🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2004 Codes Chassis Code: TJ 👋 Introduction Market Position Positioning: The definitive guide for maintaining and repairing the iconic Jeep Wrangler TJ generation Competitive Analysis Advantage: Provides dealer-level information, surpassing generic repair guides in detail and accuracy Key Features Feature 1: Comprehensive system coverage Feature 2: Detailed diagnostic procedures Feature 3: Extensive torque specifications and clearances Feature 4: Essential for owners who perform their own maintenance and repairs 📋 Manual Details Coverage Areas Primary Focus: Service and Repair Target Audience: Owners with basic mechanical skills and independent auto service professionals Page Count Estimated Pages: 1000+ Manual Type Type: Workshop Manual / Service Repair Manual Language Language: English Format Format: Likely PDF (digital) or Printed Book 📖 Manual Coverage Systems Covered Engine: All aspects including diagnostics, overhaul, performance tuning Transmission: Manual and Automatic transmission repair, clutch, drivetrain Suspension: Front and rear suspension, shock absorbers, springs, steering linkage Brakes: Front and rear brake systems, ABS, hydraulic components Electrical: Wiring diagrams, lighting, ignition, charging system, starter, accessories Chassis: Frame, body, doors, hoods, security systems HVAC: Heating, Ventilation, and Air Conditioning system Fuel System: Fuel tank, pump, injectors, emissions control Cooling System: Radiator, water pump, thermostat, coolant specifications Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks Diagnostics: Troubleshooting guides, DTC interpretation, diagnostic procedures Repair: Component removal, installation, adjustment, and overhaul procedures Specifications: Torque specifications, clearances, tolerances, fluid capacities Wiring Diagrams: Detailed electrical circuit diagrams for all systems Technical Depth Depth: Comprehensive, covering dealer-level diagnostics and repairs 📊 Manual Specifications File Format Digital Format: PDF, often searchable and printable Print Quality Print Quality: High-resolution diagrams and clear text (for printed versions) Binding Type Binding Type: Spiral-bound or perfect-bound (for printed versions) Paper Type Paper Type: Durable paper stock suitable for workshop environments (for printed versions) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, Overhead Valve (OHV) Engine Code: AMC 242 (4.0L) Displacement: 3957 cc (242 cubic inches) Bore X Stroke: 3.875 in x 3.562 in (98.4 mm x 90.5 mm) Compression Ratio: 8.75:1 Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Ignition System: Distributorless Ignition System (DIS) with Coil-on-Plug (COP) or distributor-based systems Horsepower Est: 190 hp @ 4600 rpm Torque Est: 235 lb-ft @ 3200 rpm Fuel System Fuel Type: Unleaded gasoline (87 octane recommended) Fuel Tank Capacity: 15 US gallons (57 liters) Emissions Control: Catalytic converter, EGR (Exhaust Gas Recirculation), On-Board Diagnostics II (OBD-II) 🔧 Transmission Standard Transmission Type: 5-Speed Manual Transmission (NV3550) Optional Transmission Type: 4-Speed Automatic Transmission (42RLE) Features Transfer Case: Command-Trac NV241 GII (Part-time, 2-High, 4-High, Neutral, 4-Low) Clutch Type: Dry single plate, hydraulically actuated (for manual) Transmission Fluid Manual: Mopar Manual Transmission Lubricant (or equivalent API GL-3/GL-4 rated fluid) Transmission Fluid Automatic: Mopar ATF+4 (MS-9602) or equivalent 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Length: 158.3 inches (4021 mm) Width: 66.5 inches (1689 mm) Height: 71.5 inches (1816 mm) Ground Clearance: approx. 10 inches (254 mm) Weights Curb Weight Est: 3400 - 3700 lbs (1542 - 1678 kg) Gross Vehicle Weight Rating Est: 4800 - 5000 lbs (2177 - 2268 kg) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 4/5 Stars (calculated) Active Features ABS: Standard Anti-lock Braking System (ABS) on 4-wheel disc brakes Passive Features Airbags: Driver and passenger front airbags Seatbelts: Three-point seat belts with pretensioners 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player with optional Infinity sound system Navigation: Not typically factory-equipped, aftermarket options available Driver Assistance Driver Assistance Features: Limited, primarily ABS. No electronic stability control or advanced driver aids. Connectivity Connectivity Features: Basic, typically with auxiliary inputs for aftermarket devices. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles or 3 months (severe duty) or 6,000 miles or 6 months (normal duty) Engine Oil Filter: Mopar MO-899 or equivalent Air Filter Replacement: Every 15,000 miles or 12 months Spark Plug Replacement: Approximately 30,000 miles (refer to manual for specific type and gap) Coolant Flush: Every 30,000 miles or 24 months Fluid Specifications Engine Oil Type: SAE 10W-30 (API certified) Engine Oil Capacity: 6 US quarts (5.7 liters) with filter Coolant Type: Mopar 5/150 Antifreeze/Coolant (or equivalent HOAT, ethylene glycol based) Brake Fluid Type: DOT 3 Power Steering Fluid: Mopar Power Steering Fluid (or equivalent ATF+4) Known Issues Common Issue 1: Cracking of the exhaust manifold on the 4.0L engine Common Issue 2: Leaking valve cover gasket and oil pan gasket Common Issue 3: Radiator tank cracks or leaks Common Issue 4: Water pump failures Common Issue 5: Chrysler automotive fly-by-wire throttle issues (later models, less common on 2004) 📚 Vehicle History Brand Heritage Heritage: Jeep's legacy of off-road capability and ruggedness, dating back to WWII Model Evolution Tj Generation: The TJ generation (1997-2006) introduced significant improvements over the YJ, including coil spring suspension and a more refined interior Production Manufacturing...