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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 GMC Sierra 2500 HD car and truck repair procedures including GMC 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 2004 GMC Sierra 2500 HD automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2004 GMC Sierra 2500 HD

  • 2004 GMC Sierra 2500 HD 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:U
  • 2004 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:1
  • 2004 GMC Sierra 2500 HD 8.1 V8 GAS, CID:496, Fuel Injection, Aspiration:496, Engine VIN:, Desg:G
  • 2004 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:403, Fuel Injection, Aspiration:403, Engine VIN:, Desg:2

WIRING DIAGRAMS FOR 2004 GMC Sierra 2500 HD AUTOMOBILES

OEM drawn wiring diagrams for most 2004 GMC Sierra 2500 HD cars and light trucks sold in the U.S.

2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

Components on diagram:
  • Mass Air Flow Sensor
  • Intake Air Temperature Sensor
  • Air Cleaner
  • 2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Instrument Panel Cluster
  • Body Control Module
  • Electronic Brake Control Module
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Starter Solenoid
  • Ignition Switch
  • Clutch Start Switch
  • Powertrain Control Module
  • Park Neutral Position Switch
  • 2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Seat Adjuster Switch Driver
  • Seat Rear Vertical Motor Driver
  • Seat Horizontal Motor Driver
  • Seat Front Vertical Motor Driver
  • 2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Inside Rearview Mirror
  • Ambient Air Temp Sensor
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Washer Fluid Level Sensor
  • Headlamp Low Beam Right
  • Park Turn Signal Lamp RF
  • Headlamp High Beam Right
  • Park Turn Signal Lamp LF
  • 2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Battery Left
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Cellular Microphone
  • Cellular and Navigation Antenna
  • OnStar Button Assembly
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Radio
  • Audio Amplifier
  • Rear Seat Audio Controller
  • CLICK HERE TO GET FULL ACCESS TO 2004 GMC Sierra 2500 HD WIRING DIAGRAMS!

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

    Click here to view more details about 2002 GMC Sierra 2500 HD Bumper, Rear2002 GMC Sierra 2500 HD Bumper, Rear, With provisions for step pad and trailer hitch; A high quality, direct fit OE replacement bumper face bar..

    Source: Auto Body Parts Store

    $129.11

    Click here to view more details about 2008 GMC Sierra 2500 HD Third Brake Light2008 GMC Sierra 2500 HD Third Brake Light, With cargo light and clear lens; Without red caps; FMVSS-108, DOT and SAE approved; A high quality, direct fit OE replacement third brake light..

    Source: Auto Body Parts Store

    $298.35

    Click here to view more details2009 GMC Acadia 20" X 7.5" Alloy Wheel, ALLOY WHEEL, 20 X 7.5, 6 STUDS/LUGS, 132MM BOLT DIA, 12 SPOKES, OE CHROME, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $299.45

    Click here to view more details2002 GMC Sierra 2500 HD V8, 8.1 L, 496 CID Rebuilt Engine, Roller Vortec, Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

    $3,265.00

    Click here to view more details2009 GMC Sierra 2500 HD Used Radio, AM-FM-stereo-CD-MP3 (opt US8), Very Good.

    Source: Used Auto Parts Store

    $229.00

    Click here to view more details2011 GMC Sierra 2500 HD Used Air Flow Meter/Sensor, 6.6, AUTO, 4X4, Very Good.

    Source: Used Auto Parts Store

    $85.00
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