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Hummer H2 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Hummer REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about Hummer H2 car and truck
repair procedures including Hummer engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your Hummer H2 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR Hummer H2 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Hummer H2 cars and light trucks from 1990+
Component Replacement & Adjustment -> Hummer H2 -> Thermostat, Replace
Vehicle: 2003 Hummer H2 6.0 V8 GAS
The thermostat is not serviceable separately. The housing and thermostat must be replaced as an assembly.
- Drain cooling system/engine block into suitable container.
- Loosen clamps at throttle body and at Mass Air Flow (MAF) sensor and remove air cleaner ...
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BRAKE SERVICE PROCEDURES FOR Hummer H2 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Hummer H2 cars and light trucks from 1990+.
Power Brake Units -> Delco Brake Booster -> Precautions -> Connect -> Disconnect -> Hybrid Battery Service
Vehicle: 2008 Hummer H2 6.2 V8 GAS
Hybrid Battery Service
Disconnect
Before working on any high voltage system, be sure to wear the following Personal Protection Equipment: Safety glasses with appropriate side shields when within 50 feet of the vehicle, either indoors or outdoors. Certified and up-to-date Class "0" Insulation gloves rated at 1000 volts with leather protectors. Visually and functionally inspect the gloves before use. Wear the Insulation gloves at all times when working with the high voltage battery assembly, whether the system is energized or not. Failure to follow the procedure exactly as written may res...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Hummer H2 AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Hummer H2 cars and light trucks sold in the U.S. for 1980+.
General Motors Corp./Saturn Light Trucks, SUVs & Vans -> Component Locations -> 1999-06 Escalade, Avalanche & Denali, 1988-03 & C/K Pickup (Except 1999-03 Sierra & Silverado), 1992-06 Blazer, Jimmy, Hummer H2, SSR, Suburban, Yukon XL, Tahoe, Yukon, Bravada Gasoline Engines & 2004-06 Rainier, TrailBlazer & Envoy
Vehicle: 2003 Hummer H2 6.0 V8 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Hummer H2 AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Hummer H2 cars and light trucks from 1990+.
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2009 Hummer H2 6.2 V8 FLEX
Never clamp propeller shaft tubing in a vise. Clamping could dent or deform the tube causing an imbalance or unsafe condition. Always clamp on one of the yokes and support the shaft horizontally. Avoid damaging the slip yoke sealing surface. Nicks may damage the bushing or cut the lip seal.
Disassemble
- Support propeller shaft in a line horizontal with table of a press.
- Mark propeller shaft in order to show which end connects to transmission and which end goes to rear axle.
- On models equipped with external snap ring retainers, proceed as follows:
- Disassemble snap rings by ...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR Hummer H2 AUTOMOBILES
Description, component locations, reset procedures, relearn procedures, diagnosis and testing, wiring diagrams, component replacement, and identification of vehicles equipped and not equipped with tire pressure monitoring system for most domestic and imported Hummer H2 cars and light trucks sold in the U.S. from mid 1990's+.
Reset Procedures
Vehicle: 2008 Hummer H2 6.2 V8 GAS
When the TPMS detects a significant loss of tire pressure, the CHECK TIRE PRESSURE message is displayed on the DIC and the low tire pressure indicator is displ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Hummer H2 AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Hummer H2 cars and light trucks from 1990+.
Alternator, Replace
Vehicle: 2006 Hummer H2 6.0 V8 GAS
- Disconnect battery ground cable.
- Remove air inlet duct, if required.
- Disconnect terminal plug and battery lead connections from back of alternator.
- Remove upper fan shroud mounting bolts and fan shroud.
- Remove accessory drive belt using suitable 3/8 i...
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MAINTENANCE LAMP RESET PROCEDURES FOR Hummer H2 AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Hummer H2 cars and light trucks sold in the U.S. from 1990+.
General Motors Corp./Saturn Trucks -> Service Four Wheel Drive (4WD) System Warning Lamp ->
Vehicle: 2006 Hummer H2 6.0 V8 GAS
This lamp should light for approximately 6-8 seconds when the ignition is turned On as a bulb check. If the ...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Hummer H2 AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Hummer H2 cars and light trucks from 1990+
Radiator, Replace
Vehicle: 2009 Hummer H2 6.2 V8 FLEX
- Drain cooling system into a suitable container.
- Remove surge tank hose/pipe.
- Remove radiator inlet hose.
- Remove radiator outlet hose.
- Remove cooling fan and shroud.
- Disconnect engine oil cooler lines from radiator.
- Disconnect transmission oil cooler lines from radiator.
- Remo...
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SERPENTINE BELT SERVICE PROCEDURES FOR Hummer H2 AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Hummer H2 cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 2003 Hummer H2 6.0 V8 GAS
- Rotate tensioner clockwise to release belt tension using suitable wrench, then remove belt.
- Route belt over pulleys excep...
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COMPONENT LOCATION DIAGRAMS FOR Hummer H2 AUTOMOBILES
Component location diagrams for most Hummer H2 cars and light trucks sold in the U.S. from 1990+.
 Ground G-300 Diagram for 2005 Hummer H2 6.0 V8 GASComponents on diagram: |
 Body Components Diagram for 2003 Hummer H2 6.0 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR Hummer H2 AUTOMOBILES
OEM drawn wiring diagrams for most Hummer H2 cars and light trucks sold in the U.S.
 2006 Hummer H2 6.0 V8 GAS Wiring DiagramComponents on diagram: |
 2008 Hummer H2 6.2 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Hummer H2 AUTOMOBILES
OEM TSB listings for most Hummer H2 cars and light trucks sold in the U.S. from 1985+.
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Document: ONSTAR HANDSFREE CALLING (OHFC) INOPERATIVE AND ONSTAR BLUE BUTTON KEYPRESS IS NOW RECEIVING THE DEMO MESSAGE Vehicle: 2003 Hummer H2 6.0 V8 GAS Symptoms: |
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Document: USE OF PARTS AND COMPONENTS NOT ISSUED THROUGH GENERAL MOTORS Vehicle: 2004 Hummer H2 6.0 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Hummer H2 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Hummer H2 cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most Hummer H2 cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most Hummer H2 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most Hummer H2 cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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