🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Year: 2003 Chassis Code: WJ (North America), WG (Export/Right-Hand Drive) Engine Type: Diesel 👋 Introduction Market Position Vehicle Class: Mid-size Luxury SUV Competitive Analysis Key Competitors: Toyota 4Runner, Ford Explorer, Chevrolet TrailBlazer, Nissan Pathfinder, Land Rover Discovery Key Features Design: Distinctive Jeep styling, comfortable interior, capable off-road presence Diesel Advantage: Improved fuel economy and torque compared to gasoline counterparts, enhanced towing capability 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Diagnostics, Troubleshooting Page Count Estimated Pages: Approximately 2000+ Manual Type Type: Workshop Manual Language Language: English Format File Format: PDF Searchability: Fully Searchable Bookmarking: Fully Bookmarked Compatibility Operating Systems: Windows, Linux, Mac 📖 Manual Coverage Systems Covered Powertrain: Engine (diesel), Transmission (automatic), Transfer Case Chassis: Suspension (front and rear), Steering, Brakes (front and rear, ABS), Driveline (axles, driveshafts) Electrical: Body Control Module (BCM), Engine Control Module (ECM), Powertrain Control Module (PCM), Lighting, Power Accessories, Audio System, HVAC Controls, Instrument Cluster, SRS (Airbag) System Body: Exterior panels, Doors, Hood, Liftgate, Interior trim, Seats, Glass Procedures Included Maintenance: Oil changes, Filter replacements, Fluid checks and top-offs, Belt inspections and replacement, Spark plug replacement (if applicable to diesel variant, though unlikely), Cooling system service Diagnostics: Troubleshooting guides for common and uncommon issues, DTC (Diagnostic Trouble Code) interpretation and resolution, Wiring diagram analysis Repair: Engine overhaul and component replacement (fuel injection, turbocharger, etc.), Transmission overhaul and component replacement, Suspension and steering component replacement, Brake system component replacement and bleeding, Electrical component repair and replacement, Body panel repair and replacement Technical Data: Torque specifications, Fluid capacities and types, Component part numbers, Exploded views, Repair times (labor guides) Technical Depth Depth: Comprehensive (covering all major systems from basic maintenance to full rebuilds) Special Features Wiring Diagrams: Included, detailed 📊 Manual Specifications File Format Printability: Printable Print Quality Resolution: High-resolution (suitable for professional printing) Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: VM Motori CRD 2.5L (export markets, less common in 2003) or 2.7L Mercedes-Benz CRD (OM612) for some markets Displacement: 2.7 Liters (2700 cc) or 2.5 Liters (2500 cc) depending on market Configuration: Inline 5-cylinder (2.7L) or Inline 4-cylinder (2.5L) Fuel Type: Diesel Aspiration: Turbocharged, Intercooled Performance Horsepower 2 7L: Approx. 163 hp @ 4000 rpm Torque 2 7L: Approx. 295 lb-ft @ 1800 rpm Fuel System Injection System: Common Rail Direct Injection (CRDi) Fluid Specifications Engine Oil: API CJ-4 or ACEA E7/E9 (synthetic recommended), viscosity typically 5W-40 or 10W-40 depending on climate. Consult manual for precise spec. Coolant: Chrysler/Mopar HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant, typically a 50/50 mix with distilled water. Refer to manual for specific Mopar part number. Engine Components Timing Drive: Timing Chain 🔧 Transmission Standard Transmission Type 2 7L: 5-Speed Automatic (Mercedes-Benz 5G-Tronic / NAG1) Optional Transmission Type 2 5L: 4-Speed Automatic (less common with diesel) Features Drivetrain: Part-time 4WD (Selec-Trac NV242 or Quadra-Drive NV247) Fluid Specifications Automatic Transmission Fluid: MB 236.14 or equivalent (e.g., ATF 445T). Refer to manual for specific fluid type and capacity. Transfer Case Fluid Transfer Case Fluid: Typically Mopar ATF+4 or equivalent. Refer to manual for specific type and capacity. 📐 Dimensions Exterior Wheelbase: 110.5 inches (2807 mm) Length: 183.5 inches (4661 mm) Width: 71.9 inches (1826 mm) Height: 67.5 inches (1715 mm) Weights Curb Weight: Approximately 4,500 - 5,000 lbs (2041 - 2268 kg), varies by configuration Towing Capacity: Up to 5,000 lbs (2268 kg) with proper towing package 🛡️ Safety Features Ratings NHTSA Frontal Driver: 5-Star (2003 model year, specific test results may vary) NHTSA Frontal Passenger: 5-Star (2003 model year, specific test results may vary) IIHS Side Impact: Good (for models equipped with side airbags) Active Features ABS: Standard Traction Control: Available (e.g., Electronic Traction Control - ETC) Stability Control: Not typically available on 2003 models Passive Features Airbags: Front airbags, available front side airbags Seatbelts: 3-point seatbelts with pretensioners 💡 Technology Features Infotainment Audio System: Available premium Infinity Gold sound system, CD player, optional navigation system. Driver Assistance Cruise Control: Standard Parking Sensors: Not typically available for 2003 model year. Connectivity Phone Integration: Not available in modern sense; may have provisions for aftermarket hands-free kits. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 7,500 miles (12,000 km) or 6 months, whichever comes first. Refer to manual for specific diesel recommendations. Air Filter Replacement: Inspect every 15,000 miles (24,000 km), replace as needed or every 30,000 miles (48,000 km). Fuel Filter Replacement: Critical for diesel. Intervals vary; consult manual. Typically around 30,000 miles (48,000 km) or as recommended. Transmission Fluid Change: Typically every 60,000 miles (96,000 km) or as per severe service schedule. Refer to manual for exact interval and procedure. Known Issues Common Diesel Issues: Glow plug failure, injector issues, EGR valve clogging, turbocharger problems, potential...