🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation: WJ Product Name: Jeep Grand Cherokee WJ 44-4 Service Repair Manual 👋 Introduction Market Position Segment: Mid-size Luxury SUV Target Audience: Enthusiasts, DIY mechanics, professional technicians, fleet owners Competitive Analysis Competitors: Ford Explorer, Chevrolet Blazer/TrailBlazer, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery Key Features Jeep Heritage: Renowned off-road capability, robust construction, premium interior appointments Wj Generation Focus: Refined ride quality compared to previous generations, improved interior comfort and features, availability of more powerful V8 engine option 📋 Manual Details Coverage Areas Vehicle Model Years: 1999-2004 Engine Options Covered: 4.0L Inline-6 (AMC 242), 4.7L V8 (PowerTech, EVC) Trim Levels Covered: Laredo, Limited, Overland, Sport, Special Editions Page Count Estimated Pages: 2000+ Manual Type Type: Factory Service Manual (FSM) Language Language: English Format Format: Digital (PDF/eBook) 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Engine Performance, Fuel System, Exhaust System, Ignition System, Cooling System, Lubrication System, Transmission (42RE, 45RFE/48RE), Transfer Case (NV242, NV247, NV231), Driveline (Axles, Driveshafts, Differentials) Chassis: Suspension (Front/Rear Solid Axle, Independent Front Suspension on some early models), Steering System, Brake System (Front Disc, Rear Disc/Drum), Wheel & Tire Specifications Electrical: Body Control Module (BCM), Powertrain Control Module (PCM), Lighting, Instruments & Gauges, Audio Systems, Power Accessories (Windows, Locks, Mirrors), Climate Control, Antilock Braking System (ABS), Cruise Control, Security System Body And Trim: Exterior Body Panels, Interior Trim, Seats, Doors, Glass, Roof System, Bumpers, HVAC System Components Procedures Included Maintenance: Scheduled Maintenance Intervals, Fluid Changes (Oil, Coolant, Transmission, Differential), Filter Replacements, Lubrication Points Diagnostics: Troubleshooting Charts, Symptom-to-Cause Analysis, Diagnostic Trouble Codes (DTCs) and Diagnosis, Wiring Diagrams, Component Testing Repair And Rebuild: Engine Overhaul Procedures, Transmission Rebuilds, Suspension Component Replacement, Brake Caliper/Rotor Service, Drivetrain Component Repair, Electrical Component Replacement and Repair Specifications And Tolerances: Torque Specifications, Clearances, Alignment Data, Component Dimensions Technical Depth Depth: Comprehensive (from basic maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics) 📊 Manual Specifications File Format Searchable Text: Yes (typically) Printable: Yes Print Quality Quality: High-resolution scans, clear diagrams and illustrations Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine 1 Type: Inline-6 Cylinder Engine 1 Displacement: 4.0 Liters (242 cubic inches) Engine 1 Code: AMC 242 (PowerTech) Engine 1 Horsepower Range: 190-205 hp Engine 1 Torque Range: 235-255 lb-ft Optional Engine Engine 2 Type: V8 Cylinder Engine 2 Displacement: 4.7 Liters (285 cubic inches) Engine 2 Code: PowerTech (EVC) Engine 2 Horsepower Range: 220-255 hp Engine 2 Torque Range: 267-312 lb-ft Fuel System Fuel Delivery: Electronic Fuel Injection (MPI) Fuel Type: Unleaded Gasoline Performance Compression Ratio 4.0L: 8.8:1 Compression Ratio 4.7L: 8.7:1 🔧 Transmission Standard Transmission Type 4.0L: 4-Speed Automatic (42RE) Optional Transmission Type 4.7L: 4-Speed Automatic (45RFE / 48RE) Features Transfer Case Options: Selec-Trac (NV242), Quadra-Trac II (NV247), Command-Trac (NV231 on some base models) Transmission Fluid Spec 42Re: ATF+3 (Mopar) Transmission Fluid Spec 45Rfe 48Re: ATF+4 (Mopar) 📐 Dimensions Exterior Wheelbase: 116.1 inches Length: 184.5 inches Width: 73.5 inches Height: 66.7 inches Weights Curb Weight Range: 4,300 - 4,700 lbs Towing Capacity Range: 5,000 - 7,200 lbs (depending on engine, axle ratio, and towing package) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 4/5 Stars (1999-2001 models) NHTSA Front Impact Passenger: 4/5 Stars (1999-2001 models) IIHS Side Impact: Good (for applicable model