🏷️ Basic Information Identification Make: Jeep Model: Wrangler Generation: TJ Codes Model Codes: TJ Chassis Codes: TJ 👋 Introduction Market Position Vehicle Segment: Compact SUV, Off-Road Vehicle Jeep Heritage: Continuation of Jeep's legacy in rugged, trail-capable vehicles. Competitive Analysis Key Competitors: Toyota Tacoma (SUV variant), Land Rover Defender (older models), Suzuki Samurai/Vitara. Key Features Off Road Capability: Renowned for its solid axle front suspension (on most TJ models), short wheelbase, and available four-wheel-drive systems (Command-Trac, Selec-Trac). Design: Iconic Jeep design with round headlights, seven-slot grille, and removable doors/top for open-air driving. 📋 Manual Details Coverage Areas Years Covered: 1999, 2000, 2001, 2002, 2003, 2004 Specific Models Covered: Jeep Wrangler (TJ) Page Count Estimated Pages: 1500+ Manual Type Type: Factory Service Repair Manual Function: Diagnostic, Repair, Maintenance, Overhaul Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, engine performance, fuel system, ignition system, lubrication, cooling system, exhaust system, manual transmission, automatic transmission, transfer case, driveline. Chassis: Suspension (front and rear), steering system, braking system (front and rear), wheels and tires. Body: Body construction, exterior trim, interior trim, doors, windows, seats, heating, ventilation, and air conditioning (HVAC). Electrical: Chassis electrical system, body electrical system, instrument cluster, lighting, power windows, power locks, audio systems, diagnostic trouble codes (DTCs). Procedures Included Diagnostics: Symptom-based diagnostics, component testing, wiring diagrams, diagnostic trouble code (DTC) interpretation and resolution. Maintenance: Scheduled maintenance intervals, fluid checks and changes, filter replacements, lubrication points. Repair: Component removal and installation, assembly and disassembly, torque specifications, adjustments. Overhaul: Detailed engine rebuild procedures, transmission overhaul, differential rebuilding, transfer case servicing. Technical Depth Depth: Comprehensive from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic strategies. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Searchability: Likely includes searchable text for quick access to information. Print Quality Reproducibility: Designed for high-quality printing, ensuring legibility of diagrams and text. Binding Type Original Binding: Typically spiral-bound or perfect-bound for professional dealership use. Paper Type Original Paper: Durable, often coated paper designed to withstand shop environments. ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, Overhead Valve (OHV) Engine Displacement: 4.0L (242 cubic inches) Engine Code: AMC 242 Horsepower: 181 hp @ 4,600 rpm Torque: 220 lb-ft @ 3,200 rpm Optional Engine Engine Type: Inline 4-cylinder, Single Overhead Cam (SOHC) Engine Displacement: 2.5L (150 cubic inches) Engine Code: AMC 150 Horsepower: 119 hp @ 4,800 rpm Torque: 145 lb-ft @ 3,200 rpm Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded gasoline Engine Management ECU Type: Chrysler/Jeep proprietary ECU (specific part number varies by year and engine) 🔧 Transmission Standard Type: 5-Speed Manual Transmission Common Models: NV3550 (for 4.0L), AX-5 (for 2.5L) Optional Type: 4-Speed Automatic Transmission Common Models: 42RLE (later models) or earlier Chrysler transmissions. Transfer Case Standard System: NV231 Command-Trac (Part-time, 2-high, 4-high, Neutral, 4-low) Optional System: NV241OR Selec-Trac (Full-time 4WD option available on some models/trims) 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Length: 151.4 inches (3845 mm) Width: 66.5 inches (1689 mm) Height: 71.9 inches (1826 mm) Weights Curb Weight: Approximately 3,400 - 3,700 lbs (1542 - 1678 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 4-star IIHS Side Impact: Acceptable (varies by year and specific test) Active Features ABS: Anti-lock Braking System (ABS) available or standard on rear wheels, optional on front. Traction Control: Limited Slip Differential (LSD) or locking differentials often available as options for enhanced traction. Passive Features Airbags: Driver and passenger front airbags. Seatbelts: Three-point seat belts with pretensioners. 💡 Technology Features Infotainment Audio System: Factory AM/FM/Cassette or CD player, often with optional 6-disc CD changer. Speaker configurations vary (e.g., 2-speaker, 6-speaker sound bar). Navigation: No factory integrated navigation systems available for this generation. Aftermarket solutions are common. Driver Assistance Cruise Control: Available on most models. Power Features: Power windows and locks were optional, becoming more common in later years of the TJ generation. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 miles (5,000 - 8,000 km) or 6 months, depending on driving conditions. Transmission Fluid Change: Manual: Every 30,000 - 60,000 miles (48,000 - 96,000 km). Automatic: Every 30,000 - 50,000 miles (48,000 - 80,000 km) under normal use. Coolant Flush: Every 30,000 miles (48,000 km) or 2 years. Spark Plug Replacement: 4.0L: Approx. 100,000 miles. 2.5L: Approx. 60,000-100,000 miles (check manual for specific recommendations). Fluid Specifications Engine Oil: SAE 10W-30 (API SG or higher quality) for 4.0L. SAE 10W-30 or 10W-40 for 2.5L. Transmission Fluid Manual: NV3550: DOT 3 brake fluid or equivalent. AX-5: Dexron III or equivalent ATF. Transmission Fluid Automatic: Chrysler ATF+4 (or equivalent) Transfer Case Fluid: NV231/NV241OR: Dexron III or equivalent ATF. Coolant: Mopar OAT (Organic Additive Technology) Extended Life Coolant or equivalent (Chrysler's HOAT may be acceptable). Brake Fluid: DOT 3 brake fluid. Known Issues...