Segment:
Mid-size Luxury SUV
Key Selling Points:
Off-road capability, comfortable ride, spacious interior, premium features
Key Competitors:
Ford Explorer, Chevrolet Blazer, Toyota 4Runner, Land Rover Discovery
Vehicle Platform:
Jeep WJ platform, shared with some Mercedes-Benz components due to DaimlerChrysler ownership
Powertrain Options:
Available with robust inline-6 and V8 engines, known for durability and towing capacity
4X4 Systems:
Offered with various 4x4 systems including Quadra-Trac II and Quadra-Drive
Target Audience:
Dealership technicians, professional mechanics, and knowledgeable DIY enthusiasts
Benefits:
Empowers owners and technicians with factory-accurate information for efficient and correct repairs and maintenance
Primary Coverage:
Comprehensive service, repair, and maintenance for Jeep Grand Cherokee (WJ)
Secondary Coverage:
Includes diagnostics, troubleshooting, electrical schematics, and specifications
Estimated Page Count:
Thousands (typical for FSM)
Type:
Factory Service Manual (FSM) / Shop Manual
Engine:
Detailed diagnosis, repair, and overhaul for 4.0L I6 and 4.7L V8 engines
Drivetrain:
Covers NV242, NV247, and NV244 transfer cases; front and rear differentials; drivelines; U-joints
Chassis:
Includes frame, suspension components (front and rear), steering system
Brakes:
Complete coverage of ABS, front and rear brake systems, parking brake
Electrical:
Extensive coverage including battery, starting, charging, ignition, lighting, instrument panel, audio, horn, speed control, turn signals, wipers, lamps, passive restraints, theft/security, chimes, and comprehensive wiring diagrams
Fuel System:
Fuel delivery, injection, tank, lines, and evaporative emission control
Cooling System:
Radiator, water pump, thermostat, coolant, fan systems
Transmission:
Service and repair for 42RE, 44RE, 45RFE, and 545RFE automatic transmissions
Body:
Body construction, interior components, seating systems, locks, exterior trim, frame, and bumpers
HVAC:
Heating, ventilation, and air conditioning (HVAC) systems
Emissions:
Emission control systems and related components
Maintenance:
Scheduled maintenance, fluid changes, lubrication, filter replacements, inspections
Troubleshooting:
Diagnostic procedures for various systems, symptom-based troubleshooting guides
Repair:
Step-by-step repair instructions for all major components and systems
Diagnostics:
Includes diagnostic trouble codes (DTCs) and related diagnostic strategies
Specifications:
Detailed torque specifications, clearances, fluid capacities, and electrical data
Wiring Diagrams:
Comprehensive and detailed electrical wiring diagrams for all circuits
Depth:
Factory-level diagnostic and repair procedures, suitable for dealership technicians and advanced DIYers
Detail Level:
Includes disassembly, assembly, testing, adjustment, and calibration procedures
Engine 1 Code:
4.0L OHV I6
Engine 1 Displacement:
3952 cc (241 cu in)
Engine 1 Horsepower:
Approx. 190-195 hp @ 4600 rpm
Engine 1 Torque:
Approx. 235 lb-ft @ 3200 rpm
Engine 2 Code:
4.7L OHV V8 (PowerTech)
Engine 2 Displacement:
4701 cc (287 cu in)
Engine 2 Horsepower:
Approx. 220-235 hp @ 4800-5000 rpm
Engine 2 Torque:
Approx. 285-325 lb-ft @ 3200-3600 rpm
Injection Type:
Multi-point Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline (87 octane recommended, higher for optimal performance on 4.7L)
Transmission Type:
4-speed automatic (e.g., 42RE for 4.0L, 45RFE/545RFE for 4.7L)
Transmission Type:
Manual transmission not generally offered on WJ platform
Transfer Case Options:
NV242 Selec-Trac (full-time 2WD/4WD), NV247 Quadra-Trac II (full-time 4WD with 2-speed), NV244 (some models, similar to NV247)
Drive Modes:
2WD High, 4WD High (locked/unlocked), 4WD Low
Atf Type 42Re:
ATF+4 (Mopar)
Atf Type 45Rfe/545Rfe:
ATF+4 (Mopar)
Transfer Case Fluid Nv242/Nv247:
NV247 requires special Mopar fluid; NV242 typically uses ATF+4 or equivalent
Length:
Approx. 187.6 inches (4765 mm)
Width:
Approx. 72.4 inches (1839 mm)
Height:
Approx. 66.9 inches (1700 mm)
Wheelbase:
Approx. 116 inches (2946 mm)
Curb Weight:
Approx. 4,200 - 4,600 lbs (1905 - 2087 kg), varies by engine and drivetrain
Towing Capacity:
Up to 6,500 lbs (2948 kg) with proper towing package
NHTSA Front Impact:
4-star driver, 5-star passenger (model year dependent)
IIHS Side Impact:
Acceptable (model year dependent)
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Available Traction Control System (TCS)
Airbags:
Standard front airbags, available front side airbags
Seatbelts:
Three-point front and rear seatbelts, pretensioners
Rollover Protection:
Design considerations for SUV rollover resistance
Audio Systems:
Factory AM/FM/CD players, optional Infinity Gold premium audio system, cassette players (early)
Navigation:
Dealer-installed or aftermarket navigation options existed, not typically factory-integrated on all trims.
Cruise Control:
Standard cruise control system
Oem Connectivity:
Limited connectivity by modern standards; primarily focused on basic vehicle functions. Some models may have offered basic remote keyless entry.
Oil Change Interval:
Typically 3,000-5,000 miles or 3-6 months (refer to manual for exact recommendation based on driving conditions)
Tire Rotation:
Every 5,000-7,500 miles
Transmission Fluid Change:
Typically every 30,000-60,000 miles, dependent on usage
Engine Oil 4.0L:
SAE 5W-30 (API certified)
Engine Oil 4.7L:
SAE 5W-30 or 5W-40 (API certified)
Coolant:
Mopar OAT (5/150) Extended Life Antifreeze/Coolant (or equivalent orange silicate-free)
Common Problems:
Headliner sag, evaporator core leaks (HVAC), rear main seal leaks, radiator cracking (early models), death wobble (related to steering/suspension), electronicTimeControl (ETC) issues on 4.7L.
Diagnostic Challenges:
Electrical gremlins, CAN bus communication issues, sensor failures can require in-depth diagnosis covered by the FSM.
Jeep Legacy:
Jeep has a long-standing reputation for ruggedness and off-road capability
Wj Generation:
The WJ generation (1999-2004) represented a significant redesign from the ZJ, focusing on improved on-road comfort, refinement, and a more upscale interior while retaining off-road prowess.
Key Changes Wj:
Introduction of the 4.7L V8, more advanced 4x4 systems, improved interior materials, revised exterior styling, increased wheelbase for better ride quality.
Manufacturing Plant:
Jefferson North Assembly, Detroit, Michigan
Production Volume:
Hundreds of thousands of units produced globally
