Brand Perception:
Known for off-road capability and ruggedness, positioned as a practical yet adventurous SUV.
Key Competitors:
Ford Escape, Chevrolet Equinox, Honda CR-V, Toyota RAV4.
Off Road Capability:
Optional four-wheel-drive systems (Selec-Trac NV244 transfer case, Command-Trac NV235 transfer case) with low-range gearing, higher ground clearance than many competitors.
Powertrain Options:
Choice between a robust V6 gasoline engine and a torque-rich diesel engine (2.8L CRD).
Utility:
Good towing capacity for its class, versatile cargo space.
Powertrain:
Engine (3.7L V6 PowerTech, 2.8L CRD Diesel), Transmission (42RLE Automatic, NV1500/NV2550 Manual), Transfer Case, Drivetrain.
Chassis:
Suspension (Independent Front, Solid Rear), Steering System, Brake System (ABS included).
Electrical:
12V Battery System, Charging System, Starting System, Lighting, Instrumentation, Powertrain Control Module (PCM), Body Control Module (BCM), HVAC Controls, Audio System, Power Accessories.
Body:
Body Panels, Doors, Glass, Seats, Interior Trim, Bumpers, Exterior Trim.
Diagnostics:
Troubleshooting charts, diagnostic trouble codes (DTCs), diagnostic procedures.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tire rotation, spark plug replacement.
Repair:
Engine overhaul, transmission repair/rebuild, brake component replacement, suspension and steering component replacement, electrical component testing and replacement, body panel repair.
Diagnostics Troubleshooting:
Step-by-step diagnostic guides for common and complex issues, wiring diagrams for electrical system troubleshooting.
Specifications:
Torque specifications, clearances, fluid capacities, diagnostic parameters.
Depth:
Comprehensive from basic routine maintenance to advanced engine and transmission diagnostics and repair, including detailed wiring schematics and exploded views.
Engine 1 Displacement:
3.7L (226 cu in)
Engine 1 Configuration:
SOHC V6
Engine 1 Power:
Approx. 210 hp @ 5200 rpm (varies slightly by year/tune)
Engine 1 Torque:
Approx. 235 lb-ft @ 4000 rpm (varies slightly by year/tune)
Engine 1 Fuel System:
Sequential Multi-Port Fuel Injection (MPI)
Engine 2 Displacement:
2.8L (171 cu in)
Engine 2 Configuration:
DOHC Turbocharged Diesel (VM Motori R 428)
Engine 2 Power:
Approx. 150 hp @ 3800 rpm
Engine 2 Torque:
Approx. 260 lb-ft @ 1800 rpm
Engine 2 Fuel System:
Common Rail Direct Injection (CRDI)
Automatic Transmission Model:
42RLE (4-speed Automatic)
Automatic Transmission Fluid:
ATF+4 (Mopar)
Manual Transmission Model 1:
NV1500 (5-speed Manual)
Manual Transmission Model 2:
NV2550 (5-speed Manual)
Manual Transmission Fluid:
Manual Transmission Lubricant (API GL-4, SAE 75W-90)
Transfer Case Options:
Selec-Trac NV244 (Full-time 4WD), Command-Trac NV235 (Part-time 4WD).
4Wd System:
Available with rear-wheel drive or four-wheel drive systems.
Wheelbase:
104.2 inches (2647 mm)
Length:
177.1 inches (4498 mm)
Width:
72.4 inches (1839 mm)
Height:
72.5 inches (1841 mm) (4WD models)
Curb Weight Min:
Approx. 3800 lbs (1724 kg)
Curb Weight Max:
Approx. 4200 lbs (1905 kg)
Towing Capacity:
Up to 5,000 lbs (2268 kg) (with proper equipment and engine configuration)
NHTSA Frontal Driver Impact:
Good (with front side airbags)
NHTSA Frontal Passenger Impact:
Good (with front side airbags)
IIHS Front Offset Test:
Acceptable
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Available Traction Control System (TCS)
Electronic Stability:
Available Electronic Stability Program (ESP)
Airbags:
Driver and front passenger airbags, optional front seat-mounted side-impact airbags.
Seatbelts:
Three-point seat belts in all seating positions, pretensioners for front seats.
Audio System:
Factory-installed AM/FM stereo with CD player, optional Infinity premium audio system, SiriusXM Satellite Radio readiness.
Navigation:
Optional factory navigation system available on some trims.
Cruise Control:
Standard cruise control functionality.
Auxiliary Input:
Optional auxiliary audio input jack for external devices.
Oil Change Interval:
Every 5,000 to 7,500 miles (8,000 to 12,000 km) or 6 months, depending on driving conditions. Consult manual for specifics.
Engine Air Filter Replacement:
Every 30,000 miles (48,000 km) or as needed based on inspection.
Spark Plug Replacement 3.7L:
Approx. 100,000 miles (160,000 km) (check specific plug type and manual).
Automatic Transmission Service:
Every 30,000 to 60,000 miles (48,000 to 96,000 km) or as per manual. Fluid and filter change recommended.
Engine Oil 3.7L:
SAE 5W-30 Synthetic (API SN or higher recommended, refer to manual for exact spec).
Engine Oil 2.8L Crd:
SAE 5W-40 Synthetic Diesel Engine Oil (API CJ-4 or CK-4 recommended).
Coolant:
Mopar Antifreeze/Coolant (HOAT) - Orange or equivalent.
Cracked Cylinder Heads 3.7L:
A known issue in some 3.7L PowerTech V6 engines, particularly those produced early in the generation. This manual would detail diagnostic and repair procedures.
Vacuum Leaks 3.7L:
Common cause of rough idle and check engine lights, often related to intake manifold gaskets or hoses.
Diesel Glow Plugs 2.8L Crd:
Glow plug failures can affect cold starting. The manual provides testing and replacement procedures.
Powertrain Control Module (PCM) Issues:
Intermittent electrical gremlins and communication issues can sometimes be traced to the PCM or related wiring harnesses.
Suspension Components:
Ball joints, tie rod ends, and sway bar links can wear over time due to the vehicle's weight and intended use.
Jeep Legacy:
Jeep has a long-standing reputation for producing rugged, capable off-road vehicles dating back to WWII.
Kj Generation:
The KJ Liberty (2002-2007) was the second generation of Jeep's mid-size SUV, succeeding the Cherokee XJ in North America. It was built on DaimlerChrysler's compact SUV platform (shared with Dodge Nitro).
Manufacturing Location:
Toledo, Ohio, USA
Model Life Cycle:
2002-2007 (KJ generation).
