🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation: WJ Model Year Covered: 1999 Codes Chassis Code: WJ 👋 Introduction Market Position Segment: Mid-size Luxury SUV Key Competitors 1999: Ford Explorer, Toyota 4Runner, Chevrolet Blazer, Land Rover Discovery. Competitive Analysis Differentiation: Jeep's iconic off-road capability, luxurious interior appointments, and powerful V8 engine options. Key Features Platform: WJ platform, a significant redesign from the previous ZJ generation. Body Style: 5-door SUV. Powertrain Options: Available in multiple engine and drivetrain configurations, including 4x4 systems. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Format: Digital (PDF) Page Count Estimated Page Count: 1500+ 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, diagnosis, and repair of all engine variants. Engine Electrical: Ignition system, fuel injection, sensors, actuators, ECU diagnosis, wiring diagrams. Transmission: Service, repair, and overhaul procedures for automatic transmission (e.g., 42RE, 45RFE). Drivetrain: Front and rear differentials, transfer case (e.g., NV242, NV247), driveshafts, U-joints. Suspension: Front and rear suspension components, alignment specifications, shock absorbers, springs. Steering: Power steering system, steering gearbox, tie rods, linkages. Brakes: Hydraulic system, ABS, brake rotors, pads, calipers, parking brake. Electrical Body: Interior and exterior lighting, power windows, locks, mirrors, climate control, audio system. Body And Chassis: Body panel removal/installation, chassis lubrication, structural components. HVAC: Air conditioning, heating, ventilation system diagnosis and repair. Diagnostics: Troubleshooting charts, DTC (Diagnostic Trouble Code) definitions, diagnostic procedures. Procedures Included Maintenance: Regular scheduled maintenance, fluid changes, filter replacements, lubrication. Assembly Disassembly: Step-by-step instructions for component removal and installation. Repair: Detailed repair procedures for all major vehicle systems. Troubleshooting: Systematic diagnostic approaches for identifying and resolving common and complex issues. Wiring Diagrams: Comprehensive electrical wiring schematics for all vehicle systems. Specifications: Torque values, clearances, fluid capacities, and other critical specifications. Technical Depth Depth: Comprehensive, factory-level detail suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission rebuilds. 📊 Manual Specifications File Format Digital Format: PDF Searchable: Yes, text-searchable PDF for quick information retrieval. Printable: Yes, designed for printing specific sections or the entire manual. Print Quality Illustrations: High-resolution diagrams and illustrations. Text Clarity: Clear and legible text. Binding Type Digital Binding: N/A (Digital) Paper Type Digital Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine 1 Displacement: 4.0L (3956cc) Engine 1 Cylinders: Inline-6 (I6) Engine 1 Engine Code: ERH Engine 1 Horsepower: 185 hp @ 4600 rpm Engine 1 Torque: 220 lb-ft @ 3000 rpm Engine 1 Fuel System: Multi-Point Fuel Injection (MPFI) Engine 1 Block Material: Cast Iron Engine 1 Head Material: Aluminum Optional Engine Engine 2 Displacement: 4.7L (4701cc) Engine 2 Cylinders: V8 Engine 2 Engine Code: ECL Engine 2 Horsepower: 235 hp @ 4500 rpm Engine 2 Torque: 295 lb-ft @ 3200 rpm Engine 2 Fuel System: Multi-Point Fuel Injection (MPFI) Engine 2 Block Material: Aluminum Engine 2 Head Material: Aluminum 🔧 Transmission Standard Transmission Type 4.0L: 4-speed Automatic (42RE) Optional Transmission Type 4.7L: 4-speed Automatic (45RFE) Features Transfer Case Options: Selec-Trac (NV242) or Quadra-Drive (NV247) full-time 4WD systems. Transmission Fluid 42Re: ATF+4 (Chrysler MS-9602) Transmission Fluid 45Rfe: ATF+4 (Chrysler MS-9602) 📐 Dimensions Exterior Length: 185.5 in (4712 mm) Width: 73.3 in (1862 mm) Height: 67.8 in (1722 mm) Wheelbase: 109.0 in (2769 mm) Weights Curb Weight 4.0L 4X2: Approx. 4260 lbs (1932 kg) Curb Weight 4.7L 4X4: Approx. 4650 lbs (2109 kg) Towing Capacity: Up to 5000 lbs (2268 kg) with optional tow package. 🛡️ Safety Features Ratings NHTSA Front Driver Side Impact: 5-star (1999 models) NHTSA Front Passenger Side Impact: 5-star (1999 models) Active Features ABS: Standard 4-wheel Anti-lock Braking System (ABS). Traction Control: Available on some models, often integrated with 4WD systems. Passive Features Airbags: Driver and front passenger airbags. Seatbelts: Front and rear seat belts, driver side pretensioner. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player, optional Infinity Gold premium audio system. Navigation: Optional factory navigation system (rare for 1999). Driver Assistance Cruise Control: Standard on most trims. Rear Parking Assist: Optional on some higher trims. Connectivity Telematics: Uconnect system not available in 1999. OnStar integration may have been an early option or dealer add-on. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles (5,000-8,000 km) or 3-6 months, depending on driving conditions (refer to manual for specifics). Engine Coolant Flush: Every 30,000 miles (48,000 km) or 2 years. Transmission Fluid Change: Every 30,000-60,000 miles (48,000-96,000 km), depending on usage (refer to manual). Fluid Specifications Engine Oil 4.0L: SAE 5W-30 (API Certified) Engine Oil 4.7L: SAE 5W-30 (API Certified) Coolant: Mopar OAT (Organic Additive Technology) Antifreeze/Coolant (or equivalent meeting Chrysler MS-9769). Brake Fluid: DOT 3 Known Issues Common Issue 1: Cracked cylinder heads on early 4.7L V8 engines (check for coolant loss and white smoke). Common Issue 2: Water pump leaks and bearing failure on the 4.0L engine. Common Issue 3: Service...