🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation Generation: WJ Codes Internal Chassis Code: WJ 👋 Introduction Market Position Segment: Mid-size Luxury SUV Competitive Analysis Key Competitors: Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, Lexus RX, BMW X5 Key Features Vehicle Strengths: Off-road capability (Quadra-Drive II), Luxurious interior appointments, Powerful V8 engine options, Comfortable ride 📋 Manual Details Coverage Areas Years Covered: 2002, 2003, 2004 Page Count Estimated Page Count: 2000+ Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (4.0L I6, 4.7L V8, 5.7L HEMI), Transmission (45RFE, NV3550, 545RFE), Drivetrain (4WD systems, differentials, axles) Chassis: Suspension (Front/Rear), Steering, Brakes (ABS, Driveline-specific), Exhaust System Electrical: Power Distribution, Lighting, Ignition, Starting, Charging, Body Control Modules (BCM), Powertrain Control Modules (PCM), Diagnostics (OBD-II) Body: Interior Trim, Exterior Body Panels, Glass, Seats, HVAC System, Restraints (Airbags) Instrumentation: Dashboard gauges, warning lights, and their functions and troubleshooting. Comfort Features: Power windows, locks, seats, mirrors, sunroof operation and repair. Procedures Included Maintenance: Oil Change, Filter Replacement, Fluid Checks and Changes, Tire Rotation, Spark Plug Replacement, Belt Inspection and Replacement Repair: Engine Overhaul, Transmission Rebuild, Brake System Overhaul, Suspension Component Replacement, Electrical Component Diagnosis and Replacement, HVAC System Repair Diagnostics: Troubleshooting charts, Symptom-based diagnosis, Diagnostic Trouble Code (DTC) interpretation, Wiring diagrams for electrical systems Specification Charts: Torque specifications for all fasteners, clearances for engine and transmission components, fluid capacities. Special Tools: Lists and descriptions of necessary factory special tools for specific repair procedures. Technical Depth Depth: Comprehensive: Covers routine maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures. Wiring Diagrams: Includes detailed electrical schematics for all major systems, crucial for electrical troubleshooting. 📊 Manual Specifications File Format Compatibility: Compatible with all PDF readers on Windows, macOS, Linux, Android, and iOS devices. Print Quality Quality: High-resolution scans, ensuring clear text and legible diagrams. Binding Type Format Type: Digital PDF (not a physical book) Paper Type Printability: Printable for individual page or section printing. ⚙️ Engine Specifications Primary Engine Engine 1: 4.0L I6 (PowerTech) Engine 1 Displacement: 3952 cc Engine 1 Hp: 195 hp @ 4400 rpm Engine 1 Torque: 230 lb-ft @ 3200 rpm Optional Engine Engine 2: 4.7L V8 (PowerTech) Engine 2 Displacement: 4701 cc Engine 2 Hp: 235 hp @ 4800 rpm (2002-2003), 260 hp @ 4800 rpm (2004) Engine 2 Torque: 325 lb-ft @ 3200 rpm (2002-2003), 325 lb-ft @ 3200 rpm (2004) Engine 3: 5.7L HEMI V8 (Late 2005+ models, but manual might reference commonality or prep) Performance Fuel Induction: Multi-Port Fuel Injection (MPI) Fuel System Fuel Type: Unleaded Gasoline (87 octane recommended, higher for optimal performance) 🔧 Transmission Standard Transmission 1: 4-Speed Automatic (45RFE) Optional Transmission 2: 5-Speed Manual (NV3550 - Less Common) Features Transfer Case Options: Selec-Trac (2WD/4WD Part-Time), Quadra-Trac II (4WD Full-Time), Quadra-Drive II (4WD Full-Time with Electronic Limited Slip Differentials) Fluid Specifications Automatic Transmission Fluid Type: ATF+4 (Mopar) 📐 Dimensions Exterior Wheelbase: 116.1 inches Length: 189.7 inches Width: 73.3 inches Height: 72.1 inches Weights Curb Weight Base: 4400-4800 lbs (approximate, varies by configuration) Towing Capacity: Up to 6,500 lbs (with appropriate equipment) 🛡️ Safety Features Ratings NHTSA Frontal Impact Driver: ★★★★★ (5-Star) NHTSA Frontal Impact Passenger: ★★★★★ (5-Star) IIHS Frontal Offset Driver: Good Active Features ABS: Standard (4-wheel disc brakes) Traction Control: Available (TCS) Passive Features Airbags: Driver and front passenger airbags, Optional side curtain airbags Seatbelts: 3-point front and rear seatbelts 💡 Technology Features Infotainment Audio System Options: AM/FM Stereo with CD Player, Premium Infinity Sound System (optional) Navigation: Optional factory navigation system available on higher trims. Driver Assistance Cruise Control: Standard Parking Sensors: Optional rear parking assist system. Connectivity Power Outlets: 12V power outlets in front and rear. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-7,500 miles (depending on oil type and driving conditions, refer to manual) Transmission Fluid Change Interval: Every 30,000-100,000 miles (depending on usage, refer to manual) Coolant Flush Interval: Every 30,000-100,000 miles (refer to manual for specific coolant type) Fluid Specifications Engine Oil Specification: SAE 5W-30 (preferred for most conditions), SAE 10W-30 (refer to manual for specific engine) Coolant Specification: Mopar Antifreeze/Coolant (OAT - Organic Acid Technology, typically HOAT orange) Brake Fluid Specification: DOT 3 or DOT 4 Known Issues Common Problems: Headliner sagging, Heater core leaks, Radiator leaks, Transmission solenoid issues (45RFE/545RFE), Differential pinion seal leaks, Front axle seal leaks, Catalytic converter failure, EVAP system leaks 📚 Vehicle History Brand Heritage Jeep Legacy: Jeep has a long-standing reputation for robust off-road vehicles and capable SUVs since World War II. Model Evolution Wj Generation Introduction: The WJ generation replaced the ZJ Grand Cherokee for the 1999 model year, introducing a more refined and upscale experience. The 2002-2004 models represent the later part of this generation, with minor updates. Production Manufacturing Locations:...