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2008 Hummer H3 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Hummer REPAIR SHOPS DON'T WANT YOU TO KNOW
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- 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 H3 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 H3 automobile. Try the Automotix DIY solution today!
BRAKE SERVICE PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES
Disc Brakes -> Delco Dual Piston Sliding Caliper -> Description
Vehicle: 2008 Hummer H3 Alpha 5.3 V8 GAS
The caliper mounts in a way that allows the caliper to move laterally inboard as the brake pads wear. The caliper housing is a one piece casting with the inboard side containing the piston bore. The piston seal also acts as a return mechanism for the piston.
Applying the brake pedal causes the hydraulic pressure that moves the caliper piston. The piston then forces the inboard brake pad against the inboard braking surface of the rotor. Increasing the force against...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2008 Hummer H3 X 3.7 L5 GAS
- Raise and support vehicle.
- Remove wheel and tire assembly.
- Remove wheel drive shaft nut and washer. Do not reuse wheel drive shaft nut, replace with new.
- Remove steering knuckle assembly.
- Release wheel drive shaft by placing a brass drift against tripod housing. Firmly strike brass drift with a hammer to release drive shaft.
- Remove front wheel drive shaft from vehicle.
- Reverse procedure to install, noting the following:
- A snap or po...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES
Component Replacement -> Installation -> Removal -> Tire Pressure Indicator Sensor
Vehicle: 2008 Hummer H3 3.7 L5 GAS
Tire Pressure Indicator Sensor
Each tire pressure sensor has an internal power supply which has a service life of 10 years.
Removal
- Loosen the lug nuts.
- Raise and support vehicle with jack stands, then remove the wheel and tire assembly.
- Prior to dismounting the tire from the wheel, note the following precautions:
- Position the bead breaking fixture 90° from the valve stem when separating the tire bead from the wheel.
- Place the mounting and dismounting head so that the tire iron or pry bar can be inserted slightly clockwise of the sensor body when prying the tire bead up and over ...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES
Alternator, Replace
Vehicle: 2008 Hummer H3 3.7 L5 GAS
- Disconnect battery ground cable.
- Remove drive belt using a suitable tool.
- Raise and support vehicle only high enough to access air conditioning compressor through wheelhouse.
- Remove left front wheel.
- Remove retainers and left wheelhouse liner.
- On models equipped with air conditioning ,disengage air conditioning compressor electrical connector from bracket.
- Recover air conditioning system, using a suitable air conditioning Service Center.
- Disconnect A/C condenser and evaporator lines from A/C compressor.
- Remove A/C compressor mounting bolts. Upper mounting bolt will remain with A/C c...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES
General Motors Corp./Saturn Trucks -> StabiliTrak Control System Warning Lamp ->
Vehicle: 2008 Hummer H3 X 3.7 L5 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned On as a bulb check. If the warning...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2008 Hummer H3 3.7 L5 GAS
Lower
- Drain cooling system into a suitable container.
- Remove air cleaner resonator outlet duct.
- Reposition hose clamp from engine.
- Remove radiator outlet hose from engine.
- Reposition hose clamp from radiator.
- Remove radiator outlet hose from radiator and from vehicle.
- Reverse procedure to install.
Upper
- Partially dr...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2008 Hummer H3 3.7 L5 GAS
- Install a 3/8 inch breaker bar into drive belt tensioner.
- Rotate tensioner clockwise, in order to relieve tension on drive belt.
- Slide drive belt off of w...
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COMPONENT LOCATION DIAGRAMS FOR 2008 Hummer H3 AUTOMOBILES
Component location diagrams for most 2008 Hummer H3 cars and light trucks sold in the U.S. from 1990+.
 Pedal Assembly Diagram for 2008 Hummer H3 3.7 L5 GASComponents on diagram: |
 Engine Compartment Components Diagram for 2008 Hummer H3 Alpha 5.3 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2008 Hummer H3 AUTOMOBILES
OEM drawn wiring diagrams for most 2008 Hummer H3 cars and light trucks sold in the U.S.
 2008 Hummer H3 X 3.7 L5 GAS Wiring DiagramComponents on diagram: |
 2008 Hummer H3 Alpha 5.3 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2008 Hummer H3 AUTOMOBILES
OEM TSB listings for most 2008 Hummer H3 cars and light trucks sold in the U.S. from 1985+.
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Document: Engine Rattle Noise after R And R of the Crankshaft Balancer -Inspect Bolt Torque Vehicle: 2008 Hummer H3 X 3.7 L5 GAS Symptoms: |
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Document: Revised General Motors New Vehicle Tire Warranty Program Vehicle: 2008 Hummer H3 X 3.7 L5 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2008 Hummer H3 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2008 Hummer H3 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 H3 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 H3 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 H3 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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