🏷️ Basic Information

Make:

Hummer

Model:

H2

Year:

2005

Product Name:

2005 Hummer H2 Service and Repair Manual

Product Description:

2005 Hummer H2 Service and Repair Manual - Comprehensive coverage for all models and all repairs A-Z. Vehicle specific information identical to dealership technician manuals.

Product Format:

PDF

👋 Introduction

Segment:

Full-Size Luxury/Performance SUV

Competitors:

Ford Excursion, Cadillac Escalade ESV, Lincoln Navigator (though often positioned against military-derived vehicles for its ruggedness).

Manual Value Proposition:

Provides dealership-level diagnostic and repair information, enabling owners or independent mechanics to perform all necessary service and maintenance tasks with accuracy and efficiency, saving time and money compared to dealership labor rates.

Manual Layout:

One-stop PDF for all repair needs, eliminating the need to search multiple books. Allows printing of specific pages for convenience in the workshop.

📋 Manual Details

Coverage Summary:

All models and all repairs A-Z for the 2005 Hummer H2. Covers maintenance, engine, control systems, mechanical components, fuel service, emissions control, intake, exhaust, cooling, lubrication, ignition, starting, charging, automatic and manual transmissions, transfer case, drive shafts, differentials, axles, suspension, tires, wheels, brake control systems, parking brake, steering columns, power steering, air conditioning, supplemental restraint systems, seat belts, engine immobilizer, cruise control, wipers, washers, door locks, meters, audio/visual systems, horns, windshields, glass, mirrors, instrument panels, seats, engine hoods, doors, exterior, interior, electrical systems, and multiplex/CAN communication.

Estimated Page Count:

Approximately 2500-3500 pages (typical for factory service manuals of this era and vehicle complexity)

Type:

Factory Service Manual / Repair Manual

Language:

English

Digital Format:

PDF (Printable)

Operating Systems:

Windows Vista (32/64-bit), XP, ME, 98, NT, 2000, and macOS compatible.

Software Requirements:

Adobe PDF Reader and Winzip (free online).

📖 Manual Coverage

Mechanical Systems:

Engine, Drivetrain (Transmission, Transfer Case, Axles, Drive Shafts), Suspension, Steering, Brakes, Fuel System, Cooling System, Lubrication System, Exhaust System, Intake System.

Electrical Systems:

Ignition, Starting, Charging, Lighting, Body Control Modules, Powertrain Control Module (PCM), Infotainment, HVAC Controls, Safety Systems (SRS, ABS), Multiplex/CAN Communication.

Chassis Systems:

Frame and body construction, suspension (front and rear), steering, wheels, and tires.

Body And Trim:

Exterior body panels, interior trim, door mechanisms, glass, mirrors, seats, and body hardware.

Maintenance Procedures:

Scheduled maintenance, fluid checks and changes, filter replacements, lubrication, tire rotation.

Diagnostic Procedures:

Troubleshooting guides, diagnostic trouble codes (DTCs), component testing, electrical circuit tracing.

Repair Procedures:

Step-by-step repair instructions for all major and minor components, including engine rebuilds, transmission overhauls, brake system repairs, suspension component replacement, and body panel repairs.

Torque Specifications:

Precise torque values for all fasteners, critical for proper assembly and component longevity.

Troubleshooting Charts:

Systematic troubleshooting flowcharts to identify and resolve common and complex faults.

Depth:

Comprehensive, from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic strategies and electrical schematic interpretation.

Electrical Schematics:

Detailed wiring diagrams for all vehicle systems, including power distribution, lighting, engine control, body control modules, comfort and convenience features, and safety systems.

📊 Manual Specifications

File Type:

PDF

Printability:

High-quality, printable pages with scalable diagrams and illustrations.

Binding:

N/A (Digital PDF - Print as needed)

Paper Recommendation:

N/A (Digital PDF - User to select print media)

⚙️ Engine Specifications

Engine Type:

Vortec 6.0L V8 (LQ4/LQ9)

Horsepower:

325 hp @ 5200 rpm (approx.)

Torque:

370 lb-ft @ 4000 rpm (approx.)

Fuel Delivery:

Sequential Multi-Port Fuel Injection (MPFI)

ECU Type:

GM Engine Control Module (ECM)

Emissions Control:

On-board diagnostics (OBD-II) system, catalytic converters, evaporative emission control system.

Coolant Type:

Dex-Cool Extended Life (GM 12346290 or equivalent orange silicate-free).

Oil Type:

SAE 5W-30 Synthetic Blend (API Certified)

Oil Capacity Quarts:

7.0 Quarts (with filter)

🔧 Transmission

Transmission Type:

4-Speed Automatic (4L62-E)

Transfer Case:

2-Speed Electronic Full-Time 4WD (NV246 with AutoTrac)

Transmission Fluid:

Dexron III-H (GM P/N 88903368 or equivalent)

Gear Ratios 4L62 E:

1st: 3.06, 2nd: 1.63, 3rd: 1.00, 4th: 0.70

Transmission Fluid Capacity Quarts:

Approximately 12-13 Quarts (Total system capacity, Pan drop and filter replacement typically requires 5-6 Quarts).

📐 Dimensions

Overall Length Inches:

207.1

Overall Width Inches:

81.5

Overall Height Inches:

78.5

Wheelbase Inches:

130.0

Ground Clearance Inches:

10.7

Curb Weight Lbs:

6,900 - 7,100 (depending on configuration)

Gross Vehicle Weight Rating Gvwr Lbs:

9,200

Towing Capacity Lbs:

7,300 (standard)

🛡️ Safety Features

NHTSA Rollover Rating:

3 Stars (for 2WD/4WD models)

ABS System:

4-wheel Anti-lock Braking System (ABS)

Traction Control:

Traction Control System (TCS)

Stability Control:

StabiliTrak (optional, depending on trim)

Airbags:

Frontal airbags for driver and front passenger, available side-impact airbags.

Seat Belts:

3-point seat belts with pretensioners for front occupants, 3-point seat belts for rear occupants.

💡 Technology Features

Audio System:

Bose premium audio system with CD player, AM/FM radio, optional navigation system.

Parking Assist:

Rear parking assist system (optional).

Onstar:

Available OnStar telematics system.

Cruise Control:

Standard cruise control system.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles or 6 months, whichever comes first, using synthetic blend or full synthetic oil.

Tire Rotation Interval:

Every 7,500 miles

Transmission Fluid Service:

Inspect every 45,000 miles, service as needed. Recommended replacement every 60,000 - 100,000 miles depending on usage.

Power Steering Fluid:

GM P/N 12345866 (or equivalent Dexron VI ATF)

Transfer Case Fluid:

GM P/N 12378530 (or equivalent Dexron III-H ATF)

Rear Differential Fluid:

API GL-5, SAE 80W-90 (with friction modifier for limited-slip differentials, if equipped).

Front Differential Fluid:

API GL-5, SAE 80W-90.

Brake Fluid:

DOT 3 or DOT 4 (check owner's manual for specific recommendation)

Common Problems:

Fuel pump failures, exhaust manifold leaks, HVAC blower motor issues, torque converter shudder in automatic transmission, potential for ABS sensor failures, early wear on steering components due to vehicle weight.

📚 Vehicle History

Brand Origins:

Hummer began with the AM General HMMWV (Humvee), a military light utility vehicle, which was later adapted for civilian use.

H2 Introduction Year:

2003

H2 Platform:

Built on a modified GM 2500/3500 truck platform (GMT820).

Trim Levels:

Base, Luxury (often with different interior appointments and features).

Manufacturing Plant:

AM General plant in Mishawaka, Indiana.