🏷️ Basic Information Identification Make: Jeep Model: Wrangler Generation Code: TJ Model Year: 2004 👋 Introduction Market Position Positioning: The Jeep TJ Wrangler is an iconic off-road vehicle, known for its capability and ruggedness. This manual caters to owners and technicians who perform their own maintenance and repairs. Competitive Analysis Competitors: While direct competitors in the compact SUV segment existed, the TJ Wrangler stood apart with its off-road focus, appealing to a niche market. This manual provides the in-depth technical data needed to maintain its unique capabilities. Key Features Manual Value: Provides factory-level repair procedures, diagnostic information, and specifications essential for the 2004 TJ Wrangler. Vehicle Focus: Emphasizes the specific engineering and design elements that make the TJ Wrangler a distinct and capable vehicle. 📋 Manual Details Coverage Areas Engine Coverage: All 2004 TJ Wrangler engine variants Transmission Coverage: All 2004 TJ Wrangler transmission variants (manual and automatic) Chassis Coverage: Frame, suspension, steering, axles, brakes Electrical Coverage: Wiring diagrams, electrical component testing, lighting, accessories Body Coverage: Body panels, interior trim, convertible top, doors, bumpers HVAC Coverage: Heating, ventilation, and air conditioning systems Diagnostics Coverage: Troubleshooting guides, diagnostic trouble codes (DTCs) Page Count Total Pages: 2436 Manual Type Type: Factory Authorized Service Manual Language Language: English Format Format: Print 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, cooling system, exhaust system, engine management Drivetrain: Transfer case, front axle, rear axle, driveshafts, differentials Suspension Steering: Front and rear suspension components, steering gear, power steering system Brakes: Front and rear brake systems (disc/drum configurations), ABS (if equipped), parking brake Wheels Tires: Wheel specifications, tire pressures, rotation Body Structure: Body construction, frame rails, chassis components Comfort Convenience: Seats, interior trim, door mechanisms, power windows, locks, mirrors Lighting Signals: Headlights, taillights, turn signals, interior lighting Restraints: Seat belts, airbags (system description and basic checks) Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, lubrication Component Replacement: Engine components, transmission removal/installation, suspension parts, brake components, exhaust system Troubleshooting Diagnostics: Step-by-step diagnostic procedures for common and complex issues Rebuilds Overhauls: Detailed instructions for engine, transmission, and axle rebuilds Electrical Diagnostics: Testing of sensors, actuators, modules, wiring harness troubleshooting Body Repair: Panel alignment, rust repair guidance, convertible top maintenance HVAC Service: Refrigerant handling, component replacement, system diagnostics Technical Depth Depth: Comprehensive, from basic maintenance to complete factory-level overhauls Diagnostic Tools: Information on using scan tools and specific diagnostic procedures Special Tools: Identification of Chrysler/Jeep specific tools required for certain procedures 📊 Manual Specifications File Format Format: Printed Book Print Quality Quality: High-quality, durable paper stock suitable for shop environments Binding Type Binding: Spiral-bound or perfect-bound for lay-flat usability Paper Type Paper: Heavy-duty, smudge-resistant paper ⚙️ Engine Specifications Primary Engine Engine Name: Chrysler 4.0L Inline-6 'Power Tech' Engine Displacement: 3952 cc (241 cubic inches) Engine Configuration: Inline 6-cylinder, Overhead Valve (OHV) Bore X Stroke: 93.1 mm x 91.9 mm (3.66 in x 3.62 in) Compression Ratio: 8.8:1 Fuel Delivery: Multi-Port Fuel Injection (MPI) Performance Horsepower @ Rpm: 190 hp @ 4,600 rpm Torque @ Rpm: 235 lb-ft @ 3,200 rpm Fuel System Fuel Type: Unleaded Gasoline (87 octane recommended) Fuel Tank Capacity: 19.0 US gallons (71.9 L) Cooling System Coolant Type: Mopar Antifreeze/Coolant (50/50 mix with distilled water) Ignition System Spark Plugs: Champion Copper Plus (e.g., RC12LYC) or equivalent 🔧 Transmission Standard Transmission Type 1: NV3550 5-speed Manual Transmission Optional Transmission Type 2: 42RLE 4-speed Automatic Transmission Features Manual Fluid Type: NV3550: Mopar Manual Transmission Lubricant (or equivalent API GL-3/GL-4 75W-90) Automatic Fluid Type: 42RLE: ATF+4 (Mopar P/N 05013457AA or equivalent) Transfer Case Transfer Case Model: NV241OR 'Rock-Trac' (standard for Rubicon, optional elsewhere) Transfer Case Fluid: Mopar ATF+4 (or equivalent) 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Overall Length: 151.4 inches (3845 mm) Overall Width: 66.5 inches (1689 mm) Overall Height: 73.5 inches (1867 mm) Ground Clearance: 10.1 inches (257 mm) (Rubicon, with specified tires) Weights Curb Weight Est: 3,500 - 4,000 lbs (1588 - 1814 kg) depending on configuration Gross Vehicle Weight Rating Gvw: 4,800 lbs (2177 kg) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: Four-star rating (for 2004 models) Active Features ABS: Available (standard on Rubicon, optional on others) Passive Features Airbags: Driver and passenger front airbags Seat Belts: 3-point front seat belts, 2-point rear seat belts (early models) / 3-point rear (later TJ models) 💡 Technology Features Infotainment Audio System: Optional AM/FM stereo with CD player, cassette player, and premium speaker options. Climate Control: Manual climate control with standard A/C and heating. Driver Assistance Cruise Control: Available Connectivity Connectivity Options: Limited by modern standards; primarily features auxiliary input for aftermarket audio devices. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles or 3 months (severe service) / 5,000 miles or 6 months (normal service) Engine Air Filter Replacement: Every 15,000 miles or 12 months Spark Plug Replacement:...