🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation: WJ Year: 2002 Engine Type: Diesel Codes Chassis Code: WJ 👋 Introduction Market Position Segment: Mid-size Luxury SUV Target Audience: Jeep owners seeking detailed repair and maintenance information, DIY enthusiasts, professional mechanics. Competitive Analysis Key Competitors: Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, Nissan Pathfinder. Key Features Vehicle Features: Robust off-road capability, comfortable interior, strong towing capacity (diesel variant enhances torque and fuel economy). Manual Value Benefit To Owner: Essential for accurate part ordering, efficient troubleshooting, and performing maintenance and repairs, saving time and money. 📋 Manual Details Coverage Areas Primary Coverage: 2002 Jeep Grand Cherokee WJ Diesel Models Secondary Coverage: Related systems and components applicable to the WJ platform diesel variants. Page Count Estimated Page Count: 1500+ Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (all diesel variants), Transmission (automatic, manual), Drivetrain (transfer case, differentials, axles). Chassis: Suspension (front and rear), Steering, Brakes (ABS, standard). Electrical: Wiring diagrams, lighting, power accessories, ignition system, battery, charging system, starting system. Body And Interior: Body panels, doors, glass, seats, trim, HVAC system, interior components. Diagnostics And Troubleshooting: Diagnostic trouble codes (DTCs), symptom-based troubleshooting, electrical system diagnostics. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, tune-ups. Repair: Component removal, installation, overhaul, and replacement for all major systems. Diagnostics: Step-by-step diagnostic procedures, testing of sensors, actuators, and control modules. Special Tools: Identification and usage of specialized tools required for specific repairs. Technical Depth Depth: Comprehensive coverage from basic maintenance to complete engine and transmission overhauls. Detailed diagnostic procedures and wiring diagrams. 📊 Manual Specifications File Format File Type: Portable Document Format (PDF) Searchability: Searchable text for quick access to information. Print Quality Print Option: Printable pages for easy workshop use. Binding Type Binding: N/A (Digital) Paper Type Paper Quality: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Code: VM Motori "R" series (e.g., R425 / R428) Displacement: 2.5L / 2.8L (common for European/international markets for this era) Configuration: Inline-4 Cylinder, Turbocharged Diesel Performance Horsepower Range: Approximately 115-140 hp (depending on specific engine variant and tuning) Torque Range: Approximately 245-280 lb-ft (depending on specific engine variant and tuning) Fuel System Injection Type: Common Rail Direct Injection (CRDI) Fuel Type: Diesel Fuel Cooling System Coolant Type: Chrysler/Mopar OAT (5/150,000 Mile Formula) - Orange Coolant Capacity: Approx. 10.0 quarts (9.5 liters) 🔧 Transmission Standard Type: 45RFE / 42RLE 4-speed Automatic Transmission Optional Type: NV3500 5-speed Manual Transmission (less common in diesel variants) Features Automatic Features: Electronically controlled, Overdrive gear, Tow/haul mode. Fluid Specification Automatic Fluid Type: ATF+4 (Chrysler MS-9602) Fluid Capacity Automatic Capacity: Approx. 4.5 quarts (4.3 liters) for dry fill, 11.0 quarts (10.4 liters) total capacity. 📐 Dimensions Exterior Length: Approx. 183.0 inches (4650 mm) Width: Approx. 71.5 inches (1816 mm) Height: Approx. 67.1 inches (1704 mm) Wheelbase Wheelbase: Approx. 116.0 inches (2946 mm) Weights Curb Weight: Approx. 4,400 - 4,700 lbs (2000 - 2130 kg), varies by trim and equipment. Towing Capacity: Up to 5,000 - 7,000 lbs (2268 - 3175 kg), depending on configuration and engine. 🛡️ Safety Features Ratings NHTSA Front Impact: 4/5 stars (Driver and Passenger) for 2002 model year. NHTSA Side Impact: 4/5 stars (Front and Rear Passenger) for 2002 model year. Active Features ABS: Standard Anti-lock Braking System (ABS). Traction Control: Optional Traction Control System (TCS). Passive Features Airbags: Driver and front passenger airbags. Optional side curtain airbags may be available on some trims. Seatbelts: Front and rear seat belts with pretensioners for front seats. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player with optional Infinity speaker system. Some models may have available navigation systems. Driver Assistance Cruise Control: Standard cruise control. Connectivity Trailer Tow Prep: Available trailer tow package with wiring harness and receiver hitch. Climate Control HVAC System: Manual or automatic climate control, dual-zone climate control available on higher trims. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles (12,000 km) or 6 months, whichever comes first, using synthetic or synthetic blend oil. Air Filter Replacement: Every 15,000 miles (24,000 km) or annually. Fuel Filter Replacement: Every 30,000 miles (48,000 km) for diesel models. Transmission Fluid Change: Every 30,000 - 60,000 miles (48,000 - 96,000 km), depending on driving conditions. Fluid Specifications Engine Oil Viscosity: 0W-40 or 5W-40 Synthetic Diesel Engine Oil (API CI-4 or newer recommended) Brake Fluid Type: DOT 3 or DOT 4. Power Steering Fluid: ATF+4 (Chrysler MS-9602) or specified power steering fluid. Known Issues Common Diesel Issues: Injectors, glow plug system, turbocharger issues, EGR valve problems, potential for head gasket issues on some VM Motori engines if overheated. Common Wj Issues: Cooling system leaks (radiator, water pump, heater core), transfer case chain wear (NV242, NV247), death wobble (front suspension components), power window...