. 28.7 cubic feet (813 liters)
Cargo Volume With Rear Seats Folded:
Approx. 67.4 cubic feet (1908 liters)
Curb Weight:
Approx. 3900 - 4100 lbs (1769 - 1860 kg), varies by configuration
Gross Vehicle Weight Rating Gvwr:
Approx. 5300 lbs (2404 kg)
Towing Capacity:
Up to 3500 lbs (1588 kg) when properly equipped
Wheelbase Options:
16-inch or 17-inch alloy or steel wheels
Bolt Pattern:
5 x 114.3 mm (5 x 4.5 inches)
Tire Sizes Standard:
P235/70R16 (typical for base models)
Tire Sizes Optional:
LT235/75R16, P235/65R17 (typical for higher trims or off-road packages)
Engine Oil And Filter Change:
Every 7,500 miles (12,000 km) or 6 months, whichever comes first (with full synthetic oil).
Fuel Filter Replacement:
Every 15,000 miles (24,000 km) or 12 months. Crucial for diesel engine health.
Engine Air Filter Replacement:
Every 15,000 miles (24,000 km) or 12 months, or more frequently in dusty conditions.
Coolant Replacement:
Initial change at 100,000 miles (160,000 km) or 5 years, then every 50,000 miles (80,000 km) or 3 years.
Transmission Fluid Change Automatic:
Every 60,000 miles (96,000 km) or 4 years.
Transmission Fluid Change Manual:
Every 60,000 miles (96,000 km) or 4 years.
Brake Fluid Replacement:
Every 30,000 miles (48,000 km) or 2 years.
Engine Oil Specification:
SAE 5W-40 API CJ-4 or CK-4 rated synthetic diesel engine oil.
Coolant Specification:
Chrysler MS-12072 (or HOAT OAT - Orange) 50/50 mixture with distilled water.
Power Steering Fluid:
Chrysler MS-5901 (or Mopar Power Steering Fluid).
Common Diesel Issues:
Fuel injector issues, glow plug failure, EGR valve clogging, turbocharger problems, and potential issues with the common rail system due to fuel quality or contamination.
Common Transmission Issues:
Automatic transmission solenoid issues, manual transmission synchro wear.
Common Suspension Issues:
Worn ball joints, control arm bushings, and rear shock absorbers.
Common Electrical Issues:
Window regulator failures, power lock actuator issues, and occasional sensor failures.
Cooling System Potential Problems:
Cracked cylinder heads (though less common on the 2.8 CRD than earlier designs), radiator leaks, and water pump failures.
Jeep Legacy:
Jeep has a long-standing reputation for building rugged, capable off-road vehicles dating back to World War II.
Kj Generation Introduction:
The KJ Liberty was introduced for the 2002 model year, replacing the Cherokee (XJ) in North America. It represented a move to a more modern platform while retaining Jeep's core off-road identity.
2005 Updates:
The 2005 model year saw the introduction of the 2.8L CRD diesel engine as an option in North America, significantly enhancing its appeal for those seeking better fuel economy and torque. Minor styling and feature updates were also implemented.
Diesel Engine Significance:
The diesel option was a key differentiator in the compact SUV market at the time, attracting a specific customer base that valued its performance characteristics and efficiency.
Production Period:
2002-2007 (KJ generation)
Assembly Locations:
Toledo, Ohio, USA; East London, South Africa