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H2 6.0L V8 Workshop Repair Service & Owners Manual
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🏷️ Basic Information Vehicle Identification Make: HUMMER Model: H2 Model Variant: H2 (SUV and SUT body styles) Production Years Covered: 2003-2009 Engine Covered: 6.0L V8 Petrol FI Manufacturer: General Motors...
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🏷️ Basic Information
Vehicle Identification
Make:
HUMMER
Model:
H2
Model Variant:
H2 (SUV and SUT body styles)
Production Years Covered:
2003-2009
Engine Covered:
6.0L V8 Petrol FI
Manufacturer:
General Motors (GM)
Platform:
GMT820 (full-size truck platform shared with GM full-size SUVs)
Manual Identification
Manual Type:
Workshop Repair Service and Owners Manual
File Format:
PDF inside a ZIP archive
Delivery Method:
Instant download
Binding:
Digital
File Size:
125 MB
👋 Introduction
Market Position
Target Audience:
Do-it-yourself owners and experienced mechanics
Vehicle Class:
Full-size luxury off-road SUV / SUT
Positioning:
Flagship civilian HUMMER model derived from the military HMMWV lineage, marketed as a premium off-road capable vehicle
Key Features
Body-on-Frame Construction:
Full-length boxed ladder frame with body-on-frame design
Engine:
6.0L V8 petrol engine with fuel injection
Drivetrain:
Full-time four-wheel drive with transfer case and locking differentials available
Suspension:
Front independent torsion bar, rear multi-link coil spring with solid axle
Design Highlights:
Distinctive boxy military-inspired styling, large exterior dimensions, high ground clearance
Manual Advantage
Coverage Breadth:
Over 2500 pages spanning engine, drivetrain, electrical, body, HVAC and diagnostics
Illustrations:
Detailed illustrations, pictures and diagrams throughout
Instructions:
Step-by-step procedures based on complete disassembly and reassembly
📋 Manual Details
Scope and Format
Manual Type:
Complete Workshop Repair Service and Owners Manual
Page Count:
More than 2500 pages
File Size:
125 MB
File Format:
PDF (supplied in ZIP archive)
Language:
English
Delivery Method:
Instant download after purchase
Compatibility and Use
Operating Systems:
All Windows versions; all Mac versions
Required PDF Viewer:
Adobe Acrobat Reader (free download available from Adobe)
Required Extraction Tool:
WinZip or WinRAR to extract the ZIP archive
Printing:
All pages are printable for use in the garage or workshop
📖 Manual Coverage
General and Engine Systems
General Information:
Vehicle identification, specifications, maintenance schedules and general procedures
Engine Mechanical:
6.0L V8 disassembly, inspection, overhaul and reassembly procedures
Engine Control:
Engine management, sensors, actuators and diagnostic procedures
Cooling System:
Radiator, water pump, thermostat, hoses and cooling fan service
Engine Electrical:
Alternator, starter, ignition system and charging circuits
Exhaust and Emission:
Exhaust manifolds, catalytic converters, EGR and emission control systems
Fuel System:
Fuel tank, pump, lines, injectors and fuel injection service
Intake System:
Air filter housing, intake ducting and throttle body service
Lubrication:
Oil pump, oil pan, filter and lubrication circuit procedures
Drivetrain and Chassis
Automatic Transmission:
4L60-E / 4L65-E four-speed automatic service, overhaul and diagnostics
Transfer Case:
Full-time four-wheel drive transfer case service and repair
Differential:
Front and rear differential inspection, rebuild and adjustment
Propeller Shaft:
Driveshaft, universal joints and balance procedures
Axle:
Axle shafts, bearings, seals and hub service
Wheel Drive Shaft:
CV shafts and front axle drive components
Brake System:
ABS, hydraulic brakes, parking brake, rotors, calipers and lines
Suspension:
Torsion bar front suspension, rear coil spring solid axle, shocks and steering linkage
Steering Wheel and Column:
Column disassembly, tilt mechanism and airbag clock spring
Power Steering and Assist:
Power steering pump, gear box, lines and assist diagnostics
Wheels and Tires:
Wheel specifications, tire pressures, balancing and mounting
Body, Electrical and Interior
Body Repair:
Panel alignment, body structure, doors, glass and trim procedures
Electrical:
Power distribution, grounds, connectors and general electrical diagnostics
Wiring Diagram:
Full vehicle wiring diagrams for circuits and connectors
HVAC:
Heating, ventilation, air conditioning, blower and control systems
Restraint and Seatbelt:
Airbags, seatbelts, pretensioners and SRS diagnostics
Audio and Phone:
Radio, amplifier, speakers, Bluetooth and phone integration
Electronics:
Body control module, modules and electronic system service
Entertainment:
Rear seat entertainment, video and media systems
Navigation:
Navigation head unit, GPS antenna and related components
Security and Keyless Entry:
Passlock, remote keyless entry and theft deterrent systems
Sunroof Convertibles:
Sunroof and convertible top mechanisms where equipped
Owners Manual:
Full owners manual covering controls, features and operator maintenance
Specification:
Torque values, capacities, clearances and general specifications
📊 Manual Specifications
File & Compatibility
