Segment:
Mid-size Luxury SUV
Competitors:
Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, Land Rover Discovery
Unique Selling Points:
Jeep's legendary off-road capability, luxurious interior (for its time), powerful V8 engine option
Target Audience:
Families, outdoor enthusiasts, individuals seeking a capable and comfortable SUV
Powertrain:
Engine (4.0L I6, 4.7L V8), Transmission (42RE, 45RFE/545RFE), Transfer Case (NV242, NV247)
Chassis:
Suspension (Front/Rear), Steering, Brakes (ABS/Non-ABS), Driveline, Wheels & Tires
Electrical:
Engine Control Module (ECM), Powertrain Control Module (PCM), Body Control Module (BCM), Lighting, Power Accessories, Audio System, HVAC Controls, Instrument Cluster, Diagnostics (OBD-II)
Body And Interior:
Body Panels, Doors, Windows, Seats, Trim, HVAC System, Safety Restraints (Airbags)
Maintenance:
Oil Changes, Filter Replacements, Fluid Checks/Changes, Tune-ups, Belt Replacement
Repair:
Engine Component Rebuilds, Transmission Overhaul, Suspension Component Replacement, Brake System Repair, Electrical Component Diagnosis and Repair
Diagnostics:
Troubleshooting Charts, Symptom-Based Diagnostics, Diagnostic Trouble Codes (DTCs)
Depth:
Comprehensive (from basic maintenance to full engine and transmission rebuilds)
Diagrams:
Detailed step-by-step diagrams and illustrations for all procedures
Wiring Diagrams:
Complete and detailed electrical schematics for all systems
Transmission 1 Type:
42RE 4-Speed Automatic
Transmission 1 Drive Type:
RWD / 4WD
Transmission 2 Type:
45RFE (later 545RFE) 4-Speed Automatic
Transmission 2 Drive Type:
4WD
Transfer Case 1:
Selec-Trac NV242 (Full-time 4WD, 2WD, 4WD Part-Time, 4WD Low)
Transfer Case 2:
Quadra-Trac II NV247 (Full-time 4WD with variable torque split)
Automatic Transmission Fluid:
ATF+4 (Chrysler Material Standard MS-9602)
Wheelbase:
116.1 inches (2950 mm)
Length:
188.5 inches (4788 mm)
Width:
74.3 inches (1887 mm)
Height:
67.4 inches (1712 mm)
Curb Weight Min:
4428 lbs (2008 kg)
Gross Vehicle Weight Rating Max:
5800 lbs (2630 kg)
Towing Capacity Max:
6500 lbs (2948 kg)
Cargo Volume Behind Rear Seat:
37.5 cubic feet (1.06 cubic meters)
Cargo Volume With Rear Seat Folded:
73.0 cubic feet (2.07 cubic meters)
NHTSA Rollover Resistance:
4 stars (typically, depending on configuration)
ABS:
Standard (4-wheel disc with ABS)
Traction Control:
Optional (for some models/trims)
Airbags:
Driver and Passenger Frontal Airbags
Seatbelts:
Front and Rear Seatbelts, Driver and Passenger Pretensioners
Audio Options:
Available premium audio systems (e.g., Infinity Gold), CD players, cassette players.
Navigation:
Optional factory navigation system available on select trims.
Tire Pressure Monitoring:
Not typically standard on this generation.
Auxiliary Input:
Not standard; aftermarket solutions often used.
Oil Change Interval:
Every 3,000 - 5,000 miles (5,000 - 8,000 km) or 6 months, depending on driving conditions.
Transmission Fluid Change:
Every 30,000 - 60,000 miles (48,000 - 96,000 km), depending on driving conditions and fluid type used.
Coolant Change:
Every 30,000 miles (48,000 km) or 2 years for conventional coolant, or per manufacturer specification for HOAT/OAT coolants.
Engine Oil Type 4.0L:
API Certified SAE 10W-30 (Chrysler MS-6395)
Engine Oil Type 4.7L:
API Certified SAE 5W-30 (Chrysler MS-6395)
Coolant Type:
Ethylene Glycol based, typically a Mopar HOAT (Hybrid Organic Additive Technology) or OAT (Organic Additive Technology) coolant. Refer to manual for specific Mopar part number.
Common Problems Engine:
Cracked cylinder heads (especially early 4.7L V8), rear main seal leaks, oil filter housing leaks.
Common Problems Transmission:
Overheating, solenoid pack failures (45RFE/545RFE), torque converter issues.
Common Problems Suspension:
Worn track bar bushings, ball joint wear, premature failure of control arm bushings, steering stabilizer issues.
Common Problems Electrical:
Faulty power window regulators, HVAC blower motor resistor failure, ABS sensor failures, instrument cluster issues.
Common Problems Body:
Rust on rocker panels and rear quarter panels, headliner sagging, interior trim rattles.
Brand Legacy:
Jeep has a long history of producing rugged, capable off-road vehicles, originating with the WWII Willys MB.
Generation Wj Introduction:
The WJ Grand Cherokee replaced the ZJ Grand Cherokee for the 1999 model year, introducing a more refined chassis and updated powertrains.
Generation Wj Era:
1999-2004
Assembly Locations:
Detroit, Michigan, USA; Brampton, Ontario, Canada
