Segment:
Mid-size luxury SUV
Target Audience:
Owners seeking to perform DIY maintenance and repairs, independent repair shops, automotive technicians
Key Competitors Era:
Ford Explorer, Chevrolet TrailBlazer/Blazer, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery
Distinguishing Features:
Renowned Jeep off-road capability (even in 4WD variants), comfortable ride, spacious interior, availability of powerful V8 engine option
Value Proposition:
Provides authoritative, factory-level repair information, empowering owners and technicians with the knowledge to maintain and repair the vehicle correctly and efficiently.
Coverage Type:
Full Service & Repair Workshop Manual
Scope:
All repairs, servicing, diagnostics, troubleshooting, and component overhaul
Estimated Page Count:
2500+
Type:
Factory Service Manual (FSM)
Format:
Digital Download (PDF)
Accessibility:
Instant download to computer, tablet, or smartphone
Licensing:
No extra fees, no expiry dates
Powertrain:
Engine mechanical (4.0L, 4.7L), fuel system, ignition system, exhaust system, cooling system, lubrication system
Transmission Drivetrain:
Automatic transmissions (42RE, 45RFE/45RFE), transfer cases (NV231, NV242, NV247, NV249), axles (Dana 30, Dana 35, Chrysler 8.25, Dana 44 HD)
Chassis Suspension:
Front suspension (Solid axle/CV joints for 4WD, independent for 2WD), rear suspension (Solid axle), steering system, brake system (ABS, disc/drum configurations)
Electrical Electronics:
Battery, charging system, starting system, lighting, instrumentation, Body Control Module (BCM), Powertrain Control Module (PCM), CAN bus communication, audio system, power accessories (windows, locks, seats)
Body Interior:
Body panels, doors, windows, interior trim, seating, HVAC system, airbags, security system
Maintenance:
Oil changes, fluid checks and replacements, filter replacements, tire rotation, spark plug replacement, belt replacement
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), wiring diagrams, flowcharts for common issues
Repair Rebuild:
Engine overhaul, transmission repair/rebuild, brake caliper replacement, suspension component replacement, electrical component diagnosis and repair
Adjustment Calibration:
Wheel alignment, parking brake adjustment, throttle cable adjustment (if applicable)
Installation Removal:
Component removal and installation procedures for all major systems
Depth:
Comprehensive, from basic scheduled maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and wiring schematics
Engine 1 Code:
4.0L Inline 6-Cylinder (I6) 'Power Tech'
Engine 1 Displacement:
3957 cc (241.4 cu in)
Engine 1 Bore X Stroke:
3.875 in x 3.563 in (98.4 mm x 90.5 mm)
Engine 1 Compression Ratio:
8.75:1
Engine 1 Horsepower Approx:
185-190 hp @ 4600 rpm
Engine 1 Torque Approx:
235-245 lb-ft @ 3000 rpm
Engine 2 Code:
4.7L V8 'Power Tech'
Engine 2 Displacement:
4701 cc (286.8 cu in)
Engine 2 Bore X Stroke:
3.70 in x 3.40 in (94.0 mm x 86.4 mm)
Engine 2 Compression Ratio:
8.7:1 (99-01), 9.6:1 (02-04)
Engine 2 Horsepower Approx:
220-235 hp @ 4750-4800 rpm
Engine 2 Torque Approx:
300-325 lb-ft @ 3200-3300 rpm
Fuel Delivery Type:
Electronic Fuel Injection (EFI), Sequential Multi-Port Fuel Injection (SMPI)
Fuel Type:
Unleaded Gasoline (87 octane recommended)
Transmission Type Standard:
4-speed Automatic (42RE for 4.0L, 45RFE for 4.7L)
Transmission Type Optional:
None (45RFE updated to 5-speed 545RFE for 2002+ models with 4.7L)
Transfer Case Options:
NV231 (Command-Trac) - Part-time 2WD/4WD, NV242 (Selec-Trac) - Full-time 4WD, NV247 (Quadra-Trac II) - Full-time 4WD with 4-Low, NV249 (Quadra-Trac) - Full-time 4WD (early models)
Automatic Transmission Fluid Type:
ATF+4 (Mopar)
Transfer Case Fluid Type:
Mopar NV231/242/247: ATF+4, Mopar NV249: Dexron III
NHTSA Frontal Impact Driver:
4 Stars (1999-2001 models)
NHTSA Frontal Impact Passenger:
4 Stars (1999-2001 models)
IIHS Frontal Offset Score:
Acceptable (Good variation in testing methodology and reporting across years)
Traction Control:
Optional (Trak-Lok differentials, ESP on later models)
Airbags:
Driver and front passenger airbags standard; available side airbags on some models
Seat Belts:
Front and rear seat belts, pre-tensioners for front seats
Audio System Options:
Factory AM/FM/CD player, optional premium audio systems (Infinity Gold), available cassette player
Navigation:
Optional factory navigation system available on Limited models (rare)
Parking Assistance:
Optional rear parking sensors on later models
Remote Keyless Entry:
Available on Limited, optional on Laredo
Onstar:
Optional OnStar system available on some later models
Oil Change Interval:
Every 3,000-7,500 miles (5,000-12,000 km) or 6 months, depending on oil type and driving conditions (refer to manual for specifics)
Transmission Fluid Change Interval:
Every 30,000-60,000 miles (48,000-96,000 km) or 3 years, especially for heavy-duty use (refer to manual)
Coolant Flush Interval:
Every 30,000-100,000 miles (48,000-160,000 km) or 2-5 years, depending on coolant type
Spark Plug Replacement Interval 4.0L:
Approximately 100,000 miles (160,000 km) with long-life plugs
Spark Plug Replacement Interval 4.7L:
Approximately 30,000-100,000 miles (48,000-160,000 km) depending on plug type
Engine Oil Capacity 4.0L:
6 Quarts (5.7 Liters) with filter change
Engine Oil Capacity 4.7L:
7 Quarts (6.6 Liters) with filter change
Engine Oil Viscosity 4.0L:
10W-30 recommended, 5W-30 for extreme cold
Engine Oil Viscosity 4.7L:
5W-30 recommended, 10W-30 for extreme heat
Common Problems Engine:
Cracked cylinder heads (early 4.7L), oil filter adapter housing leaks, coolant leaks, rear main seal leaks
Common Problems Transmission:
Intermittent shifting issues, torque converter shudder, transmission cooler line leaks
Common Problems Suspension Steering:
Worn ball joints, control arm bushings, death wobble (front solid axle), power steering pump noise/leaks
Common Problems Electrical:
Window regulator failures, power lock actuator failures, HVAC blower motor resistor issues, PCM failures, instrument cluster issues
Common Problems Body:
Rattles and squeaks from interior trim, tailgate hinge wear, rear wiper motor failure
Brand Legacy:
Jeep, a brand with a long history of producing rugged, capable off-road vehicles, originated from military designs during World War II.
Wj Generation:
The WJ Grand Cherokee replaced the ZJ Grand Cherokee and introduced a more refined, unibody construction compared to earlier body-on-frame SUVs. It featured significantly improved on-road manners and a more luxurious interior.
Design Philosophy:
Designed to compete with luxury SUVs, the WJ offered a quieter ride, enhanced interior appointments, and the option of a powerful V8 engine, blending Jeep's off-road prowess with on-road comfort.
Production Period:
1999-2004
Manufacturing Locations:
Detroit, Michigan, USA; Brampton, Ontario, Canada