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print & Binding
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
⚙️ Engine Specifications
Engine
Engine Code:
6.0L V8 (Vortec 6000, GM small-block family)
Displacement:
6.0 L (364 cu in)
Configuration:
V8, 90-degree, overhead valve (OHV)
Fuel System:
Sequential multi-port fuel injection (Petrol FI)
Engine Options Range:
6.0L V8 petrol fuel injected as fitted to H2 models in this coverage
Performance
Horsepower:
~325 hp (242 kW) at 5200 rpm for 6.0L H2 applications
Torque:
~365 lb-ft (495 Nm) at 4000 rpm for 6.0L H2 applications
Fuel Type:
Regular unleaded petrol
Emissions:
Equipped with catalytic converters and OBD-II emission controls
🔧 Transmission
Standard Transmission
Type:
4-speed automatic, GM 4L60-E / 4L65-E family
Drive:
Full-time four-wheel drive
Gear Ratios:
N/A - exact ratios vary by model year and axle configuration
Transfer Case and Features
Transfer Case:
Two-speed full-time four-wheel drive transfer case
Modes:
4HI, 4HI Locked, 4LO Locked, Neutral (varies by equipment)
Features:
Electronic or manual range selection, locking differentials available, tow/haul mode on automatic
📐 Dimensions
Exterior
Wheelbase:
122.8 in (3118 mm)
Overall Length:
189.8 in (4820 mm) for SUV models
Overall Width:
81.2 in (2062 mm)
Overall Height:
79.2 in (2012 mm)
Ground Clearance:
~9.7 in (246 mm)
Track Width:
N/A - not specified here; varies by wheel and tire package
Weights
Curb Weight:
~6400-6600 lb (2900-3000 kg) depending on trim and equipment
Gross Vehicle Weight Rating:
N/A - refer to vehicle door jamb label for exact GVWR
Payload:
N/A - varies by configuration and options
Towing Capacity:
~6700 lb when properly equipped
🛡️ Safety Features
Active Safety
Anti-lock Braking System:
Four-wheel ABS with traction control
Stability Control:
Electronic stability control introduced in later model years
Traction Control:
Electronic traction control integrated with ABS
Tire Pressure Monitoring:
Tire pressure monitoring system on later models
Passive Safety
Airbags:
Dual front airbags; side curtain airbags available on later models
Seatbelts:
Three-point seatbelts with pretensioners and load limiters
Body Structure:
Full-length boxed frame with energy-absorbing front structure
Ratings
NHTSA Crash Test Rating:
N/A - not published for this model by NHTSA
IIHS Rating:
N/A - not evaluated by IIHS
💡 Technology Features
Infotainment
Audio System:
Factory AM/FM stereo with CD player; premium Bose multi-speaker system available
Rear Entertainment:
Rear seat entertainment system available on higher trims
Navigation:
Factory navigation system available on later model years
Phone Integration:
Hands-free phone integration on later model years
Driver Assistance
Parking Assist:
Rear parking assist available on later models
OnStar:
OnStar telematics system fitted on GM models of this era
Cruise Control:
Electronic cruise control standard
🔧 Maintenance
Service Intervals
Engine Oil and Filter:
Every 7500 miles (12000 km) or per oil life monitor, whichever comes first
Tire Rotation:
Every 7500 miles (12000 km)
Air Filter:
Inspect every 15000 miles; replace as needed
Spark Plugs:
Replace at 100000 miles (160000 km) with platinum plugs
Transmission Fluid:
Per severe service schedule; typically 50000 miles for severe use
Fluid Specifications
Engine Oil:
SAE 5W-30 API certified
Engine Oil Capacity:
~6 quarts (5.7 L) with filter change
Coolant:
DEX-COOL extended life coolant 50/50 mix
Transmission Fluid:
Dexron III / Dexron VI automatic transmission fluid
Transfer Case Fluid:
GM Auto-Trak II or specified transfer case fluid
Brake Fluid:
DOT 3 brake fluid
Known Issues and Wear Items
Fuel Pump:
Electric fuel pump failure is a commonly reported issue
Front Wheel Bearings:
Hub and bearing assemblies wear with mileage; inspect for play and noise
Brake Rotors:
Front rotors prone to warping on heavy vehicle; inspect for runout
Electrical Grounds:
Body and engine ground corrosion can cause intermittent electrical faults
Suspension Components:
Torsion bar keys, ball joints and tie rod ends are wear items
📚 Vehicle History
Brand and Manufacturer
Manufacturer:
General Motors (GM)
Brand:
HUMMER
Brand Heritage:
Derived from AM General HMMWV military vehicle; HUMMER brand sold by GM from 1999 to 2010
Model Evolution
Introduction:
H2 launched for the 2003 model year as the second HUMMER model after the H1
Body Styles:
SUV introduced 2003; SUT (sport utility truck) introduced 2005
Updates:
Minor trim and feature updates through 2007; 6.0L V8 remained primary engine for coverage period
Production End:
H2 production ended in 2009 with the closure of the HUMMER brand
Production Location
Assembly Plant:
AM General Commercial Assembly Plant, Mishawaka, Indiana, USA
Production Years:
2002-2009
🏆 Awards & Recognition
Model Recognition
North American Truck of the Year:
HUMMER H2 was a finalist in 2003
Automotive Press:
Widely covered for its extreme off-road capability and distinctive design
Motor Trend:
Featured and tested extensively; not a Truck of the Year winner
Era Recognition
Brand Status:
Recognized as an icon of early 2000s American full-size SUV design
Off-Road Capability:
Acknowledged for factory off-road equipment including ground clearance and four-wheel drive