🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2004 Platform Code: TJ 👋 Introduction Market Position Segment: Compact SUV / Off-Road Vehicle Key Selling Point: Renowned off-road capability, iconic design, and robust build. Competitive Analysis Direct Competitors: Toyota Tacoma (as a truck-based SUV alternative), Toyota 4Runner (older generations), Nissan Xterra, Suzuki Vitara (older generations). Key Features Off Road Features: Solid front and rear axles, available Dana 44 rear axle, Command-Trac NV231 transfer case (or optional NV241OR Rock-Trac on Rubicon), locking differentials (Rubicon). Body Styles: Two-door (standard), four-door (Unlimited variant launched in 2004 for some markets). 📋 Manual Details Coverage Areas Vehicle Systems Covered: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Body, Chassis, Wiring Diagrams, Diagnostics, Maintenance, Specifications Page Count Estimated Pages: Approximately 1500-2500 (typical for full factory service manuals) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Diagnostics: Comprehensive diagnostic procedures, troubleshooting charts, and specifications for all engine variants. Powertrain Repair: Detailed repair instructions for engine, transmission (manual and automatic), transfer case, and axles. Suspension Steering: Repair and adjustment procedures for front and rear suspension, steering components, and alignment specifications. Brake System: Service and repair of brake calipers, rotors, lines, master cylinder, and ABS system (if equipped). Electrical Diagnostics: Extensive wiring diagrams, component locations, troubleshooting guides for all electrical systems, including lighting, ignition, and accessories. HVAC System: Service and repair of air conditioning, heating, and ventilation systems. Body Chassis: Procedures for body panel repair, interior trim, and chassis components. Procedures Included Maintenance Schedules: Detailed recommended maintenance schedules based on mileage and time intervals. Troubleshooting Guides: Step-by-step troubleshooting guides for common problems and diagnostic codes. Component Rebuild: Complete rebuild procedures for major components such as engines and transmissions. Torque Specifications: All necessary torque specifications for fasteners across all vehicle systems. Diagnostic Trouble Codes: Explanation and resolution steps for OBD-II Diagnostic Trouble Codes (DTCs). Technical Depth Depth: Comprehensive, covering everything from routine maintenance to full rebuilds and advanced diagnostics. 📊 Manual Specifications File Format Quality: High-resolution, searchable PDF with clear text and images. Print Capability: Printable for offline use. Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code Standard: 2.4L I4 (3 Prong Coil Pack, OBDI/II Hybrid Control Module) Engine Displacement Standard: 2400 cc Engine Type Standard: Inline 4-cylinder, SOHC Horsepower Standard: 122 hp @ 5200 rpm Torque Standard: 142 lb-ft @ 3800 rpm Optional Engine Engine Code Optional: 4.0L I6 (Sequential MPI) Engine Displacement Optional: 3960 cc Engine Type Optional: Inline 6-cylinder, OHV, "PowerTech" Horsepower Optional: 190 hp @ 4600 rpm Torque Optional: 235 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) 🔧 Transmission Standard Transmission Type Standard: 5-Speed Manual (AX-5 or NV3550) Optional Transmission Type Optional: 4-Speed Automatic (42RLE) Features Transfer Case: NV231 Command-Trac (2WD High, 4WD High, Neutral, 4WD Low) or NV241OR Rock-Trac (Rubicon models) with 4:1 low-range ratio. 📐 Dimensions Exterior Wheelbase Standard: 93.4 inches (2372 mm) Length Standard: 151.3 inches (3843 mm) Width Standard: 66.5 inches (1689 mm) Height Standard: 72.5 inches (1841 mm) (with soft top) Weights Curb Weight Approx Start: 3325 lbs (1508 kg) Curb Weight Approx End: 3700 lbs (1678 kg) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 3-star (as of initial testing, likely dependent on specific configuration) Active Features Braking System: Front: Ventilated Discs, Rear: Solid Discs. Optional ABS. Passive Features Airbags: Standard driver and passenger front airbags. Roll Cage: Integral roll cage for enhanced occupant protection. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player (single disc or optional CD/Cassette changer), available Infinity premium sound system with subwoofer. Driver Assistance ABS: Optional Anti-lock Braking System (ABS) on rear wheels only for 2004, four-wheel ABS not available. Connectivity Phone Integration: No integrated Bluetooth or smartphone connectivity from factory. 🔧 Maintenance Service Intervals Oil Change Recommendation: Every 3,000-7,500 miles or 6-12 months, depending on driving conditions and oil type used (consult manual for specific engine/oil). Engine Coolant Flush: Every 30,000 miles or 2 years. Spark Plug Replacement 4.0L: 100,000 miles (typically use Champion copper plugs, OE spec). Transmission Fluid Change Auto: Every 30,000-60,000 miles (ATF+4 recommended). Fluid Specifications Engine Oil 4.0L: API SG or higher, SAE 10W-30. Engine Oil 2.4L: API SG or higher, SAE 5W-30. Coolant: Mopar Antifreeze/Coolant (HOAT) - Orange, 50/50 mix with distilled water. Transmission Fluid Auto: Mopar ATF+4 (or equivalent). Transfer Case Fluid: Mopar NV241 Transfer Case Fluid (or equivalent). Known Issues Common Wear Items: Ball joints, tie rod ends, track bar bushings, water pump (especially on 4.0L), clutch components (manual transmission), exhaust manifold cracks (4.0L). Common Leaks: Valve cover gasket, oil pan gasket, rear main seal (especially on high mileage 4.0L). 📚 Vehicle History Brand Heritage Jeep Legacy: Direct lineage from...