years/configurations) Active Features ABS: Standard (4-wheel disc brakes) Traction Control: Optional (on some models/trims) Passive Features Airbags: Driver and Passenger front airbags, Optional side airbags Seat Belts: 3-point seat belts with pretensioners 💡 Technology Features Infotainment Audio Systems: Factory AM/FM/CD, optional premium Infinity Gold sound system with subwoofer. Navigation: Optional factory navigation system available on higher trims. Driver Assistance Cruise Control: Standard on most trims. Parking Sensors: Optional rear park assist system. Connectivity Power Accessories: Power windows, power door locks, power mirrors standard on most trims. Remote Keyless Entry: Standard on most trims. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-7,500 miles or 6-12 months, depending on oil type and driving conditions (refer to specific year/model recommendations). Transmission Fluid Service: Every 30,000-60,000 miles or as recommended by the manufacturer. Coolant Change: Every 30,000-100,000 miles, depending on coolant type. Fluid Specifications Engine Oil 4.0L: SAE 10W-30 API Service SG or higher (or 10W-40 for severe conditions) Engine Oil 4.7L: SAE 5W-30 API Service SL or higher (or 10W-30 for severe conditions) Coolant: Chrysler/Mopar HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant (50/50 mix with distilled water) Known Issues Cooling System Leaks: Common leaks from radiator, heater core, and water pump. Plastic end tanks on radiators can become brittle. Head Gasket Failure: More prevalent on early 4.7L V8 models, particularly if overheated. Transmission Issues: Solenoid pack issues in 45RFE/48RE, occasional torque converter shudder. Transfer Case Slippage: NV247 Quadra-Trac II can experience slippage if fluid is degraded or if the clutch pack wears. Power Steering Pump Noise: Can...
Suspension (Front/Rear Solid Axle, Independent Front Suspension on some early models), Steering System, Brake System (Front Disc, Rear Disc/Drum), Wheel & Tire Specifications
Electrical:
Body Control Module (BCM), Powertrain Control Module (PCM), Lighting, Instruments & Gauges, Audio Systems, Power Accessories (Windows, Locks, Mirrors), Climate Control, Antilock Braking System (ABS), Cruise Control, Security System
Body And Trim:
Exterior Body Panels, Interior Trim, Seats, Doors, Glass, Roof System, Bumpers, HVAC System Components
Common leaks from radiator, heater core, and water pump. Plastic end tanks on radiators can become brittle.
Head Gasket Failure:
More prevalent on early 4.7L V8 models, particularly if overheated.
Transmission Issues:
Solenoid pack issues in 45RFE/48RE, occasional torque converter shudder.
Transfer Case Slippage:
NV247 Quadra-Trac II can experience slippage if fluid is degraded or if the clutch pack wears.
Power Steering Pump Noise:
Can develop whining noise, especially when turning.
Climate Control Actuators:
Blend door actuators can fail, leading to incorrect temperature or air direction.
Rust And Corrosion:
Varies by region, but can affect rocker panels, rear quarter panels, and frame components, especially in areas with road salt.
📚 Vehicle History
Brand Heritage
Jeep Legacy:
Founded in 1941, Jeep is synonymous with ruggedness, off-road capability, and adventure.
Model Evolution
Wj Introduction:
Introduced for the 1999 model year, the WJ was a significant redesign from the previous ZJ Grand Cherokee, featuring a unibody construction with improved aerodynamics and a more car-like ride.
Wj Facelift:
Received a facelift for the 2002 model year, with updated exterior styling (grille, headlights, taillights) and interior refinements, including a redesigned dashboard and improved materials. The 4.7L V8 also saw power increases.
Production
Production Years:
1999-2004
Manufacturing Locations:
Detroit, Michigan, USA; Toluca, Mexico
🏆 Awards & Recognition
Recognitions
Motor Trend SUV Of The Year:
Jeep Grand Cherokee (ZJ generation predecessor) won MotorTrend SUV of the Year in 1993.
Other Automotive Press Awards:
The WJ generation was generally well-received by automotive press for its blend of comfort, capability, and luxury for its time.