Segment:
Mid-size Luxury SUV
Jeep Positioning:
Jeep's flagship SUV offering a blend of luxury, off-road capability, and passenger comfort.
Key Competitors 2002:
Ford Explorer, Toyota 4Runner, Chevrolet Blazer, Nissan Pathfinder, Land Rover Discovery
Off Road Capability:
Renowned Jeep 4x4 systems (Quadra-Trac II, optional Quadra-Drive), solid rear axle, good ground clearance.
Interior Comfort:
Spacious cabin, available leather seating, premium sound systems, and a comfortable ride for its class.
Powertrain Options:
Choice of robust V8 engines or capable inline-6 engines, paired with durable automatic transmissions.
Powertrain:
Engine mechanical, fuel system, ignition system, cooling system, exhaust system, engine management (PCM/ECU)
Transmission Drivetrain:
Automatic transmission (42RE, 45RFE, 545RFE), transfer case (NV242, NV247), drive axles (front and rear), driveshafts, CV joints
Suspension Steering:
Front and rear suspension components, steering gear, power steering system, steering column
Brakes:
Front and rear disc brakes, anti-lock braking system (ABS), parking brake
Electrical Electronics:
Battery, charging system, starting system, lighting, instrument cluster, body control module (BCM), power accessories, power distribution, wiring diagrams, diagnostic connectors (OBD-II)
HVAC:
Heating, ventilation, and air conditioning system
Body Chassis:
Body panels, interior trim, glass, doors, hood, tailgate, chassis frame, bumpers
Maintenance:
Routine checks, fluid changes (oil, coolant, transmission fluid, brake fluid, power steering fluid), filter replacements, lubrication
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs), electrical system diagnostics, scan tool usage
Repair:
Component removal and installation, internal component repair (e.g., engine internals, transmission overhaul), bodywork repairs, electrical component replacement
Specifications:
Torque specifications, fluid capacities, diagnostic parameters, alignment specifications, dimensional data
Depth:
Comprehensive, covering everything from basic maintenance to complete engine and transmission overhauls, including in-depth electrical diagnostics and wiring diagrams.
Engine 1:
4.0L Inline-6 (PowerTech)
Engine 2:
4.7L V8 (PowerTech)
Engine 1 Horsepower:
190 hp @ 4600 rpm
Engine 1 Torque:
235 lb-ft @ 3200 rpm
Engine 2 Horsepower:
235 hp @ 4700 rpm (HO: 260 hp @ 5000 rpm)
Engine 2 Torque:
295 lb-ft @ 3200 rpm (HO: 325 lb-ft @ 3200 rpm)
Fuel Delivery:
Sequential Multi-Port Fuel Injection (MPI)
Recommended Fuel:
87 Octane Unleaded (91 Octane recommended for 4.7L HO)
Standard Transmission:
4-speed Automatic (42RE for 4.0L, 45RFE for 4.7L)
Optional Transmission:
4-speed Automatic (545RFE for 4.7L HO models)
Transfer Case Std:
Selec-Trac NV242 (full-time 4WD with 2WD option)
Transfer Case Opt:
Quadra-Trac II NV247 (full-time 4WD with power transfer unit), Quadra-Drive (NV247 with electronic limited-slip differentials)
Length:
183.7 inches (4666 mm)
Width:
72.1 inches (1831 mm)
Height:
66.7 inches (1694 mm)
Wheelbase:
109.0 inches (2769 mm)
Passenger Volume:
Approximately 103.4 cu ft (2928 L)
Cargo Volume Behind Rear Seat:
Approximately 37.5 cu ft (1062 L)
Cargo Volume Max:
Approximately 74.5 cu ft (2109 L)
Curb Weight Std:
Approximately 4,300 - 4,500 lbs (1950 - 2041 kg)
Towing Capacity:
Up to 5,000 lbs (2268 kg) with factory tow package
NHTSA Driver Front Impact:
Four Stars
NHTSA Passenger Front Impact:
Four Stars
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Available Traction Control System (TCS)
Airbags:
Driver and front passenger airbags, optional side-impact airbags
Audio System:
Available premium Infinity Gold sound system, CD player, cassette player, steering wheel audio controls.
Navigation:
Optional factory navigation system
Cruise Control:
Standard cruise control
Rear Parking Assist:
Optional ParkSense rear parking assist system
OBD Ii Port:
Standard OBD-II diagnostic port for engine and system scanning.
Oil Change Interval:
Every 5,000 - 7,500 miles or 6 months, whichever comes first (refer to manual for specific engine and oil type).
Transmission Fluid Change:
Every 30,000 - 60,000 miles, depending on driving conditions (refer to manual).
Coolant Flush Interval:
Every 30,000 - 50,000 miles or 2-3 years.
Engine Oil Spec 4.0L:
SAE 10W-30 API SJ or higher (e.g., Mopar 5W-30)
Engine Oil Spec 4.7L:
SAE 5W-30 API SL or higher (e.g., Mopar 5W-30)
Transmission Fluid 42Re/45Rfe:
ATF+4 (MS-9602)
Transfer Case Fluid Nv242:
ATF+4 (MS-9602)
Transfer Case Fluid Nv247:
Mopar NV247 Transfer Case Lubricant (or equivalent) - Critical to use correct fluid!
Coolant Type:
Chrysler HOAT (Hybrid Organic Acid Technology) OAT 50/50 mix
Common Issue 1:
Heater Treater (blend door actuator failure in HVAC system)
Common Issue 2:
Front axle universal joints (U-joints) wear and noise
Common Issue 3:
Power steering pump leaks and whine
Common Issue 4:
Cracked exhaust manifolds (especially on the 4.7L V8)
Common Issue 5:
Transmission solenoid pack failure (leading to shifting issues)
Jeep Legacy:
Jeep's long-standing reputation for ruggedness, off-road prowess, and capability.
Wj Generation Introduction:
The WJ Grand Cherokee debuted for the 1999 model year, replacing the ZJ. The 2002 model represents a mid-cycle refinement.
Wj Facelift Year:
2002 saw a significant refresh with updated styling, improved interior, and powertrain enhancements.
Production Years Wj:
1999-2004
Assembly Location:
Jefferson North Assembly Plant, Detroit, Michigan, USA
