🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation: WJ Model Year: 1999 Codes Chassis Code: WJ 👋 Introduction Market Position Vehicle Segment: Mid-size Luxury SUV Key Competitors 1999: Ford Explorer, Chevrolet Blazer, Toyota 4Runner, Land Rover Discovery Competitive Analysis Jeep Strengths: Renowned off-road capability, robust build, comfortable ride Key Features Powertrain Options: Choice of inline-6 and V8 engines, advanced 4WD systems Interior Appointments: Spacious cabin, premium materials, available luxury features 📋 Manual Details Coverage Areas Manual Type: Professional Workshop Service & Repair Manual Language: English Format: Downloadable (implied PDF) Coverage Scope: Comprehensive workshop procedures 📖 Manual Coverage Systems Covered Engine: All engine types and variants for 1999 Grand Cherokee WJ Transmission: Automatic and Manual Transmission systems Drivetrain: Four-wheel drive systems (Quadra-Trac II, Selec-Trac) Suspension: Front and rear suspension, steering components Brakes: Front and rear brake systems, ABS Electrical: Complete electrical system, wiring diagrams, ECU diagnostics HVAC: Heating, Ventilation, and Air Conditioning systems Body: Body panels, interior trim, glass replacement Emissions: Emissions control systems and diagnostics Fuel System: Fuel delivery, injection, and exhaust systems Cooling System: Radiator, water pump, cooling fan, thermostat Exhaust System: Catalytic converter, mufflers, pipes Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), symptom analysis Repair: Step-by-step repair procedures for all major components Rebuilds: Engine and transmission rebuild procedures Specifications: Torque specifications, clearances, tolerances Special Tools: Identification of required special service tools Technical Depth Depth Level: Full dealership-level workshop procedures Detail Level: Detailed step-by-step instructions and exploded diagrams 📊 Manual Specifications File Format Digital Format: PDF (implied, common for downloadable manuals) Searchability: Likely searchable text for quick information retrieval Print Quality Graphic Quality: High-quality diagrams and illustrations Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code 1: 4.0L OHV Inline-6 (AMC 242) Displacement 1: 3956 cc (242 cubic inches) Horsepower 1: 185 hp @ 4500 rpm Torque 1: 220 lb-ft @ 3000 rpm Bore X Stroke 1: 98.5 mm x 86.7 mm Compression Ratio 1: 8.75:1 Block Material 1: Cast Iron Head Material 1: Aluminum Performance Engine Code 2: 4.7L OHV V8 (PowerTech) Displacement 2: 4701 cc (287 cubic inches) Horsepower 2: 220 hp @ 4800 rpm Torque 2: 285 lb-ft @ 3200 rpm Bore X Stroke 2: 93.0 mm x 86.0 mm Compression Ratio 2: 9.0:1 Block Material 2: Aluminum Head Material 2: Aluminum Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 octane recommended) 🔧 Transmission Standard Transmission Type Std: 42RE 4-Speed Automatic (with 4.0L engine) Optional Transmission Type Opt: 45RFE 4-Speed Automatic (with 4.7L V8 engine) Features Overdrive Gears: 4 forward gears, 1 reverse Transmission Fluid Spec 42Re: ATF+3 (Mopar) Transmission Fluid Spec 45Rfe: ATF+4 (Mopar) 📐 Dimensions Exterior Wheelbase: 116.0 inches (2946 mm) Length: 181.5 inches (4610 mm) Width: 71.8 inches (1824 mm) Height: 63.6 inches (1615 mm) Ground Clearance: approx. 8.0 inches (203 mm) Interior Passenger Volume: approx. 104.3 cubic feet Cargo Cargo Volume Behind Rear Seat: approx. 37.2 cubic feet Cargo Volume Max: approx. 73.6 cubic feet Weights Curb Weight Approx: 4100 - 4500 lbs (depending on configuration) Gross Vehicle Weight Rating Gvw R: approx. 5700 - 6000 lbs 🛡️ Safety Features Ratings NHTSA Rollover Rating: Four stars (for 1999 model year) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Optional Traction Control (TC) on some models Passive Features Airbags: Driver and Passenger front airbags Seatbelts: Three-point seatbelts for all occupants 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player, optional Infinity Gold premium audio Navigation: Optional factory navigation system Driver Assistance Cruise Control: Standard cruise control Connectivity Trailer Towing: Available trailer towing package with wiring harness and receiver 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-7,500 miles (depending on oil type and driving conditions) Engine Coolant Flush: Every 30,000 miles or 2 years Transmission Fluid Service: Every 30,000-60,000 miles (ATF+3/ATF+4) Fluid Specifications Engine Oil Spec 4.0L: API SJ, SAE 10W-30 (preferred) or 10W-40 Engine Oil Spec 4.7L: API SJ, SAE 10W-30 (preferred) or 10W-40 Coolant Type: Ethylene Glycol (Mopar OAT or HOAT, typically Mopar Pentafrost G-05 or equivalent) Brake Fluid Type: DOT 3 Power Steering Fluid: ATF+3 or Mopar Power Steering Fluid Known Issues Common Issue 1: Cracked cylinder heads (4.7L V8) Common Issue 2: Water pump leaks Common Issue 3: Front and rear differential leaks Common Issue 4: Transfer case chain stretch/wear Common Issue 5: Interior electrical gremlins (window motors, power locks) Common Issue 6: Heater core leaks 📚 Vehicle History Brand Heritage Jeep Legacy: Long history of rugged, off-road capable vehicles dating back to WWII Model Evolution Wj Introduction: Introduced for the 1999 model year, replacing the ZJ generation. Wj Design: Featured a more aerodynamic and rounded design compared to the ZJ, improved interior comfort and refinement. Production Manufacturing Location: Jefferson...