🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation: WJ Model Year: 2004 Codes Chassis Code: WJ 👋 Introduction Market Position Vehicle Segment: Mid-size SUV, known for its off-road capabilities and comfortable ride Competitive Analysis Key Competitors: Ford Explorer, Chevrolet TrailBlazer, Toyota 4Runner, Nissan Pathfinder Key Features Powertrain Options: Renowned for its robust inline-6 and powerful V8 engine options, and advanced 4x4 systems Design Philosophy: Blends on-road comfort with traditional Jeep off-road prowess 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive service and repair Secondary Coverage: Body, Chassis, Electrical, Wiring Diagrams Page Count Estimated Page Count: Extensive, likely over 2000 pages (typical for full workshop manuals of this era) Manual Type Manual Classification: Service Shop Manual / Workshop Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: All aspects of engine assembly, disassembly, overhaul, timing, cooling, lubrication Engine Performance: Fuel injection, ignition system, emissions control, diagnostics Transmission Automatic: Service and repair of the 45RFE, 545RFE transmissions, including overhaul, torque converter, and valve body Transmission Manual: If applicable to specific trims, service and repair of manual gearboxes Drivetrain 4Wd: Service and repair of transfer cases (e.g., NV247, NV245, Quadra-Drive II system), front and rear axles, differentials, driveshafts, CV joints Suspension: Front and rear suspension systems, steering components, alignment specifications Brakes: Hydraulic system, ABS, traction control, parking brake, caliper and rotor service Electrical System: Battery, charging system, starting system, lighting, accessories, instrument cluster Body And Chassis: Frame, body panels, doors, glass, interior trim, bumpers, underbody protection HVAC: Heating, ventilation, air conditioning system service, diagnosis, and repair Restraint Systems: Airbag system components, SRS diagnosis, and service precautions Procedures Included Preventive Maintenance: Scheduled maintenance checks, fluid changes, filter replacements Diagnostic Procedures: Troubleshooting guides for common symptoms, diagnostic trouble codes (DTCs) and their interpretation Repair Procedures: Step-by-step instructions for component removal, installation, and repair Overhaul Procedures: Detailed instructions for engine and transmission rebuilds Wiring Diagrams Detail: Comprehensive electrical wiring schematics for all systems, including connector pinouts and component locations Technical Depth Depth Of Coverage: Expert level, suitable for professional technicians and advanced DIY enthusiasts Diagnostic Capabilities: Includes procedures for using diagnostic scan tools (e.g., DRB III), interpreting sensor data, and performing actuator tests Special Tools: Lists and describes necessary special tools for specific repair procedures 📊 Manual Specifications File Format Digital Compatibility: Compatible with Windows, Linux, and Mac operating systems Searchability: Fully bookmarked and searchable PDF for quick navigation and information retrieval Print Quality Readability: High resolution, ensuring clarity of text, diagrams, and illustrations Binding Type Binding Type: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine 1 Type: 4.0L Inline-6 (242 ci) OHV PowerTech Engine 1 Displacement: 3957 cc Engine 1 Horsepower: 190-205 hp @ 4600-4800 rpm (depending on sub-model year and tuning) Engine 1 Torque: 235-255 lb-ft @ 3200-3400 rpm (depending on sub-model year and tuning) Optional Engine Engine 2 Type: 4.7L V8 (287 ci) Magnum SOHC Engine 2 Displacement: 4701 cc Engine 2 Horsepower: 235-260 hp @ 4800-5200 rpm (depending on sub-model year) Engine 2 Torque: 295-325 lb-ft @ 3200-3600 rpm (depending on sub-model year) Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Recommended Fuel: 87 Octane (for 4.0L), 89 Octane recommended for 4.7L V8 for optimal performance 🔧 Transmission Standard Transmission Type Std: 4-speed automatic (45RFE/545RFE) Optional Transmission Type Opt: 5-speed automatic (545RFE - introduced later in the WJ generation, likely standard on some 2004 models) Features Transfer Case Options: Selec-Trac NV242, Quadra-Trac II NV247 (with Vari-Lok), Quadra-Drive II NV247 (with electronic Vari-Lok differentials) Transmission Fluid Spec: ATF+4 (MS-9602) for 45RFE/545RFE transmissions 📐 Dimensions Exterior Wheelbase: 109.4 inches (2779 mm) Length: 181.5 inches (4610 mm) Width: 71.8 inches (1824 mm) Height: 66.7 inches (1694 mm) Weights Curb Weight Est: 4,100 - 4,500 lbs (1860 - 2040 kg), depending on engine and trim Towing Capacity Est: Up to 6,500 lbs (2948 kg) with appropriate towing package Cargo Cargo Volume Behind 2Nd Row: Approx. 37.5 cu ft (1062 L) Cargo Volume Max: Approx. 71.0 cu ft (2010 L) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: Good (for 2004 models) NHTSA Front Impact Passenger: Good (for 2004 models) IIHS Front Offset: Acceptable (typical for vehicles of this era tested by IIHS) Active Features ABS: Standard 4-wheel Anti-lock Braking System (ABS) Traction Control: Available on Quadra-Trac II and Quadra-Drive II equipped models Passive Features Airbags: Front airbags (driver and passenger), optional side curtain airbags (depending on trim and options) 💡 Technology Features Infotainment Infotainment System: Optional Infinity Gold premium audio system, CD player, cassette player (early models), optional navigation system Driver Assistance Cruise Control: Standard Parking Assist: Optional rear park assist sensors Connectivity Connectivity Options: Auxiliary input for audio (later models), SiriusXM Satellite Radio (optional) 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles (5,000-8,000 km)...