2004 GMC Sierra 2500 HD Wiring Diagrams (ONLINE REPAIR MANUALS)

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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:
  • Transfer Case Shift Control Module
  • Powertrain Control Module
  • Transfer Case Encoder 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:
  • Vehicle Speed Sensor
  • Clutch Start Switch
  • Powertrain 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
  • 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:
  • Body Control Module
  • Door Lock Switch Driver
  • Door Lock Switch Front Passenger
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Backup Lamp Switch
  • Park Neutral Position Switch
  • Backup Lamp Left
  • Backup Lamp Right
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Door Latch Assembly RR
  • Door Latch Assembly LR
  • Door Latch Assembly Driver
  • Door Latch Assembly Front Passenger
  • 2004 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2004 GMC Sierra 2500 HD 6.6 V8 DIESEL 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  8.1 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Battery Left
  • 2004 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2004 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Radio
  • Digital Radio Receiver
  • Rear Seat Entertainment 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:
  • Cigar Lighter
  • Auxiliary Power Outlet Front
  • Auxiliary Power Outlet Console
  • Auxiliary Power Outlet Bin
  • 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 2006 GMC Sierra 2500 HD Tailgate Handle Bezel2006 GMC Sierra 2500 HD Tailgate Handle Bezel, A high quality, direct fit OE replacement tailgate handle bezel; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $6.34

    Click here to view more details about 2010 GMC Sierra 2500 HD Vent Visor, Front Or Rear2010 GMC Sierra 2500 HD Vent Visor, Front Or Rear, Crafted in Germany from the finest 3 mm tinted acrylic material available; Optically transparent; Precision-machined to perfectly fit your vehicle; Features sleek, low profile, and aerodynamic design to help reduce wind noise and allow interior heat to escape; Provides fresh air enjoyment with an original equipment look; Helps keep side windows dry in the rain; Installs inside the window channel; Easy installation with no exterior tape needed..

    Source: Auto Body Parts Store

    $97.71

    Click here to view more details2013 GMC Pickup Denali 2500-3500 18" x 8" Steel Wheel, Steel Wheel; 18 X 8; 44MM Offset; 8 Slots; 8 Lug; 180M BP; New Replica; Silver Full Face, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $189.50

    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: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,099.00

    Click here to view more details2010 GMC Sierra 2500 HD Used Front Drive Shaft, 6.6, AUTO, 4X4 5 spd opt M74, Very Good.

    Source: Used Auto Parts Store

    $95.00

    Click here to view more details2009 GMC Sierra 2500 HD Used Fan Clutch, 5.3, AUTO, 4X4, GFZ, Very Good.

    Source: Used Auto Parts Store

    $62.00
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