🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2004 Chassis Code: TJ Generation Jeep Wrangler Tj Generation Years: 1997-2006 Codes Vin Code Engine: G (4.0L) 👋 Introduction Market Position Vehicle Segment: Compact Sport Utility Vehicle (SUV) / Off-Road Vehicle Competitive Analysis Key Competitors 2004: Toyota Tacoma, Nissan Xterra, Ford Bronco (discontinued, but legacy competitor), Suzuki Vitara Key Features Wrangler Tj Hallmarks: Iconic boxy styling, removable doors and roof, solid front axle (through 2006), excellent off-road capability Manual Value Proposition Target Audience: DIY mechanics, professional technicians, Jeep enthusiasts 📋 Manual Details Coverage Areas Manual Coverage Scope: Complete Shop Service Repair Page Count Estimated Page Count: 2000+ Manual Type Manual Classification: Workshop Service Manual / Repair Manual Language Manual Language: English Format Manual Format: PDF 📖 Manual Coverage Systems Covered Engine System Coverage: Engine mechanical, cooling, lubrication, fuel, ignition, exhaust, emissions control, engine diagnostics Transmission System Coverage: Manual and Automatic transmission service, clutch, driveline, transfer case Suspension Steering Coverage: Front and rear suspension, steering system, power steering, alignment Brake System Coverage: Hydraulic brake system, ABS, parking brake, brake component replacement Electrical System Coverage: Starting system, charging system, battery, lighting, instrumentation, wiring diagrams, body electrical components, power distribution Body Chassis Coverage: Body structure, doors, hood, tailgate, interior trim, seats, glass, exterior trim, frame HVAC Coverage: Heating, Ventilation, and Air Conditioning (HVAC) system diagnosis and repair Safety Restraint Coverage: Airbag system diagnosis and service, seat belts Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, lubrication, inspection points Repair Procedures: Component removal, installation, adjustment, and replacement for all major systems Troubleshooting Procedures: Diagnostic charts, symptom-based troubleshooting, electrical system diagnostics Diagnostic Procedures: OBD-II diagnostic trouble codes (DTCs), scan tool usage, specific system diagnostics Technical Depth Diagnostic Capability: Advanced, including wiring diagrams and component-level testing Rebuild Depth: Comprehensive, covering engine, transmission, and differential rebuilds Special Tool Requirements: Identifies and describes required special tools for specific repairs 📊 Manual Specifications File Format PDF Quality: High resolution, searchable text Print Quality Print Readability: Optimized for printing, clear diagrams and text Binding Type Binding Method: Not applicable (PDF) Paper Type Paper Quality For Print: Not applicable (PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-Cylinder Engine Displacement: 4.0 Liters (3952 cc) Engine Code: ERH (Global) Engine Configuration: SOHC, 12 Valve Performance Horsepower 2004 4.0L: 190 hp @ 4600 rpm Torque 2004 4.0L: 235 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded Regular (87 Octane Recommended) Engine Maintenance Oil Type Capacity 4.0L: API SG or SH, SAE 10W-30 / 5.0 Quarts (4.7 Liters) Spark Plug Type Gap: Champion Copper Plus (e.g., RC12ECC), 0.035" gap 🔧 Transmission Standard Standard Transmission Type: 6-Speed Manual Transmission Standard Transmission Model: NV3550 Optional Optional Transmission Type: 4-Speed Automatic Transmission Optional Transmission Model: 42RLE Features Transfer Case: New Process (NP) 231 Command-Trac (Part-time, 2WD High, 4WD High, Neutral, 4WD Low) Maintenance Manual Transmission Fluid: Mopar Manual Transmission Lubricant (MS-9224) or equivalent, SAE 75W-90 Synthetic Automatic Transmission Fluid: Chrysler ATF+4 (MS-9602) Transfer Case Fluid: Mopar Automatic Transmission Fluid (MS-9602) or equivalent, ATF+4 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Length: 151.4 inches (3845 mm) Width Body: 66.0 inches (1676 mm) Height: 71.1 inches (1806 mm) Weights Curb Weight Approx: 3,900 - 4,100 lbs (1769 - 1860 kg) depending on configuration Towing Capacity: 2,000 lbs (907 kg) Payload Capacity: 800 - 1000 lbs (363 - 454 kg) depending on configuration Wheels Tires Standard Wheel Size: 15-inch Standard Tire Size: 30x9.50R15 Bolt Pattern: 5x114.3 mm (5x4.5 inches) 🛡️ Safety Features Ratings NHTSA Rollover Rating 2004: 3 out of 5 stars (for 2WD and 4WD models) Active Features ABS Availability: Optional on most trims, standard on Rubicon Passive Features Airbags: Driver and Passenger Frontal Airbags Seat Belts: Three-point front seat belts with pretensioners, two-point rear seat belts 💡 Technology Features Infotainment Audio System Options: Base AM/FM stereo with CD player, optional Infinity sound system Driver Assistance Cruise Control: Available on most trims Connectivity Auxiliary Input: Not standard, typically aftermarket installation 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles or 6 months (whichever comes first), refer to manual for specific conditions Tire Rotation Interval: Every 5,000-7,500 miles Air Filter Replacement: Inspect every 15,000 miles, replace as needed or every 30,000 miles Coolant Flush: Every 30,000 miles or 24 months Fluid Specifications Coolant Type: Chrysler HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant, 50/50 mix with distilled water Brake Fluid Type: DOT 3 Power Steering Fluid Type: Chrysler Power Steering Fluid (MS-5931) Known Issues Common Wrangler Tj Issues: Front axle seal leaks, minor oil leaks (valve cover, oil pan), exhaust manifold cracks (4.0L), clutch wear, interior water leaks (soft top/doors), suspension component wear (ball joints, tie rods) 📚 Vehicle History Brand Heritage Jeep Legacy: Dating back to WWII Willys MB, synonymous with off-road capability and freedom Model Evolution Wrangler Tj Development:...