🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Year: 1999 Platform Code: WJ Codes Chassis Code: WJ 👋 Introduction Market Position Segment: Mid-size Luxury SUV Target Audience: DIY enthusiasts, independent repair shops, Jeep owners seeking in-depth repair knowledge Competitive Analysis Competitors 1999: Ford Explorer, Chevrolet Blazer, Toyota 4Runner, Land Rover Discovery Key Features Vehicle Highlights: Robust platform, comfortable interior, capable off-road performance Manual Value Proposition: Empowers owners to perform repairs and maintenance with confidence, saving on labor costs and ensuring quality. 📋 Manual Details Coverage Areas Primary Coverage: All service and repair for Jeep Grand Cherokee WJ (1999 model year) Secondary Coverage: Maintenance schedules, troubleshooting guides, diagnostic procedures Page Count Estimated Page Count: 1000+ Manual Type Type: Service and Repair Manual Scope: Comprehensive Language Language: English Format Format: Digital Download (PDF) Searchable: Yes Printable: Yes 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Driveline, Fuel System, Exhaust System Chassis: Suspension, Steering, Brakes, Wheels, Tires Electrical: Wiring Diagrams, Lighting, Instrumentation, Audio System, Power Accessories, Engine Control Module (ECM), Body Control Module (BCM) Body: Body Panels, Doors, Hood, Tailgate, Interior Trim, HVAC (Heating, Ventilation, and Air Conditioning) Procedures Included Maintenance: Oil Changes, Filter Replacements, Fluid Checks and Replenishment, Spark Plug Replacement, Belt Inspection/Replacement Repair: Engine Overhaul, Transmission Rebuild, Brake Component Replacement, Suspension Bushing Replacement, Electrical Component Diagnosis and Repair Troubleshooting: Diagnostic Flowcharts, Symptom-Based Troubleshooting, Common Issue Diagnosis Installation: Accessory Installation, Component Replacement Procedures Technical Depth Depth: Complete overhaul and repair procedures, detailed diagnostic information, wiring schematics Precision: Torque specifications, clearances, diagnostic trouble codes (DTCs) 📊 Manual Specifications File Format Standard: PDF Print Quality Resolution: High-resolution, suitable for professional printing Binding Type Applicable Format: N/A (Digital Download) Paper Type Applicable Format: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine 1: 4.0L Inline 6-cylinder (PowerTech) Engine 1 Code: AMC 242 Engine 1 Displacement: 3956 cc (242 ci) Engine 1 Bore X Stroke: 3.88 x 3.41 inches (98.5 x 86.7 mm) Engine 1 Compression Ratio: 8.8:1 Engine 1 Horsepower: 185 hp @ 4600 rpm Engine 1 Torque: 235 lb-ft @ 3000 rpm Optional Engine Engine 2: 4.7L V8 (PowerTech) Engine 2 Code: EVM Engine 2 Displacement: 4701 cc (287 ci) Engine 2 Bore X Stroke: 3.88 x 3.31 inches (98.5 x 84.1 mm) Engine 2 Compression Ratio: 9.0:1 Engine 2 Horsepower: 220 hp @ 4700 rpm Engine 2 Torque: 285 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Multi-Point Fuel Injection (MPFI) Fuel Type: Unleaded Gasoline (87 octane recommended) 🔧 Transmission Standard Transmission Standard: 42RE 4-Speed Automatic (with 4.0L I6) Optional Transmission Optional: 45RFE 4-Speed Automatic (with 4.7L V8) Features Drivetrain: Part-time Command-Trac 4WD, Full-time Selec-Trac 4WD (Optional) Transfer Case: NV242 (Selec-Trac), NV242J (Command-Trac) 📐 Dimensions Exterior Wheelbase: 116.0 inches (2946 mm) Length: 184.0 inches (4674 mm) Width: 74.0 inches (1880 mm) Height: 67.0 inches (1702 mm) Ground Clearance: 8.4 inches (213 mm) Cargo Cargo Volume Behind Rear Seat: 33.3 cubic feet (943 liters) Cargo Volume Max: 78.0 cubic feet (2209 liters) Weights Curb Weight Est: 4200 - 4700 lbs (1905 - 2132 kg) Towing Capacity Max: 5000 lbs (2268 kg) 🛡️ Safety Features Ratings NHTSA Driver Front Impact: 4/5 Stars (1999 Model Year) NHTSA Passenger Front Impact: 4/5 Stars (1999 Model Year) Active Features ABS: Standard (4-wheel disc brakes) Traction Control: Optional (on some models) Passive Features Airbags Front: Standard Driver and Passenger Frontal Airbags Seatbelts: 3-point seat belts with pretensioners 💡 Technology Features Infotainment Audio System: Optional premium audio systems (e.g., Infinity). Climate Control: Manual or optional dual-zone automatic climate control. Driver Assistance Cruise Control: Standard Keyless Entry: Optional Connectivity Aux Input: Not standard, aftermarket solutions available. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6 months, whichever comes first (depending on oil type and driving conditions). Air Filter Replacement: Every 15,000 - 30,000 miles (24,000 - 48,000 km) or annually. Spark Plug Replacement 4.0L: Approx. 100,000 miles (160,000 km) Spark Plug Replacement 4.7L: Approx. 100,000 miles (160,000 km) Fluid Specifications Engine Oil 4.0L: API SJ, SAE 5W-30 (See manual for viscosity and specification details) Engine Oil 4.7L: API SJ, SAE 5W-30 (See manual for viscosity and specification details) Transmission Fluid: ATF+4 (Mopar) Coolant: Mopar OAT (Orange) Antifreeze/Coolant, 50/50 mix Brake Fluid: DOT 3 Known Issues Common Issues Engine 4.0L: Cracked cylinder heads (less common than earlier generations), oil filter housing leaks. Common Issues Engine 4.7L: Cylinder head gasket issues, valve spring issues, lifter noise. Common Issues Transmission: Solenoid pack failures in 42RE, premature wear on clutch packs. Common Issues Suspension: Worn ball joints, tie rod ends, and control arm bushings. Common Issues Electrical: Body control module (BCM) issues, window regulator failures, HVAC blower motor resistor failure. 📚 Vehicle History Brand Heritage Jeep Legacy: Jeep has a long-standing reputation for off-road capability and ruggedness dating back to WWII. Model Evolution Wj Generation...