🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation: WJ Model Year: 1999 Codes Chassis Code: WJ 👋 Introduction Market Position Vehicle Class: Mid-size luxury SUV. Target Audience: Consumers seeking capability, comfort, and premium features in an SUV. Competitive Analysis Competitors 1999: Ford Explorer, Chevrolet Blazer/TrailBlazer, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery. Key Features Jeep Heritage: Carries the legendary Jeep off-road capability and robust build reputation. Luxury Appointments: WJ generation introduced a more refined interior and premium options compared to predecessors. Powertrain Options: Offered powerful V8 engine options alongside a capable inline-six. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Repair Manual Language: English Format: Digital Download (likely PDF) Page Count: Extensive (typical for WJ Grand Cherokee service manuals, often 1500+ pages) Model Coverage: All 1999 Jeep Grand Cherokee Models 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair, and overhaul for all 1999 engine variants. Transmission: Service and repair for automatic transmissions (e.g., 45RFE, 44RE) and transfer cases. Drivetrain: Front and rear axle service, differential repair, driveshaft maintenance, CV joints. Brakes: Front and rear brake system diagnostics, repair, replacement (pads, rotors, calipers, lines, ABS). Suspension: Front and rear suspension components, steering system, alignment specifications. Electrical: Complete wiring diagrams, component testing, fuse and relay locations, lighting, power accessories. HVAC: Air conditioning system service, heater core, climate control diagnostics. Body: Exterior panel repair, interior trim removal/installation, doors, glass, bumpers. Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), diagnostic procedures. Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, fluid checks and changes, lubrication. Repair: Step-by-step repair instructions for virtually all mechanical and electrical components. Troubleshooting: Systematic identification and resolution of common and uncommon faults. Rebuilds: Complete engine and transmission rebuild procedures, including component specifications and clearances. Specifications: Torque specifications, clearances, fluid capacities, part numbers, and diagnostic parameters. Technical Depth Depth Level: Comprehensive (covers everything from basic checks to full engine/transmission rebuilds). Detail Level: Factory-level detail with clear diagrams and instructions. 📊 Manual Specifications File Format Digital Format: Likely PDF, ensuring searchability and compatibility. Printability: Printable pages for on-the-go reference in a workshop environment. Searchability: Text-based PDF allowing for quick keyword searching of specific procedures or components. Print Quality Image Resolution: High resolution for clear viewing of diagrams, illustrations, and photographs. Binding Type Binding: N/A (Digital Download - typically no physical binding) Paper Type Paper Quality: N/A (Digital Download - not applicable) ⚙️ Engine Specifications Primary Engine Engine 1 Type: 4.0L Inline-6 (PowerTech) Engine 1 Displacement: 242 cubic inches (3956 cc) Engine 1 Horsepower: 185 hp @ 4600 rpm Engine 1 Torque: 220 lb-ft @ 3000 rpm Engine 1 Bore X Stroke: 3.878 in x 3.578 in (98.5 mm x 90.9 mm) Engine 1 Compression Ratio: 8.8:1 Optional Engine Engine 2 Type: 4.7L V8 (PowerTech) Engine 2 Displacement: 285 cubic inches (4650 cc) Engine 2 Horsepower: 220 hp @ 4700 rpm Engine 2 Torque: 300 lb-ft @ 3200 rpm Engine 2 Bore X Stroke: 3.72 in x 3.31 in (94.5 mm x 84 mm) Engine 2 Compression Ratio: 9.0:1 Fuel System Fuel Injection: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded Regular (87 octane recommended, 89 octane for V8 optional) 🔧 Transmission Standard Transmission Type Standard: 45RFE 4-Speed Automatic (with 4.0L I6) Optional Transmission Type Optional: 44RE 4-Speed Automatic (with 4.7L V8 - early models) / 45RFE (later models with V8) Features Transfer Case: Selec-Trac (full-time 4WD) standard; Quadra-Trac II (full-time 4WD with low range) optional. Transmission Fluid: Refer to manual for specific fluid type and capacity (e.g., ATF+4 for 45RFE). 📐 Dimensions Exterior Wheelbase: 116.1 inches (2949 mm) Length: 185.4 inches (4710 mm) Width: 73.9 inches (1877 mm) Height: 67.5 inches (1715 mm) Weights Curb Weight: Approx. 4,400 - 4,700 lbs (2000 - 2130 kg) depending on configuration. Towing Capacity: Up to 5,000 lbs (2268 kg) with proper towing package. 🛡️ Safety Features Ratings NHTSA Frontal Impact: Refer to specific NHTSA reports for 1999 models. Generally good for its era. Active Features ABS: Standard Anti-lock Braking System (ABS) on all wheels. Traction Control: Optional traction control system (likely on higher trims or specific packages). Passive Features Airbags: Driver and front passenger airbags. Seatbelts: 3-point seatbelts with pretensioners for front occupants. 💡 Technology Features Infotainment Audio System: Optional Infinity Gold premium audio system with CD player. Navigation: Optional navigation system (early generation, not as advanced as modern systems). Driver Assistance Cruise Control: Standard cruise control. Parking Sensors: Optional rear parking assist sensors. Connectivity Power Outlets: 12V auxiliary power outlets. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles (4,800-8,000 km) or 6 months, whichever comes first (refer to manual for exact recommendation based on driving conditions). Transmission Fluid Change: Typically every 30,000-60,000 miles (48,000-96,000 km), check manual. Coolant Flush: Every 30,000 miles (48,000 km) or 2 years. Fluid Specifications Engine Oil Spec: API SN or SP, SAE 5W-30 recommended...