🏷️ Basic Information Identification Make: Jeep Model: Wrangler Year: 2004 Codes Chassis Code: TJ 👋 Introduction Market Position Segment: Compact SUV, Off-Road Vehicle Target Audience: Off-road enthusiasts, Jeep owners seeking DIY maintenance and repair Competitive Analysis Competitors 2004: Toyota Tacoma, Nissan Xterra, Suzuki Vitara, Hummer H2 (though less direct) Key Features Vehicle Off Road Capability: Solid axles, high ground clearance, available locking differentials, robust 4x4 system Design: Iconic Jeep styling, removable doors and top, utilitarian interior Manual Value Proposition Completeness: The most comprehensive service manual available for the 2004 Jeep Wrangler, covering all factory procedures and specifications. 📋 Manual Details Coverage Areas General Coverage: Complete Service and Repair Information Specific Systems: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical, HVAC, Body, Emissions Page Count Estimated Pages: Thousands (digital format allows for extensive detail) Manual Type Type: Factory Authorized Service Manual / Repair Manual Language Language: English Format Format: Downloadable Digital File (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, pistons, connecting rods, crankshaft, lubrication system, cooling system, timing system Engine Electrical: Ignition system, fuel injection system, starting system, charging system, engine control module (ECM) diagnosis and wiring diagrams Transmission Manual: NV1500, NV3550 clutch system, internal components, removal and installation, fluid specifications Transmission Automatic: 42RLE removal and installation, torque converter, internal components, fluid specifications, diagnostic procedures Drivetrain: Transfer case (NV241DHD, NV231), front and rear axles (Dana 30, Dana 35), driveshafts, U-joints, differential service Suspension: Front coil spring suspension, rear multi-link coil spring suspension, shock absorbers, springs, control arms, sway bars Steering: Power steering system, steering gear, steering column, steering linkage, alignment specifications Brakes: Front disc brakes, rear drum brakes, ABS system, hydraulic lines, master cylinder, brake booster, parking brake Electrical System: Battery, charging system, lighting system, instrument cluster, power distribution, fuses, relays, body control module (BCM), wiring diagrams for all circuits HVAC: Air conditioning system, heater system, blower motor, controls, refrigerant charging, component replacement Body: Body panels, doors, hood, tailgate, bumpers, interior trim, seats, convertible top, hardtop service Emissions Control: Evaporative emission control (EVAP) system, exhaust system, catalytic converter, oxygen sensors, diagnostic trouble codes (DTCs) Procedures Included Maintenance Procedures: Oil changes, filter replacements, fluid checks and changes, tune-ups, spark plug replacement, belt inspection and replacement Diagnostic Procedures: Troubleshooting guides for common issues, diagnostic trouble code (DTC) interpretation, electrical circuit testing, component testing Repair Procedures: Step-by-step instructions for component removal, repair, and reinstallation for all major vehicle systems Overhaul Procedures: Complete engine and transmission overhaul instructions, including specifications and tolerances Special Tools: Identification and usage of specific tools required for certain repairs and diagnostics Technical Depth Depth: Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds Detail Level: Includes detailed torque specifications, clearances, diagnostic procedures, and wiring diagrams 📊 Manual Specifications File Format Format: PDF Searchability: Searchable text for quick information retrieval Print Quality Quality: High-resolution scans of original factory manuals, ensuring clear text and diagrams Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: 2.4L (ED1) Engine Type: Inline 4-cylinder Displacement: 2378 cc (145 cu in) Bore X Stroke: 92.0 mm x 88.0 mm (3.62 in x 3.46 in) Compression Ratio: 9.8:1 Horsepower: 147 hp @ 5200 rpm Torque: 190 lb-ft @ 3200 rpm Secondary Engine Engine Code: 4.0L (ERH, ERT) Engine Type: Inline 6-cylinder, OHV, Pushrod Displacement: 3956 cc (242 cu in) Bore X Stroke: 98.5 mm x 86.6 mm (3.88 in x 3.41 in) Compression Ratio: 8.8:1 Horsepower: 190 hp @ 4600 rpm Torque: 235 lb-ft @ 3200 rpm Fuel System Fuel Delivery: Sequential Multi-Port Fuel Injection (MPI) Fuel Type: Unleaded gasoline Fuel Pump Pressure: 39-46 psi (2.7-3.2 bar) Lubrication Oil Capacity 4.0L: 5 US quarts (4.7 liters) with filter Oil Capacity 2.4L: 4.5 US quarts (4.3 liters) with filter Cooling Coolant Capacity: 10.5 US quarts (9.9 liters) for 4.0L, 8.1 US quarts (7.7 liters) for 2.4L 🔧 Transmission Standard Transmission Type 4Cyl: NSG370 (6-speed manual) Type 6Cyl: NV3550 (5-speed manual) Optional Transmission Type 4Cyl Optional: 42RLE (4-speed automatic) Type 6Cyl Optional: 42RLE (4-speed automatic) Features Manual Clutch Fluid: DOT 3 Brake Fluid Automatic Fluid Type: ATF+4 (Mopar) Manual Transmission Fluid: NV3550: Mopar Manual Transmission Lubricant (or equivalent) / NSG370: SAE 75W-90 Synthetic Gear Oil Transfer Case Fluid: NV241DHD/NV231: ATF+4 (Mopar) or equivalent 📐 Dimensions Exterior Wheelbase: 93.4 inches (2372 mm) Length: 158.5 inches (4026 mm) Width Body: 66.5 inches (1689 mm) Height: 70.5 inches (1791 mm) Ground Clearance: approx. 10.2 inches (259 mm) Weights Curb Weight Approx: 3500-3700 lbs (1588-1678 kg) Gross Vehicle Weight Rating Gvwr: 4400-4600 lbs (1996-2087 kg) Cargo Cargo Volume Behind Rear Seat: 30.4 cu ft (0.86 m³) Cargo Volume Max: 62.7 cu ft (1.78 m³) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 3/5 stars (may vary by configuration) Active Features ABS: Available Anti-lock Braking System (ABS) Four...