🏷️ Basic Information Identification Make: Hummer Model: H1 Model Variant: DMAX Year: 2006 Codes Platform: Humvee (HMMWV) derived platform 👋 Introduction Market Position Segment: Ultra-heavy duty, off-road, military-derived civilian vehicle. Competitive Analysis Niche: Unmatched in extreme off-road capability and ruggedness within the civilian market. Key Features Ownership Benefit: Empowers owners to perform extensive maintenance and repairs, saving significant costs. Ease Of Use: Features easy-to-follow step-by-step instructions and pictures. 📋 Manual Details Coverage Areas All Models Engines Trims Transmissions: Yes Page Count Estimated Page Count: Extensive (specific count not provided, but described as 'complete' and 'A-Z' coverage) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Downloadable Digital File (PDF compatible) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete diagnosis, repair, overhaul, timing, cooling, lubrication, fuel injection (DMAX specific), emissions control. Engine Electrical: Ignition system, starting system, charging system, ECU diagnosis, wiring diagrams, sensor testing. Transmission: Automatic transmission (e.g., Allison) service, repair, troubleshooting, fluid specifications, torque converter. Drivetrain: Transfer case operation and repair, front and rear axles, driveshafts, CV joints, differentials. Brakes: Hydraulic brake system, ABS diagnostics and repair, brake pad and rotor replacement, caliper service. Suspension Steering: Independent front suspension, rear solid axle, shocks, springs, control arms, steering gear, power steering system. Chassis Frame: Frame inspection, repair, body mounting, suspension attachment points. Electrical Body: Lighting systems, power windows, door locks, HVAC controls, interior and exterior trim, instrument panel. HVAC: Air conditioning system diagnosis and repair, heater core service, climate control unit. Fuel System: Fuel tank, fuel pump, fuel lines, fuel filter replacement, diesel injection system specifics for DMAX. Procedures Included Preventive Maintenance: Oil changes, filter replacements, fluid checks, tire rotations, belt inspections. Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting for various systems. Major Repairs: Engine overhaul, transmission rebuild, axle replacement, suspension component replacement. Component Removal Installation: Detailed instructions for removing and installing all major and minor components. Torque Specifications: Crucial torque values for critical fasteners across all systems. Wiring Diagrams: Comprehensive electrical schematics for all vehicle systems. Diagnostic Procedures: Step-by-step guides for diagnosing electronic and mechanical faults. Technical Depth Depth: Comprehensive (from basic maintenance to complete engine and transmission rebuilds, including advanced diagnostics). 📊 Manual Specifications File Format Compatibility: All PC & MAC Computers, tablets, mobile phones. Requires Adobe Reader. Print Quality Printability: Printable by chapter or entire document. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 6.6L Duramax V8 Turbo-Diesel (LLY or LBZ variant typical for 2006 H1) Performance Horsepower: Approx. 300-315 hp (varies by specific LLY/LBZ tune) Torque: Approx. 520-555 lb-ft (varies by specific LLY/LBZ tune) Fuel System Injection System: High-pressure common rail direct injection Cooling System Cooling Type: Liquid-cooled, thermostatically controlled 🔧 Transmission Standard Transmission Type: Allison 1000 5-speed automatic (common for DMAX models) Optional Optional Transmissions: N/A for DMAX models, Allison 1000 was standard Features Transmission Features: Lock-up torque converter, electronic control, robust design for heavy-duty use. 📐 Dimensions Exterior Overall Length: Approx. 202-220 inches (depending on body style - Wagon, SUV, Alpha) Overall Width: Approx. 86.5 inches Overall Height: Approx. 77.4 - 80 inches (depending on body style) Weights Curb Weight: Approx. 6,800 - 7,200 lbs Gross Vehicle Weight Rating Gvwr: Approx. 9,200 - 10,200 lbs Towing Capacity: Approx. 7,000 - 10,000 lbs Off Road Specs Ground Clearance: Approx. 16 inches Approach Angle: Approx. 70 degrees Departure Angle: Approx. 36 degrees Breakover Angle: Approx. 60 degrees 🛡️ Safety Features Ratings NHTSA Ratings: Not typically rated by NHTSA due to its niche, low-volume, and specialized nature. Active Features ABS: Standard Anti-lock Braking System (ABS) Passive Features Airbags: Front airbags for driver and passenger. Seatbelts: Three-point seatbelts with pretensioners. 💡 Technology Features Infotainment Infotainment System: Basic audio system, typically with AM/FM radio and CD player. Navigation was not standard. Driver Assistance Driver Assistance Features: Limited; primary focus on robust mechanical systems. ABS is the main electronic safety aid. Connectivity Connectivity Options: No modern connectivity features like Bluetooth or USB ports as standard. 🔧 Maintenance Service Intervals Engine Oil Change Interval: Refer to manual for specific interval, typically 5,000 - 7,500 miles or annually, depending on usage. Transmission Fluid Change Interval: Refer to manual, typically every 30,000 - 50,000 miles, more frequently under severe use. Fuel Filter Replacement Interval: Refer to manual, typically every 15,000 - 30,000 miles, crucial for diesel engines. Fluid Specifications Engine Oil Spec: API CJ-4 or CK-4 certified, SAE 15W-40 synthetic or synthetic blend diesel engine oil (consult manual for exact spec and viscosity). Transmission Fluid Spec: Dexron III/Mercon or Allison TES 295 approved fluid. Coolant Spec: Ethylene glycol based, long-life (OAT) coolant, typically requiring a 50/50 mix with distilled water. Known Issues Duramax Glow Plugs: Glow plug system reliability can be a concern; manual provides diagnostic procedures. Duramax Egr Cooler: EGR cooler leaks are a known potential issue on these...