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2004 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!

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 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!
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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 2004 Hummer H2 vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES

Automatic Temperature Control Systems Diagnosis & Testing -> Hummer H2 -> Technical Service Bulletins -> 2003 -> Flutter Noise
Vehicle: 2004 Hummer H2 6.0 V8 GAS

Flutter Noise

2003

On some of these models there may be a flutter type noise in the passenger compartment when the air conditioning system is on, bi-level fan speed is at medium, or high temperature is full cold and recirculation is on.

This condition may be caused by the oscillating movement of the air conditioning valve/door within the air distribution system ductwork.

To correct this condition, proceed as follows:

  • Connect Tech 2, or equivalent diagnostic scan tool to Diagn...

CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 A/C & HEATER SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES

Hydraulic Brake Systems -> Adjustments -> Height Sensing Proportioning Valve
Vehicle: 2004 Hummer H2 6.0 V8 GAS

Height Sensing Proportioning Valve

The height sensing proportioning valve must be adjusted whenever the valve and/or linkage is disassembled or removed for service. In addition, adjustment should be inspected if excessive front wheel lock-up is experienced with a lower than desired brake application rate when vehicle is at or near maximum GVWR.

  • Raise and support vehicle, leave wheels on and allow axle to hang freely.
  • Remove lever retaining nut and disconnect lever from valve shaft, Fig. .
  • Rotate valve shaft to permit installation of correct adjustment gauge, Fig. , ensure D shaped hol...

CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 BRAKE SERVICE PROCEDURES

FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES

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: 2004 Hummer H2 6.0 V8 GAS

CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 FUEL FILTER REPLACEMENT PROCEDURES

DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES

DRIVESHAFT, Replace -> Front -> Install -> Rear -> Remove
Vehicle: 2004 Hummer H2 6.0 V8 GAS

Front

Remove

Before disassembly, observe and accurately reference mark all driveline components relative to the propeller shaft and axles. These items include the following components:

  • Propeller shafts
  • Wheel drive shafts
  • Pinion flanges
  • Output shafts

Assemble all components in the exact relationship to each other as they were prior to removal. Observe all published specifications and torque values, and any measurements obtained prior to disassembly.

  • Raise and support vehicle.
  • Remove transfer case shield, if equipped.
  • If equipped with double clamp style boot, remove clamp at transfer ca...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES

Alternator, Replace
Vehicle: 2004 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 2004 Hummer H2 AUTOMOBILES

General Motors Corp./Saturn Trucks -> Reduce Engine Power Indicator Lamp ->
Vehicle: 2004 Hummer H2 6.0 V8 GAS

The Reduce Engine Power indicator lamp should light for a approximately 3 seconds when the ignition is turned On as a bulb check. If the warning lamp turns On during vehicle operation, a vehicl...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2004 Hummer H2 6.0 V8 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Reposition heater core inlet hose clamp at engine.
  • Remove hose from engine.
  • Reposition heater hose inlet clamp at heater core.
  • Remove heater inlet hose from heater core.
  • Remove hose from vehicle.
  • Reverse procedure to in...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Hummer H2 AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2004 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 2004 Hummer H2 AUTOMOBILES

Component location diagrams for most 2004 Hummer H2 cars and light trucks sold in the U.S. from 1990+.

Steering Column Diagram for 2004 Hummer H2  6.0 V8 GASSteering Column Diagram for 2004 Hummer H2 6.0 V8 GAS

Components on diagram:
  • Horn Switch
  • Steering Wheel Controls
  • Turn Signal/Multifunction Switch
  • Seat Components Diagram for 2004 Hummer H2  6.0 V8 GASSeat Components Diagram for 2004 Hummer H2 6.0 V8 GAS

    Components on diagram:
  • Memory Seat Module
  • Seat Adjuster Switch
  • Seat Recline Motor
  • Seat Horizontal Motor
  • Connector C-325
  • CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2004 Hummer H2 AUTOMOBILES

    OEM drawn wiring diagrams for most 2004 Hummer H2 cars and light trucks sold in the U.S.

    2004 Hummer H2  6.0 V8 GAS Wiring Diagram2004 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Driver Door Module
  • Ambient Air Temperature Sensor
  • Inside Rear View Mirror
  • Outside Rear View Mirror-Driver
  • 2004 Hummer H2  6.0 V8 GAS Wiring Diagram2004 Hummer H2 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Inflatable Restraint Steering Wheel Module
  • Inflatable Restraint Steering Wheel Module Coil
  • Inflatable Restraint Front End Discriminating Sensor-Left
  • Steering Wheel Module-High Control
  • Inflatable Restraint Front End Discriminating Sensor-Right
  • CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2004 Hummer H2 AUTOMOBILES

    OEM TSB listings for most 2004 Hummer H2 cars and light trucks sold in the U.S. from 1985+.

    Document: Revised General Motors New Vehicle Tire Warranty Program
    Vehicle: 2004 Hummer H2 6.0 V8 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • Document: Front or Rear Axle Vent Hose Fluid Leak
    Vehicle: 2004 Hummer H2 6.0 V8 GAS

    Symptoms:
  • Leaks
  • CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2004 Hummer H2 AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 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 2004 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 2004 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 2004 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

    CLICK HERE TO GET FULL ACCESS TO 2004 Hummer H2 SPECIFICATIONS DATA!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details2007 Hummer H2 Mirror, Passenger Side.

    Source: Auto Body Parts Store

    $401.70

    Click here to view more details about 2008 Hummer H2 Bumper Light, Rear2008 Hummer H2 Bumper Light, Rear.

    Source: Auto Body Parts Store

    $129.89

    Click here to view more details2007 Hummer H2 17" x 8.5" Alloy Wheel, Alloy Wheel; 17 X 8.5; 7 Spokes; 8 Lug; 6.5 Inch BP; Light PVD Chrome Aftermarket, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $245.50

    Click here to view more details2005 Hummer H2 V8, 6.0 L, 368 CID Rebuilt Engine, 6.0 V-8 Aluminum Heads, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,099.00

    Click here to view more details2003 Hummer H2 Used Parking Lamp, Passenger Side, FOG/DRIVING; (BUMPER MTD), Very Good.

    Source: Used Auto Parts Store

    $108.00

    Click here to view more details2003 Hummer H2 Used Upper Control Arm, Driver Side, 6.0, AUTO, 4X2, Very Good.

    Source: Used Auto Parts Store

    $62.00
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