🏷️ Basic Information Identification Make: HUMMER Model: H1 DMAX Model Year: 2006-2007 Codes Engine Code: Duramax 6.6L V8 Turbo Diesel (LBZ/LLY) 👋 Introduction Market Position Segment: Off-road, Heavy-duty, Military-derived civilian vehicle Competitive Analysis Comparisons: Designed for extreme off-road capability, contrasting with civilian SUVs in terms of utility, durability, and comfort. Key Features Features: Robust construction, powerful diesel engine, advanced drivetrain, exceptional off-road articulation and ground clearance. 📋 Manual Details Coverage Areas Vehicle Scope: 2006-2007 HUMMER H1 DMAX models Page Count Estimated Page Count: High (specific count not provided, but described as comprehensive) Manual Type Type: Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Exhaust System, Transmission, Drivetrain (including axles, differentials, transfer case) Chassis: Suspension (front and rear), Steering, Brakes (hydraulic, ABS), Wheels and Tires Electrical: Battery, Charging System, Starting System, Lighting, Instrumentation, Powertrain Control Module (PCM), Body Control Module (BCM), HVAC Controls, Audio System, Power Accessories Body And Frame: Body panels, doors, windows, interior trim, frame construction, rollover protection structure (ROPS) Procedures Included Maintenance: Scheduled maintenance, fluid changes (oil, coolant, brake fluid, transmission fluid, differential fluid), filter replacements, lubrication Repair: Component diagnosis, troubleshooting, removal, installation, and adjustment for all major systems Troubleshooting: Diagnostic procedures, symptom-based troubleshooting charts, electrical circuit diagrams, fault code interpretation Technical Depth Depth: Comprehensive, suitable for both DIY enthusiasts and professional mechanics, covering from basic maintenance to in-depth repairs and diagnostics. 📊 Manual Specifications File Format Compatibility: Requires Adobe PDF Reader for optimal display of images and graphics. Print Quality Quality: Top quality diagrams and easy-to-read text sections. Binding Type Binding: Digital Download (Not Applicable) Paper Type Paper Type: Digital Download (Not Applicable - printable pages recommended) ⚙️ Engine Specifications Primary Engine Description: 6.6L Duramax V8 Turbo Diesel Engine Codes: LBZ or LLY (depending on specific production date within the 2006-2007 window) Performance Horsepower Lbz: Approx. 360 hp @ 3200 rpm Torque Lbz: Approx. 650 lb-ft @ 1600 rpm Horsepower Lly: Approx. 310 hp @ 3000 rpm Torque Lly: Approx. 590 lb-ft @ 1200 rpm Fuel System Type: Common Rail Direct Injection (CRDI) Fuel Type: Diesel 🔧 Transmission Standard Type: Allison 1000 5-speed Automatic Transmission Optional Type: Not applicable for this specific configuration Features Features: Heavy-duty construction, electronically controlled shifting, deep gear ratios for off-road crawling. 📐 Dimensions Exterior Overall Length: Approx. 201.5 inches (varies slightly by body style) Overall Width: Approx. 87.4 inches Overall Height: Approx. 77.7 inches (varies by body style) Weights Curb Weight: Approx. 6,500 - 7,000 lbs (varies by body style) Gross Vehicle Weight Rating: Approx. 10,000 - 10,500 lbs Towing Capacity: Approx. 7,000 - 10,000 lbs (varies by configuration) 🛡️ Safety Features Ratings NHTSA Rating: Not typically rated by standard consumer safety organizations due to its specialized nature and origins. Active Features ABS: Anti-lock Braking System (ABS) Traction Control: Traction Control System (TCS) Passive Features Airbags: Front airbags (driver and passenger), potentially side airbags depending on specific options. Rollover Protection: Integrated Roll Over Protection Structure (ROPS) in the frame and body design. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with CD player, typically with limited connectivity options (e.g., no Bluetooth or USB as standard). Driver Assistance Features: Limited by design; focus is on off-road capability. ABS and Traction Control are the primary electronic aids. Connectivity Features: Minimal. Some models might have provisions for CB radios or auxiliary communication systems, reflecting its utility focus. 🔧 Maintenance Service Intervals Engine Oil Change: Every 5,000 - 7,500 miles or 6 months, with oil analysis recommended for heavy use. Transmission Fluid Change: Every 30,000 - 50,000 miles for the Allison 1000, depending on operating conditions. Filter replacement recommended at each service. Coolant Flush: Every 50,000 miles or 5 years for the DMAX engine, using approved ELC coolant. Fluid Specifications Engine Oil: API CJ-4 or CK-4, SAE 15W-40 or 5W-40 (synthetic recommended for extreme temperatures). Consult specific manual for exact spec. Transmission Fluid: Dexron III/Mercon or Allison TES-295 approved fluid. Coolant: Heavy-duty Extended Life Coolant (ELC) - typically orange or red color. Pre-diluted 50/50 mix. Brake Fluid: DOT 3 or DOT 4. Known Issues Electrical Gremlins: Corrosion on connectors, intermittent accessory functions due to environmental exposure. Duramax Injectors: Potential for injector issues over high mileage, especially if fuel quality is inconsistent. Air Intake System: Filter maintenance and housing integrity are critical for protecting the diesel engine from dust and debris. 📚 Vehicle History Brand Heritage Origins: Derived from military vehicles (AM General's High Mobility Multipurpose Wheeled Vehicle - HMMWV), emphasizing ruggedness and off-road prowess. Model Evolution H1 Generation: Civilian adaptation of the HMMWV, with later generations incorporating more creature comforts and modern powertrains like the Duramax diesel. Production Manufacturer: AM General (under HUMMER brand, then owned by General Motors) Production Period: HUMMER H1 production spanned from 1992 to 2006. The DMAX variant with the Duramax...