🏷️ Basic Information Identification Make: Jeep Model: Wrangler Generation: TJ Year: 2004 Codes Chassis Code: TJ 👋 Introduction Market Position Market Position: Essential diagnostic and repair resource for Jeep Wrangler TJ owners and independent repair facilities, providing dealership-level information for the 2004 model year. Competitive Analysis Competitive Analysis: This is a Factory Service Manual (FSM), offering superior detail and accuracy compared to aftermarket generic repair guides. Its comprehensiveness makes it the gold standard for in-depth vehicle maintenance and repair. Key Features Key Features: Complete FSM, technician-level accuracy, detailed diagrams, extensive coverage of all vehicle systems, official Jeep documentation. 📋 Manual Details Coverage Areas Coverage Areas: Comprehensive coverage for all service and repair procedures, including General Information, Maintenance, Engine Mechanical, Engine Lubrication & Cooling Systems, Engine Fuel & Emission Control System, Accelerator Control, Fuel and Exhaust Systems, Clutch, Manual Transmission, Automatic Transmission, Propeller Shaft & Differential Carrier, Front Axle, Rear Axle, Front Suspension, Rear Suspension, Brake System, Steering System, Restraint System, Body and Trim, Heater, Air Conditioner, Electrical System, and more. Electrical System Detail: Covers lighting, ignition, charging system, power distribution, instrumentation, wipers, horn, and accessory circuits. Manual Type Manual Type: Factory Service Manual (FSM) / Workshop Manual Manual Use Case: Designed for technicians and advanced DIYers, providing the necessary technical information for professional repair and maintenance. Language Language: English Format Format: PDF (within a RAR archive) 📖 Manual Coverage Systems Covered Systems Covered: Engine Mechanical, Engine Lubrication, Engine Cooling, Fuel System, Emission Control, Accelerator Control, Exhaust System, Clutch System, Manual Transmission, Automatic Transmission, Drivetrain (Propeller Shaft, Differential Carrier, Front Axle, Rear Axle), Suspension (Front & Rear), Brakes, Steering, Restraint Systems (Airbags), HVAC (Heater, Air Conditioner), Electrical System, Body & Trim. Wiring Diagrams Coverage: Detailed wiring diagrams included for the electrical system, covering all circuits, components, and their interconnections. Chassis And Body Coverage: Detailed information on body panel removal/installation, frame inspection, and interior trim components. Procedures Included Procedures Included: Maintenance, Service, Diagnosis, Repair, Troubleshooting, Wiring Diagrams, Component Removal/Installation, Adjustments, Specifications. Diagnostic Procedures: Step-by-step diagnostic procedures for identifying and resolving issues across all vehicle systems, including fault codes. Suspension And Steering Repair: Procedures for servicing front and rear suspension components, steering gear, and related systems, including alignment specifications. Technical Depth Technical Depth: Comprehensive; equivalent to dealership technician-level documentation, covering basic to advanced repair and diagnostic procedures. Engine Rebuild Depth: Complete engine disassembly, inspection, repair, and reassembly procedures. Transmission Repair Depth: In-depth repair procedures for both manual and automatic transmissions, including torque specifications and internal component details. 📊 Manual Specifications File Format File Format: RAR archive containing PDF documents. Print Quality Print Quality: High quality PDF, suitable for printing individual pages or sections. Binding Type Binding Type: Digital Download (No physical binding) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Primary Engine: 4.0L Inline 6-Cylinder (242 ci) 'Power Tech' I6 Performance Horsepower 2004 4.0L: 190 hp @ 4,600 rpm Torque 2004 4.0L: 235 lb-ft @ 3,200 rpm Fuel System Fuel System Type: Multi-point Fuel Injection (MPI) Engine Codes Engine Code 4.0L: ERH Cooling System Cooling System Type: Pressurized, liquid-cooled 🔧 Transmission Standard Standard Transmission: 6-speed NV3550 Manual Transmission Optional Optional Transmission: 4-speed 42RLE Automatic Transmission Features Transfer Case: NV241OR 'Off-Road' Command-Trac (Standard) Transfer Case Gear Ratios: 2.72:1 (low range) 📐 Dimensions Exterior Wheelbase Tj: 93.4 inches Length Tj: 160.0 inches Width Tj: 66.5 inches Height Tj: 70.1 inches Weights Curb Weight Tj 4.0L: Approx. 3,310 - 3,460 lbs 🛡️ Safety Features Ratings NHTSA Rollover Rating: 3-Star (for 2004 model year, varies slightly by configuration) Active Features Active Safety Features: Four-wheel disc brakes (standard on 2003+ models), ABS (optional/standard depending on trim) Passive Features Passive Safety Features: Front airbags, Seat belts with pretensioners. 💡 Technology Features Infotainment Infotainment System: Basic AM/FM stereo with CD player, optional Infinity speaker system. Limited connectivity and advanced features compared to modern vehicles. Driver Assistance Driver Assistance Features: None standard; ABS optional. Connectivity Connectivity Options: Limited to aftermarket upgrades for Bluetooth or auxiliary inputs. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 miles or 3 months (severe duty), 5,000 miles or 6 months (normal duty). Fluid Specifications Engine Oil Type: SAE 5W-30 API certified (meeting Chrysler MS-6395 spec recommended) Coolant Type: Chrysler HOAT (Hybrid Organic Acid Technology) Antifreeze/Coolant, Blue (MS-9769) Transmission Fluid Manual: NS 235 (NV3550) or equivalent specification Transmission Fluid Automatic: ATF+4 (MS-9602) or equivalent Differential Fluid Front Rear: SAE 75W-90 GL-5 gear lubricant (with friction modifier for LSD) Known Issues Known Issues: Radiator leaks, AC system issues, catalytic converter failure, clutch wear (manual), death wobble (suspension alignment/component wear), rust (frame, rocker panels, tub). Tire Size Standard Tire Size: P215/75R15, P225/75R16, or P245/75R16 depending on trim and options. Wheel Bolt Pattern Wheel Bolt Pattern: 5x4.5 inch (5x114.3 mm) 📚 Vehicle History Brand Heritage Brand Heritage: Jeep, a division of Chrysler (now Stellantis), has...