🏷️ Basic Information Identification Make: Jeep Model: Grand Cherokee Generation: WJ Production Years Covered: 1999, 2000, 2001, 2002, 2003, 2004 Codes Chassis Code: WJ 👋 Introduction Market Position Vehicle Segment: Mid-size Luxury SUV / Off-Road Focused SUV Competitive Analysis Key Competitors: Ford Explorer, Chevrolet TrailBlazer/Envoy, Toyota 4Runner, Nissan Pathfinder, Land Rover Discovery Key Features Vehicle Strengths: Renowned off-road capability (Quadra-Drive II system), powerful engine options, comfortable ride, spacious interior, solid build quality. 📋 Manual Details Coverage Areas Systems: Engine, Drivetrain, Transmission, Brakes, Suspension, Steering, HVAC, Electrical, Body, Interior, Diagnostics, Emissions Procedures: Routine Maintenance, Troubleshooting, Repair, Overhaul, Component Replacement, Electrical Schematics, Diagnostic Trouble Codes (DTCs) Page Count Estimated Pages: 3000+ Manual Type Type: Complete Service & Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: 4.0L I6 PowerTech, 4.7L V8 PowerTech engines, NV231HD, NV242, NV247, NV249 transfer cases, 42RE, 44RE, 45RFE, 545RFE automatic transmissions Chassis: Front & Rear Axles (Dana 30, Dana 44A), Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Traction Control System (TCS), Power Steering System, Independent Front Suspension (IFS) with Quadra-Coil design, Solid Rear Axle Electrical: Starting & Charging System, Ignition System, Fuel System Control, Body Control Module (BCM), Powertrain Control Module (PCM), Integrated Power Module (IPM), Lighting (Interior & Exterior), Instrumentation, Audio Systems, Power Accessories (Windows, Locks, Mirrors), Climate Control System (HVAC), Safety Systems (Airbags, Seatbelt Pretensioners) Procedures Included Engine Repair: Engine assembly/disassembly, cylinder head repair, piston/ring replacement, crankshaft/bearing service, camshaft installation, timing component replacement, cooling system service, lubrication system service Transmission Drivetrain: Automatic transmission fluid (ATF) changes, filter replacement, transmission removal/installation, transfer case service, axle differential service, CV joint replacement Brakes Suspension Steering: Brake pad/rotor replacement, caliper service, brake bleeding, suspension component inspection/replacement (shocks, struts, control arms), steering linkage service, wheel alignment procedures Electrical Diagnostics: Wiring diagrams, component testing, diagnostic trouble code (DTC) retrieval and interpretation, circuit troubleshooting, sensor diagnosis, module programming basics Technical Depth Scope: Comprehensive, covering everything from basic maintenance to complete engine and transmission overhauls, including detailed diagnostic procedures and electrical schematics for all factory systems. 📊 Manual Specifications File Format Quality: High-resolution, searchable PDF with selectable text for easy navigation and printing. Print Quality Readability: Clear, legible text and diagrams, suitable for professional use. Binding Type Physical Format Description: N/A (Digital PDF format) Paper Type Physical Format Description: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine 1 Variant: 4.0L (3956cc) OHV 12-valve I6 PowerTech Engine 1 Horsepower: 190 hp @ 4400 rpm Engine 1 Torque: 235 lb-ft @ 3200 rpm Optional Engine Engine 2 Variant: 4.7L (4701cc) OHV 16-valve V8 PowerTech Engine 2 Horsepower: 235 hp @ 4700 rpm (1999-2001), 260 hp @ 4700 rpm (2002-2004) Engine 2 Torque: 295 lb-ft @ 3200 rpm (1999-2001), 325 lb-ft @ 3400 rpm (2002-2004) Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Cooling System Coolant Type: Chrysler HOAT (Hybrid Organic Acid Technology) - typically pink 🔧 Transmission Standard Transmission Transmission Type: 4-speed Automatic (42RE/44RE for 4.0L, 45RFE for 4.7L) Optional Transmission Transmission Type: 5-speed Automatic (545RFE for 4.7L - introduced for 2002 model year) Features Transfer Cases: NV231HD (Command-Trac part-time), NV242 (Selec-Trac full-time), NV247 (Quadra-Trac II), NV249 (Quadra-Trac full-time, less common) Fluid Specifications 42Re/44Re Atf: ATF+4 (MS-9602) 45Rfe/545Rfe Atf: ATF+4 (MS-9602) 📐 Dimensions Exterior Wheelbase: 116.7 inches (2964 mm) Length: 184.6 inches (4689 mm) Width: 73.5 inches (1867 mm) Height: 66.1 inches (1679 mm) Weights Curb Weight Min: 4400 lbs (approx. for 4.0L models) Curb Weight Max: 4700 lbs (approx. for 4.7L V8 models) Towing Max Towing Capacity: Up to 6,500 lbs (with proper towing package and engine) Wheels Tires Wheel Bolt Pattern: 5x5 inches (5x127 mm) Standard Tire Size: P235/65R17 🛡️ Safety Features Ratings NHTSA Front Driver Side Impact: 5-star (for most years) NHTSA Front Passenger Side Impact: 5-star (for most years) IIHS Front Offset Crash Test: Acceptable Active Features Traction Control: Standard on most models, some with Electronic Traction System (ETS) or Traction Control System (TCS) ABS: Standard Anti-lock Braking System (ABS) Passive Features Airbags: Driver and Passenger front airbags, optional side-impact airbags Seatbelts: Three-point seatbelts with pretensioners 💡 Technology Features Infotainment Audio System Options: Base AM/FM cassette/CD, optional Infinity Gold premium audio system with subwoofer. Navigation: Optional factory navigation system available on higher trims. Driver Assistance Cruise Control: Standard Parking Sensors: Optional rear parking assist system available on later models. Connectivity Power Outlets: 12V auxiliary power outlets 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 to 7,500 miles (3,000 miles under severe driving conditions) Engine Oil Filter Part Number: Commonly Mopar MO-090 or equivalent Wix/Fram/Purolator part numbers Transmission Fluid Service: Every 30,000 to 60,000 miles depending on driving conditions (ATF+4 recommended) Coolant Flush Interval: Every 30,000 miles or 2 years (for HOAT coolant) Fluid Specifications Engine Oil Capacity 4.0L: 5.0 US quarts (4.7 L) with filter Engine Oil Capacity 4.7L: 6.0 US...