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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:
  • Selectable Ride Switch
  • Shock Absorber Solenoid RR
  • Shock Absorber Solenoid RF
  • Shock Absorber Solenoid LR
  • Shock Absorber Solenoid LF
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • 1-2 Shift Solenoid Valve
  • 2-3 Shift Solenoid Valve
  • Powertrain Control Module
  • Automatic Transmission
  • Stoplamp Switch
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Park Turn Signal Lamp RF
  • Park Turn Signal Lamp LF
  • Marker Lamp LF
  • Marker Lamp RF
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Clearance Lamp RR
  • Clearance Lamp RF
  • License Lamp Right
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Windshield Wiper Motor Module
  • Instrument Panel Cluster
  • Washer Fluid Level Sensor
  • Windshield Washer Fluid Pump
  • 2004 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Ignition Coils
  • Ignition Control Module
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Transmission Control Module
  • Water In Fuel Sensor
  • Glow Plug Controller
  • Engine Control Module
  • Engine Oil Level Switch
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Radio
  • Cellular Microphone
  • Cellular and Navigation Antenna
  • OnStar Button Assembly
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Radio
  • Digital Radio Receiver
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Transmission Control Module
  • Powertrain Control Module
  • Engine Control Module
  • Power Take Off Relay
  • Power Take Off Switch
  • 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 details2005 GMC Sierra 2500 HD Bumper Bracket, Front, Driver Side, AutoTrust Gold products are guaranteed to meet or exceed the original manufacturer's standards and quality; <b>Backed by a 5-year limited warranty</b>; If the part breaks or is damaged - even if you are involved in a wreck or accident - anytime within 5 years from purchase, simply cover shipping and handling and we will send you a new part..

    Source: Auto Body Parts Store

    $11.15

    Click here to view more details about 2005 GMC Sierra 2500 HD Mirror, Driver Side2005 GMC Sierra 2500 HD Mirror, Driver Side.

    Source: Auto Body Parts Store

    $76.67

    Click here to view more details about 2004 GMC Sonoma Pickup Power Door Mirror, Passenger Side2004 GMC Sonoma Pickup Power Door Mirror, Passenger Side, PASSENGER SIDE POWER DOOR MIRROR, HEATED GLASS, WITHOUT DIMMER, FOLDAWAY, BLACK TEXTURED, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $67.84

    Click here to view more details2005 GMC Sierra 2500 HD V8, 6.0 L, 368 CID Rebuilt Engine, 6.0 V-8 Aluminum Heads, Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

    $2,099.00

    Click here to view more details2011 GMC Sierra 2500 HD Used Wiper Motor Front, new style (smooth Dr skin), assm plant opt ARL, CMD, FWI, JAN or MSL, Very Good.

    Source: Used Auto Parts Store

    $123.00

    Click here to view more details2010 GMC Sierra 2500 HD Used Air Cleaner Assembly, 6.6, AUTO, 4X4 6.6L, Very Good.

    Source: Used Auto Parts Store

    $257.00
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