🏷️ Basic Information Identification Make: Hummer Model: H1 Year: 2006 Codes Chassis Code: 4x4 👋 Introduction Market Position Positioning: The Hummer H1 is an iconic, ultra-high-mobility vehicle, known for its extreme off-road capability and robust construction. This manual caters to owners and technicians who require detailed information for maintaining and repairing this specialized vehicle. Competitive Analysis Segment: Extreme Off-Road / Military-derived Civilian Vehicle Key Features Manual Value Proposition: Empowers owners to perform their own repairs, saving significant costs and providing a deeper understanding of their H1. Offers comprehensive, easy-to-follow instructions for all service and repair jobs. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Maintenance Scope: All areas of repair and routine maintenance Page Count Estimated Pages: Likely 1000+ pages (typical for comprehensive WSMs of this nature) Manual Type Type: Workshop Service Manual (WSM) Language Language: English Format File Format: PDF Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader Operating System Compatibility: All Versions of Windows & Mac 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Transfer Case, Drivetrain Components Chassis: Suspension (Front & Rear), Steering, Brakes, Wheels & Tires Electrical: Battery, Charging System, Starting System, Lighting, Gauges, Body Control Module (BCM), Powertrain Control Module (PCM), HVAC Controls, Audio System Body: Exterior Panels, Interior Trim, Doors, Seats, Glass, HVAC System Procedures Included Maintenance: Scheduled Maintenance, Fluid Checks & Changes, Filter Replacements, Lubrication Diagnostics: Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Symptom-Based Diagnosis Repair: Component Removal & Installation, Component Rebuilds, System Diagnosis & Repair Wiring Diagrams: Complete Electrical Schematics for all systems Body And Frame: Body panel alignment, door adjustments, interior trim removal/installation, frame inspection and repair procedures. Wheels Tires And Suspension: Wheel bearing replacement, suspension component replacement (shocks, springs, control arms, ball joints), alignment procedures, CTIS maintenance. Technical Depth Depth: In-depth, professional quality, step-by-step instructions Visual Aids: Includes pictures and illustrations for clarity Troubleshooting Methodology: Comprehensive troubleshooting trees and diagnostic flowcharts for various system malfunctions. 📊 Manual Specifications File Format Printability: Full Printable Print Quality Quality: Professional Quality Binding Type Binding: Digital (PDF) - User Printable Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: 6.6L V8 Duramax Turbo Diesel Engine Code: LLY (Likely variant for 2006 MY) Performance Horsepower Estimated: 300-330 hp (approx.) Torque Estimated: 520-550 lb-ft (approx.) Fuel System Fuel Delivery: Common Rail Direct Injection (CRDI) with Turbocharging and Intercooling Fluid Specifications Engine Oil Type: API CJ-4 or equivalent, SAE 15W-40 or 5W-40 (check manual for exact specification) Engine Oil Capacity: Approximately 10-12 quarts (9.5-11.4 liters) (check manual for exact specification) Cooling System Coolant Type: Dex-Cool (GM Orange) or equivalent OAT (Organic Acid Technology) coolant (check manual for exact specification) 🔧 Transmission Standard Transmission Type: Allison 1000 5-speed automatic Optional Transmission Type: N/A for 2006 H1 civilian models Features Torque Converter Lockup: Yes Fluid Specifications Transmission Fluid Type: Dexron-III H or Dexron-VI (check manual for exact specification) Transmission Fluid Capacity: Approximately 12-14 quarts (11.4-13.3 liters) (check manual for exact specification) 📐 Dimensions Exterior Length: Approx. 184.5 inches (4686 mm) Width: Approx. 86.5 inches (2197 mm) Height: Approx. 77.2 inches (1961 mm) Weights Curb Weight: Approx. 7,500-8,500 lbs (3400-3855 kg) depending on configuration Gross Vehicle Weight Rating: Approx. 9,200-10,500 lbs (4173-4763 kg) depending on configuration Wheel Specifications Bolt Pattern: 8x165.1 mm (8x6.5 inches) Tire Size Standard: 37x12.5R17 (Common, check manual for exact spec) 🛡️ Safety Features Ratings NHTSA Ratings: Not typically rated by NHTSA due to its specialized nature and limited production volume in civilian trim. Active Features Braking System: Four-wheel Anti-lock Braking System (ABS) Passive Features Airbags: Driver and Passenger Airbags (standard on most 2006 models) Frame Construction: Robust body-on-frame construction designed for extreme durability. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player, potentially with premium sound options depending on trim. Driver Assistance Stability Control: Electronic Stability Control (ESC) may be present on later models, but not as advanced as modern systems. Traction Control: All-wheel drive with advanced traction control systems inherent to its design. Connectivity Bluetooth: Unlikely to be standard; aftermarket solutions may exist. 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual; typically 5,000-7,500 miles or 6-12 months for diesel engines, depending on operating conditions. Transmission Fluid Interval: Refer to manual; typically 30,000-60,000 miles, depending on driving conditions. Fluid Specifications Transfer Case Fluid: ATF+4 (MS-9602) or equivalent (check manual for exact specification) Differential Fluid Front Rear: GL-5 75W-90 or 75W-140 synthetic (check manual for exact specification and any limited-slip additives required) Power Steering Fluid: GM Power Steering Fluid (check manual for exact specification) Known Issues Common Complaints: Steering components (tie rods, ball joints) wear due to weight and off-road use. HVAC system reliability can be a concern. Duramax diesel specific issues may arise if maintenance is neglected (e.g., injector issues, turbocharger). Central Tire Inflation System (CTIS) maintenance. Maintenance Focus: Thorough inspection of suspension and steering linkage, regular...