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2008 Hummer H2 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Hummer REPAIR SHOPS DON'T WANT YOU TO KNOW
Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- Brake Service
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2008 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!
BRAKE SERVICE PROCEDURES FOR 2008 Hummer H2 AUTOMOBILES
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Caliper Service -> Assemble -> Disassemble -> Inspection -> Installation -> Removal
Vehicle: 2008 Hummer H2 6.2 V8 GAS
Removal
- Siphon 2/3 of the brake fluid from master cylinder.
- Raise and support vehicle.
- Remove tire and wheel assembly.
- Compress caliper pistons until they bottom in bores using suitable clamp, Fig. .
- Disconnect brake hose at caliper by removing inlet fitting bolt.
- Remove mounting bolts and caliper.
Inspection
Should it become required to remove the caliper for installation of new components, clean components in denatured alcohol, wipe dry using lint-free cloths. Blow out drilled passages and holes using compressed air. Inspect dust boots for punctures or tears. If punctures or tears are...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2008 Hummer H2 AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2008 Hummer H2 6.2 V8 GAS
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 2008 Hummer H2 AUTOMOBILES
Description
Vehicle: 2008 Hummer H2 6.2 V8 GAS
The TPMS (Tire Pressure Monitor System) warns the driver when a significant loss, or gain of tire pressure occurs in any of the four tires and allows the driver to display the individual tire pressures and the locations on the DIC (Driver Information Center) display. The system consists of the BCM (Body Control Module), DIC, instrument cluster, RCDLR (Remote Control Door Lock Receiver), RF (Radio Frequency transmitting tire pressure sensor in each wheel and serial data circuit. Each tire pressure sensor has an internal power supply with a service life of 10 years.
When the vehicle is...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2008 Hummer H2 AUTOMOBILES
Starter, Replace
Vehicle: 2008 Hummer H2 6.2 V8 GAS
- Loosen air cleaner resonator outlet duct clamp.
- Remove air cleaner resonator bolts.
- Lift upward on air cleaner resonator assembly.
- Disconnect crankcase ventilation hose from camshaft cover.
- Disconnect outlet duct from throttle body.
- Remove air cleaner resonator assembly from engine.
- Disconnect evaporative emission canister purge pipe from throttle control module, using suitable quick disconnect tool.
- Disconnect throttle body electrical connector.
- Remove throttle body bolts.
- Remove throttle body and seal from intake manifold, discard seal.
- Clean gasket surface.
- Open protective cover to acc...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2008 Hummer H2 AUTOMOBILES
General Motors Corp./Saturn Trucks -> Traction Control System (TCS)/Electronic Stability Control (ESC) Warning Lamp ->
Vehicle: 2008 Hummer H2 6.2 V8 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If t...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2008 Hummer H2 AUTOMOBILES
Radiator, Replace
Vehicle: 2008 Hummer H2 6.2 V8 GAS
- Drain radiator coolant into suitable container.
- Remove engine vent hose and surge take hose.
- Remove upper and lower radiator hoses.
- Remove cooling fan and shroud.
- Disconnect engine oil coo...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2008 Hummer H2 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2008 Hummer H2 6.2 V8 GAS
- Loosen air cleaner outlet duct clamps at following locations:
- Throttle body
- Mass airflow/intake air temperature (MAF/IAT) sensor.
- Remove air cleaner outlet duct.
- Install a breaker bar with hex-head socket to drive belt tensioner bolt.
- Rotate drive belt tensioner clockwise in o...
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COMPONENT LOCATION DIAGRAMS FOR 2008 Hummer H2 AUTOMOBILES
Component location diagrams for most 2008 Hummer H2 cars and light trucks sold in the U.S. from 1990+.
 Spare Tire Carrier Diagram for 2008 Hummer H2 6.2 V8 GASComponents on diagram: |
 Engine Compartment Diagram for 2008 Hummer H2 6.2 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2008 Hummer H2 AUTOMOBILES
OEM drawn wiring diagrams for most 2008 Hummer H2 cars and light trucks sold in the U.S.
 2008 Hummer H2 6.2 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 2008 Hummer H2 AUTOMOBILES
OEM TSB listings for most 2008 Hummer H2 cars and light trucks sold in the U.S. from 1985+.
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Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2008 Hummer H2 6.2 V8 GAS Auto Systems: |
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Document: GM of Canada New Vehicle Limited Warranty Tire Program Vehicle: 2008 Hummer H2 6.2 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2008 Hummer H2 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2008 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 2008 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 2008 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 2008 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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