🏷️ Basic Information Identification Make: Jeep Model: Wrangler Model Generation: TJ Year: 2004 Codes Chassis Code: TJ 👋 Introduction Market Position Vehicle Type: Compact Sport Utility Vehicle (SUV) / Off-Road Vehicle Target Audience: Off-road enthusiasts, outdoor adventurers, DIY mechanics, Jeep owners seeking detailed technical information Competitive Analysis Key Competitors 2004: Toyota Tacoma (4-door), Nissan Xterra, Ford Escape, Suzuki Vitara Jeep Wrangler Tj Differentiation: Unmatched off-road capability, iconic design, solid axle front and rear suspension (most models), open-air driving experience Key Features Design Philosophy: Rugged, utilitarian, purpose-built for off-road performance and versatility Body Styles: 2-door convertible (soft top, hard top options) Off Road Systems: Command-Trac (241 transfer case) or Selec-Trac (242 transfer case) part-time 4WD, optional Trac-Lok limited-slip differential, Rubicon model with Rock-Trac (241OR transfer case), locking differentials (front and rear), disconnecting front sway bar 📋 Manual Details Coverage Areas Manual Type: Factory Service Manual / Repair Manual Language: English Page Count Page Count: Approximately 2000+ pages (typical for full factory manual) Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, disassembly, assembly, component inspection, diagnosis Engine Performance: Fuel system, ignition system, emission control systems, cooling system, lubrication system, engine management (PCM) Transmission Manual: AX-5, AX-15, NV3550 overhaul, repair, troubleshooting Transmission Automatic: 42RLE overhaul, repair, troubleshooting Drivetrain: Transfer case (NV231, NV241OR), Dana 30 front axle, Dana 35 rear axle, Dana 44 rear axle (Rubicon models), driveshafts, universal joints Suspension: Front and rear suspension components, springs, shocks, control arms, track bars, bushings, alignment specifications Steering: Steering gear, power steering pump, steering column, tie rods, drag links, steering stabilizer Brakes: Front and rear brake systems (disc and drum), ABS, parking brake, hydraulic system, bleeding procedures Electrical System: Battery, charging system, starting system, lighting, instrument cluster, power windows, locks, mirrors, horns, wipers Body And Frame: Frame inspection, body panel removal/installation, doors, hood, tailgate, convertible top, interior trim, seats, bumpers HVAC: Heating, ventilation, air conditioning system diagnosis and repair, refrigerant handling Diagnostics: OBD-II diagnostics, trouble codes (DTCs), diagnostic procedures, wiring diagrams, connector pinouts Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, tune-ups, lubrication Repair: Component removal, installation, adjustment, replacement, and overhaul Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting, common problems and solutions Specifications: Torque specifications, clearances, fluid capacities, electrical values, diagnostic data Technical Depth Depth Level: Comprehensive (from basic maintenance to complete engine and transmission rebuilds) Detail Level: Step-by-step instructions, exploded views, diagrams, wiring schematics, diagnostic charts 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Searchability: Fully searchable text content Print Quality Print Quality: High-resolution for clear visibility of diagrams and text Printable: Printable pages Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: 4.0L Inline 6 Cylinder (OHV) Engine Displacement: 3952 cc (241 cubic inches) Bore X Stroke: 3.87 x 3.57 inches (98.3 x 90.5 mm) Compression Ratio: 8.8:1 Fuel Type: Unleaded Gasoline Performance Horsepower Net: 190 hp @ 4,600 rpm Torque Net: 235 lb-ft @ 3,200 rpm Fuel System Fuel Delivery: Multi-port Electronic Fuel Injection (MPI) Recommended Fuel Octane: 87 Octane Minimum Cooling System Cooling System Type: Pressurized, Liquid-Cooled Lubrication System Oil Type Specification: API SG or SH, SAE 10W-30 Oil Capacity With Filter: 5.7 quarts (5.4 liters) 🔧 Transmission Standard Transmission Type Standard: 6-speed Manual Transmission (NV3550) Optional Transmission Type Optional: 4-speed Automatic Transmission (42RLE) Features Manual Transmission Fluid: Mopar Manual Transmission Lubricant (MS-9224) or equivalent, SAE 75W-85 GL-4 Automatic Transmission Fluid: Mopar ATF+4 (MS-9602) or equivalent 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Overall Length: 151.3 inches (3843 mm) Overall Width: 66.5 inches (1689 mm) Overall Height: 71.2 inches (1808 mm) (with soft top) Ground Clearance: 10.1 inches (257 mm) Weights Curb Weight: 3,500 - 3,800 lbs (1588 - 1724 kg) (approx. depending on configuration) Gross Vehicle Weight Rating Gvwr: 4,750 - 5,100 lbs (2155 - 2313 kg) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 4/5 Star (Higher center of gravity due to off-road design) Active Features Anti Lock Braking System: Standard on all models (4-wheel disc brakes with ABS) Passive Features Airbags: Driver and front passenger airbags Seat Belts: Three-point front seat belts, lap belts in rear (depending on configuration) 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player with optional premium sound system, Sirius Satellite Radio readiness Navigation: Not available from the factory in 2004 Driver Assistance Cruise Control: Available on most models Connectivity Auxiliary Input: Not standard, aftermarket solutions common 🔧 Maintenance Service Intervals Oil And Filter Change: Every 3,000 - 6,000 miles or 6 months (refer to manual for specific usage conditions) Air Filter Replacement: Every 15,000 - 30,000 miles (inspect more frequently for off-road use) Engine Coolant Flush: Every 30,000 - 60,000 miles or 2-5 years (depending on coolant type) Spark Plug Replacement: Approximately 100,000 miles (for platinum or iridium plugs) Fluid Specifications Brake Fluid Type:...