🏷️ Basic Information Identification Make: Hummer Model: H2 Year: 2004 👋 Introduction Market Position Vehicle Segment: Full-size luxury SUV, Off-road capable Competitive Analysis Competitors 2004: Cadillac Escalade, Lincoln Navigator, Toyota Land Cruiser, Land Rover Discovery Series Key Features Manual Value Proposition: Vehicle-specific, technician-level detail, comprehensive coverage, digital format benefits (print, zoom, storage) Manual Benefit Diy Empowerment: Enables owners to perform maintenance, diagnostics, and repairs themselves, saving time and money 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive Service and Repair Scope: All Models & All Repairs A-Z Manual Type Type: Factory Authorized Service Manual Language Language: English Format Format: PDF Accessibility: Downloadable 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, diagnostics, tuning, cooling system, lubrication Engine Control: ECM diagnostics, fuel injection, ignition system, emission control systems Transmission: Automatic Transmission (4L65-E) service, repair, diagnostics, fluid specifications Drivetrain: Transfer case operation and repair, drive shafts, differentials (front and rear), axle components Suspension Steering: Front and rear suspension components, power steering system, steering column, wheel alignment specifications Brakes: Hydraulic brake system, ABS, traction control, parking brake system, caliper and rotor service Electrical Electronics: Wiring schematics, multiplex communication (CAN bus), starter, charging system, lighting, battery, fuses, relays HVAC: Air conditioning system service, refrigerant handling, climate control diagnostics Restraint Systems: Supplemental Restraint System (SRS), airbag system diagnostics and service, seat belts Body Interior: Body panels, doors, hood, glass, mirrors, interior trim, seats, instrument panel, exterior trim Procedures Included Maintenance: Scheduled maintenance, fluid checks and changes, filter replacements, lubrication points Diagnostics: Troubleshooting guides, symptom-based diagnostics, OBD-II diagnostic trouble codes (DTCs) Repair Rebuild: Step-by-step repair procedures for all major vehicle components and systems Wiring Schematics: Detailed, system-specific wiring diagrams for electrical troubleshooting Technical Depth Depth: Factory-level detail, suitable for professional technicians and advanced DIYers Diagnostic Tools: Implicitly covers use of advanced diagnostic tools and scan equipment Rebuild Procedures: Comprehensive rebuild procedures for major mechanical components (engine, transmission, differentials) 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text within PDF Print Quality Printability: All pages printable, with option to enlarge images Binding Type Digital Binding: Single, integrated PDF document Paper Type Digital Paper Emulation: Emulates high-quality, durable paper for printouts Software Requirements PDF Reader: Adobe PDF Reader (free) Unzipping Utility: Winzip or similar (free) File Quality Image Resolution: High-resolution diagrams and illustrations for clarity ⚙️ Engine Specifications Primary Engine Engine Type: Vortec 6.0L V8 SFI Engine Code: LQ4 (common for H2) Performance Horsepower: 325 hp @ 5200 rpm (approximate) Torque: 370 lb-ft @ 4000 rpm (approximate) Fuel System Fuel Delivery: Multi-port Electronic Fuel Injection (MPI) Fuel Type: Unleaded Gasoline, 87 Octane minimum recommended Cooling System Coolant Type: Dex-Cool (GM's Orange Extended Life) Lubrication Oil Type: SAE 5W-30 Synthetic Blend (per GM spec) Oil Capacity: 7 Quarts (with filter) (approximate) 🔧 Transmission Standard Transmission Type: 4-Speed Automatic Overdrive Transmission Model: 4L65-E Optional Optional Transmission: N/A for 2004 H2 Features Transfer Case: 2-Speed Electronic Transfer Case (with Low Range) Fluid Specifications Transmission Fluid Type: Dexron-III (or equivalent approved fluid) Fluid Capacity Transmission Fluid Capacity: 9.5 Pints (approximate, dry fill) 📐 Dimensions Exterior Length: 203.5 inches Width: 81.2 inches Height: 79.2 inches Weights Curb Weight: 6,600 - 6,900 lbs (depending on configuration) Gross Vehicle Weight Rating Gvwr: 8,600 lbs Towing Capacity: Up to 9,000 lbs (with proper equipment) Payload Capacity: Approximately 1,400 - 1,700 lbs 🛡️ Safety Features Ratings NHTSA Front Driver Side: 5-Star NHTSA Front Passenger Side: 5-Star NHTSA Side Impact Front Passenger: 4-Star NHTSA Side Impact Rear Passenger: 4-Star Active Features Traction Control: Standard ABS: 4-Wheel Anti-lock Braking System (ABS) Stabilitrak: Available/Optional (Electronic Stability Control) Passive Features Airbags: Frontal airbags for driver and passenger Seat Belts: 3-point height-adjustable front seat belts with pretensioners, rear seat belts 💡 Technology Features Infotainment Audio System: Factory premium audio system, often with CD player and optional navigation Driver Assistance Cruise Control: Standard cruise control system Connectivity Onstar: Optional OnStar communication system available Other Features Tire Pressure Monitoring: Available/Optional Tire Pressure Monitoring System (TPMS) 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500 miles or 6 months (whichever comes first), using synthetic oil Tire Rotation: Every 7,500 miles Transmission Fluid Change: Every 50,000 - 100,000 miles, or as per manual recommendation for severe use Coolant Flush Replace: Every 5 years or 100,000 miles for Dex-Cool Fluid Specifications Power Steering Fluid: GM Power Steering Fluid or Dexron-III (check manual for specific type) Brake Fluid: DOT 3 Known Issues Common Complaints: Potential for power steering leaks, occasional fuel pump issues, exhaust manifold leaks, HVAC blower motor resistor failures. Common Repairs Covered Break Job Procedures: Front and rear brake pad and rotor replacement, caliper service 📚 Vehicle History Brand Heritage Brand Origin: Hummer originated from AM General's development of the High Mobility Multipurpose Wheeled Vehicle (HMMWV). Model Evolution H2 Introduction Year: 2003 H2 Platform: Based on a modified GM 900 platform (shared with...