🏷️ Basic Information Identification Make: Hummer Model: H3 Year: 2007 Codes Platform: GMT360 👋 Introduction Market Position Segment: Mid-size SUV, known for its off-road capability and distinctive Hummer styling. Competitive Analysis Competitors: Jeep Wrangler, Toyota FJ Cruiser, Nissan Xterra, Ford Bronco (early generations), Land Rover LR3. Key Features Off Road Ability: Iconic Hummer off-road prowess, high ground clearance, robust chassis, available locking differentials. Styling: Aggressive, utilitarian design language inherited from larger Hummer models. Durability: Built on a truck-like ladder frame, designed for durability and demanding use. 📋 Manual Details Coverage Areas Systems Covered: Engine, Transmission (Automatic & Manual), Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Body, Interior, Diagnostics, Troubleshooting Page Count Estimated Page Count: Extensive (Software-based, equivalent to thousands of printed pages) Manual Type Type: Online Service & Repair Manual Software (Licensed OE Information) Language Language: English Format Format: Web-based software accessible via browser 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed procedures for engine assembly, disassembly, diagnosis, repair, and overhaul of the 3.7L I5 engine. Engine Electrical: Complete wiring diagrams, component testing, diagnostic trouble codes (DTCs), and repair procedures for engine control systems. Transmission Manual: Repair, overhaul, and diagnostic procedures for the NV1500 5-speed manual transmission. Transmission Automatic: Repair, overhaul, and diagnostic procedures for the 4L60-E 4-speed automatic transmission. Drivetrain: Front and rear axle service, differential repair, CV joints, driveshafts, and transfer case (NVG243C). Suspension: Front torsion bar and rear leaf spring suspension repair, shock absorber replacement, wheel alignment procedures. Steering: Power steering system diagnosis and repair, steering column, steering gear replacement, and alignment. Brakes: Front and rear brake service (disc), ABS system diagnosis, repair, and bleeding procedures. HVAC: Air conditioning system diagnosis, refrigerant handling, heater core replacement, blower motor service. Body: Exterior panel repair, door mechanisms, tailgate, bumpers, and frame service. Interior: Seat removal, dashboard disassembly, trim panel replacement, and interior component service. Procedures Included Preventive Maintenance: Oil changes, filter replacements, fluid checks and top-offs, tire rotations, spark plug replacement. Diagnostics: System-specific troubleshooting guides, diagnostic flowcharts, and use of scan tools for fault detection. Repair And Overhaul: Step-by-step instructions for component removal, installation, and complete rebuilds of major systems. Wiring Diagrams: Comprehensive, system-level electrical wiring diagrams for all vehicle circuits. Torque Specifications: Detailed torque values for all fasteners across all major components. Technical Depth Depth: Factory-level diagnostic and repair procedures, including internal component specifications and tolerances. 📊 Manual Specifications File Format Compatibility: PC, Laptop, Smartphone, Tablet via web browser Print Quality Print Option: Printable sections (user discretion) Binding Type Binding: N/A (Digital Software) Paper Type Paper Type: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 5-Cylinder (I5) Displacement: 3.7 Liters (3700cc) Bore X Stroke: 3.82 x 4.06 inches (97.0 mm x 103.0 mm) Compression Ratio: 9.5:1 Valve Train: DOHC, 4 valves per cylinder, Variable Valve Timing (VVT) Performance Horsepower: 242 hp @ 5600 rpm Torque: 242 lb-ft @ 3600 rpm Fuel System Fuel Delivery: Multi-port Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) Emission Control: Catalytic Converter, Oxygen Sensors, EGR (where applicable) 🔧 Transmission Standard Type: NV1500 5-Speed Manual Optional Type: 4L60-E 4-Speed Automatic Features Transfer Case: NVG243C Full-Time 4WD with Neutral Position. Optional: 2-speed transfer case with low range. Clutch Type: Hydraulic Actuated Single Disc (Manual Transmission) Automatic Transmission Features: Electronic shift control, Tow/Haul mode. 📐 Dimensions Exterior Length: 183.7 inches (4665 mm) Width: 81.2 inches (2062 mm) Height: 77.7 inches (1974 mm) Wheelbase: 113.0 inches (2870 mm) Front Track: 67.5 inches (1715 mm) Rear Track: 67.9 inches (1725 mm) Weights Curb Weight: Approx. 4,700 - 4,900 lbs (2132 - 2223 kg) Gross Vehicle Weight Rating Gvw: Approx. 6,400 lbs (2903 kg) Towing Capacity: Up to 6,000 lbs (2722 kg) Payload Capacity: Approx. 1,700 lbs (771 kg) Max Tongue Weight: 600 lbs (272 kg) 🛡️ Safety Features Ratings NHTSA Rollover Resistance: 3 Stars (with specific tire/wheel configurations) Active Features ABS: Standard 4-wheel Anti-lock Braking System (ABS) Traction Control: StabiliTrak Electronic Stability Control (ESC) available on some models, Traction Control System (TCS) standard. AWD: Standard full-time 4-wheel drive with optional low-range gearing for enhanced off-road capability. Passive Features Airbags: Frontal airbags for driver and front passenger. Optional side-impact airbags. Seatbelts: 3-point seatbelts with pretensioners for all seating positions. Child Seat Anchors: LATCH (Lower Anchors and Top tethers for CHildren) system. 💡 Technology Features Infotainment Audio System: Standard AM/FM/CD player with available premium sound system, subwoofer, and auxiliary input. Navigation: Optional factory-installed navigation system. Driver Assistance Parking Assist: Optional rear parking assist sensors. Connectivity Bluetooth: Optional Bluetooth hands-free phone integration. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months, whichever comes first (synthetic blend recommended). Tire Rotation Interval: Every 7,500 miles. Engine Air Filter Replacement: Inspect every 15,000 miles, replace as needed (more often in dusty conditions). Spark Plug Replacement: Approximately 100,000 miles (using recommended iridium spark plugs). Transmission Fluid...