2008 Hummer H3 REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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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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Get Full Access 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!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Hummer mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2008 Hummer H3 vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

BRAKE SERVICE PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES

Disc Brakes -> Delco Dual Piston Sliding Caliper -> Rotor, Replace
Vehicle: 2008 Hummer H3 Alpha 5.3 V8 GAS

  • Raise and support vehicle, then remove wheel and tire assemblies.
  • Compress caliper pistons until they bottom in bores using suitable clamp.
  • Remove calip...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES

DRIVESHAFT, Replace -> Front -> One Piece Driveshaft -> Rear -> Two Piece Driveshaft
Vehicle: 2008 Hummer H3 3.7 L5 GAS

Front

  • Raise and support vehicle.
  • Mark the front U-joint to the pinion yoke on the front differential.
  • Mark the relationship of the rear U-joint to the transfer case drive flange.
  • Remove the retaining nuts and bolts from the drive flange.
  • Remove the clamps and retaining bolts from the front drive axle pinion flange.
  • Remove the front propeller shaft from the vehicle.
  • Using tape and or a rubber band, wrap the front U-joint bearing caps to ensure the caps do not separate from the U-joint.
  • Reverse procedure to install, noting the following:
    • Torque front propeller shaft to the pinion flang...

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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 Alpha 5.3 V8 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

Starter, Replace
Vehicle: 2008 Hummer H3 3.7 L5 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 H3 AUTOMOBILES

General Motors Corp./Saturn Trucks -> Check Engine/Service Engine Soon Indicator Lamp -> Electronic Engine Controls Or Electronic Fuel Injection Except Tracker
Vehicle: 2008 Hummer H3 Alpha 5.3 V8 GAS

The Check Engine/Service Engine Soon Lamp should light when the ignition is turned On. When the engine is started, the lamp should go off. If the lamp remains on for 10 seconds or constantly after the engine is started, the self diagnosis system has detected a problem and has stored a code in the system Electronic Control Module (ECM) or Powertrain Control Module (PCM). After diagnosis and repair, the ECM/PCM memory can be cleared of codes either by using a scan tool (OBD II systems) or by disconnecting the battery ground ca...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2008 Hummer H3 AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2008 Hummer H3 X 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 X 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+.

Instrument Panel Diagram for 2008 Hummer H3 X 3.7 L5 GASInstrument Panel Diagram for 2008 Hummer H3 X 3.7 L5 GAS

Components on diagram:
  • Connector C204
  • Connector C350
  • Connector C600
  • Rear Axle Diagram for 2008 Hummer H3 Alpha 5.3 V8 GASRear Axle Diagram for 2008 Hummer H3 Alpha 5.3 V8 GAS

    Components on diagram:
  • Differential Lock Actuator
  • Rear Axle
  • Chassis Harness
  • CLICK HERE TO GET FULL ACCESS TO 2008 Hummer H3 PARTS/COMPONENTS LOCATION DIAGRAMS!

    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 Diagram2008 Hummer H3 X 3.7 L5 GAS Wiring Diagram

    Components on diagram:
  • Rear Accessory Power Outlet
  • Instrument Panel Accessory Power Outlet 2
  • Instrument Panel Accessory Power Outlet 1
  • 2008 Hummer H3  3.7 L5 GAS Wiring Diagram2008 Hummer H3 3.7 L5 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Body Control Module
  • Dome Lamp
  • RH Vanity Mirror Lamp
  • LH Vanity Mirror Lamp
  • CLICK HERE TO GET FULL ACCESS TO 2008 Hummer H3 WIRING DIAGRAMS!

    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+.

    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:
  • Noise
  • Auto Systems:
  • Gasoline Engines
  • Document: Revised General Motors New Vehicle Tire Warranty Program
    Vehicle: 2008 Hummer H3 X 3.7 L5 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 2008 Hummer H3 TECHNICAL SERVICE BULLETINS!

    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

    CLICK HERE TO GET FULL ACCESS TO 2008 Hummer H3 SPECIFICATIONS DATA!

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