🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Year: 2004 Chassis Code: WJ 👋 Introduction Market Position Positioning: The Jeep Grand Cherokee WJ (1999-2004) occupied a significant segment of the mid-size luxury SUV market, known for its off-road capability and comfortable on-road manners. Competitive Analysis Competitors: Competed with vehicles like the Ford Explorer, Chevrolet Blazer/TrailBlazer, Toyota 4Runner, Nissan Pathfinder, and Land Rover Discovery. Key Features Features: Offered powerful V8 engine options, sophisticated four-wheel-drive systems (Quadra-Trac II, Quadra-Drive II), luxurious interiors for its time, and strong towing capabilities. Manual Value Purpose: This manual is an indispensable resource for professional technicians and knowledgeable DIY enthusiasts, providing detailed procedures for diagnosis, repair, and maintenance. 📋 Manual Details Coverage Areas Manual Type: Factory Service Manual / Repair Manual Language: English Format: PDF Download Page Count: Extensive (Typical factory manuals for this era are 1500+ pages) Target Audience: Professional technicians and serious DIY mechanics. 📖 Manual Coverage Systems Covered Engine: All engine diagnostics, repair, overhaul, specifications for 4.0L I6 and 4.7L V8 engines Transmission: Service and repair of NV247 Quadra-Trac II, NV245 Quadra-Drive II, and Mercedes-Benz sourced 545RFE/NAG1 automatic transmissions Drivetrain: Front and rear axle service, differential repair, NV247/NV245 transfer case servicing Suspension: Front solid axle (Dana 30), rear axle (Dana 44A), steering system, shocks, springs, bushings, linkages Brakes: Front and rear brake systems (vented discs), ABS, traction control, parking brake Electrical: Complete wiring diagrams, power distribution, lighting, starting and charging systems, ignition system, sensors HVAC: Heating, ventilation, and air conditioning system diagnosis and repair Body And Trim: Interior and exterior body panels, doors, windows, seats, and trim component removal/installation Comfort And Convenience: Power windows, locks, mirrors, seats, sunroof, remote keyless entry Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting guides, error code interpretation Repair: Step-by-step repair procedures for all major components and systems Overhaul: Detailed instructions for engine and transmission rebuilds Diagnosis: Advanced diagnostic procedures using specific tools and techniques Specifications: Torque specifications, clearances, alignment data, component measurements Assembly Disassembly: Detailed instructions for the removal and installation of all major components and sub-assemblies. Special Tools: Identifies and describes the use of any special tools required for specific repair procedures. Technical Depth Depth: Comprehensive, from basic fluid checks to complete engine and transmission overhauls, including electrical system diagnostics and troubleshooting Diagnostics Tools: Coverage of diagnostic trouble codes (DTCs) and their interpretation, often referencing OBD-II scanners. Body Repair: Includes basic body repair information, panel alignment, and trim removal/installation. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text for quick information retrieval Print Quality: High-resolution, suitable for printing individual pages or the entire manual Digital Rights: Instant PDF download for immediate access ⚙️ Engine Specifications Primary Engine Engine 1: 4.0L (242 cu in) I6 Power-Tech Engine 1 Hp: 190 hp @ 4600 rpm (approx.) Engine 1 Torque: 235 lb-ft @ 3200 rpm (approx.) Optional Engine Engine 2: 4.7L (287 cu in) V8 Magnum/High Output Engine 2 Hp: 235 hp @ 4750 rpm (approx.) / 260 hp (HO) @ 5200 rpm (approx.) Engine 2 Torque: 295 lb-ft @ 3250 rpm (approx.) / 325 lb-ft (HO) @ 3500 rpm (approx.) Fuel System Fuel Injection: Sequential Multi-Port Fuel Injection (MPI) Engine Management ECU: NGC (Next Generation Controller) for 4.7L, similar for 4.0L 🔧 Transmission Standard Transmission Type: 4-speed Automatic (42RE for 4.0L, 45RFE/545RFE for 4.7L) Optional Manual Transmission: Not available for the 2004 model year. Features Transfer Case 1: NV247 Quadra-Trac II (full-time, on-demand 4WD) Transfer Case 2: NV245 Quadra-Drive II (full-time, electronic shifting with front/rear electronic LSDs) Fluid Specifications Automatic Transmission Fluid: ATF+4 (Mopar) 📐 Dimensions Exterior Length: 183.7 inches (4666 mm) Width: 73.3 inches (1862 mm) Height: 66.9 inches (1699 mm) Wheelbase: 108.7 inches (2761 mm) Weights Curb Weight: Approx. 4,200 - 4,700 lbs (1905 - 2132 kg) depending on configuration Towing Capacity: Up to 5,000 lbs (2268 kg) when properly equipped 🛡️ Safety Features Ratings NHTSA Front Driver: 5-star (1999-2004) NHTSA Front Passenger: 5-star (1999-2004) IIHS Moderate Overlap Front: Good (2002-2003 model years tested) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Available Traction Control (TCS) Passive Features Airbags: Front dual-stage airbags, optional front side-impact airbags 💡 Technology Features Infotainment Audio System: Available premium audio systems (e.g., Infinity Gold) with CD player, cassette, and AM/FM radio. Navigation: Optional factory navigation system available on higher trims. Driver Assistance Cruise Control: Standard cruise control Connectivity Remote Keyless Entry: Available remote keyless entry system Comfort Features Climate Control: Available dual-zone automatic climate control 🔧 Maintenance Service Intervals Oil Change: Every 3,000 - 7,500 miles (5,000 - 12,000 km) or 6 months, depending on oil type and driving conditions (refer to manual for specifics). Transmission Fluid Change: Every 30,000 - 60,000 miles (48,000 - 96,000 km) or 2-4 years, under severe use or towing, check manual....