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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2008 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 2008 GMC Sierra 2500 HD automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2008 GMC Sierra 2500 HD

  • 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:K
  • 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:K
  • 2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:K
  • 2008 GMC Sierra 2500 HD WT 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:6
  • 2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:6
  • 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:6

WIRING DIAGRAMS FOR 2008 GMC Sierra 2500 HD AUTOMOBILES

OEM drawn wiring diagrams for most 2008 GMC Sierra 2500 HD cars and light trucks sold in the U.S.

2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS Wiring Diagram

Components on diagram:
  • RH Rear Window Switch
  • Passenger Window Switch
  • Driver Window Switch
  • Passenger Window Motor
  • RH Rear Window Motor
  • 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Foglamp Relay
  • Body Control Module
  • Headlamp and Panel Dimmer Switch
  • RH Front Foglamp
  • LH Front Foglamp
  • 2008 GMC Sierra 2500 HD WT 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD WT 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • RH Rear Door Latch
  • Body Control Module
  • LH Rear Door Latch
  • IP Fuse Block
  • Driver Door Latch
  • 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL Wiring Diagram2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • LH Front Speaker
  • RH Front Speaker
  • Subwoofer Speaker
  • LH Front Tweeter Speaker
  • RH Front Tweeter Speaker
  • 2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD SLE 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Ambient Air Temperature Sensor
  • Inside Rearview Mirror
  • Driver Outside Rearview Mirror
  • Underhood Fuse Block
  • 2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL Wiring Diagram2008 GMC Sierra 2500 HD SLE 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • RH Rear Door Latch
  • LH Rear Door Latch
  • Video Display
  • Vehicle Communication Interface Module
  • 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Passenger Seat Adjuster Switch
  • Passenger Seat Rear Vertical Motor
  • Passenger Seat Front Vertical Motor
  • Passenger Seat Horizontal Motor
  • Passenger seat Adjuster Motor Assembly
  • 2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL Wiring Diagram2008 GMC Sierra 2500 HD SLT 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Memory Seat Module
  • Passenger Heated Seat Switch
  • Passenger Heated Seat Back Element
  • Passenger Heated Seat Cushion Element
  • Passenger Door Lock Window Switch
  • 2008 GMC Sierra 2500 HD WT 6.6 V8 DIESEL Wiring Diagram2008 GMC Sierra 2500 HD WT 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Transmission Control Module
  • Automatic Transmission
  • Engine Control Module
  • Stoplamp Switch
  • Underhood Fuse Block
  • 2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS Wiring Diagram2008 GMC Sierra 2500 HD SLT 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Transfer Case Shift Control Module
  • Body Control Module
  • Transfer Case Shift Control Switch
  • CLICK HERE TO GET FULL ACCESS TO 2008 GMC Sierra 2500 HD WIRING DIAGRAMS!

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

    Click here to view more details about 2005 GMC Sierra 2500 HD Door Handle, Front, Driver Side2005 GMC Sierra 2500 HD Door Handle, Front, Driver Side, With keyhole; A high quality, OE replacement door handle; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $12.06

    Click here to view more details2010 GMC Sierra 2500 HD Bumper Bracket, Front, Driver Side, A high quality, OE replacement bumper bracket; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $22.19

    Click here to view more details1972 GMC Sprint Backup Light Assembly [2 PER Car], Backup Light Assembly [2 PER Car], , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $75.50

    Click here to view more details2002 GMC Sierra 2500 HD V8, 8.1 L, 496 CID Rebuilt Engine, Roller Vortec, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $3,265.00

    Click here to view more details2010 GMC Sierra 2500 HD Used Steering Gear, 6.0, AUTO, 4X4, PS POWER STEERING, Very Good.

    Source: Used Auto Parts Store

    $257.00

    Click here to view more details2008 GMC Sierra 2500 HD Used Condenser Assembly, 5.3, COL, 4X2, Very Good.

    Source: Used Auto Parts Store

    $141.00
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