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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:
  • Park Lamp Relay
  • Body Control Module
  • Headlamp and Panel Dimmer Switch
  • LH Front Marker Lamp
  • RH Front Marker Lamp
  • 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:
  • HVAC Control Module
  • Outside Rearview Mirror Switch
  • Driver Outside Rearview Mirror
  • Driver Door Lock Window Switch
  • 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:
  • 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:
  • Radio
  • Digital Radio Receiver
  • Cellular Navigation and Digital Radio Antenna
  • 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:
  • Body Control Module
  • Ambient Air Temperature Sensor
  • Inside Rearview Mirror
  • Driver Outside Rearview Mirror
  • Underhood Fuse Block
  • 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:
  • Instrument Panel Cluster
  • Generator
  • RH Battery
  • Engine Control Module
  • Driver Information Center
  • 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:
  • Starter Motor
  • RH Battery
  • Auxiliary Battery Relay
  • Intake Air Heater
  • LH Battery
  • 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
  • LH Rear Door Latch
  • Video Display
  • Vehicle Communication Interface Module
  • 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:
  • Lock Relay
  • Unlock Relay
  • RH Rear Door Latch
  • LH Rear Door Latch
  • Driver Door Latch
  • 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:
  • Fuel Pump
  • Rear Defogger Relay
  • Horn
  • Oxygen Sensor
  • Fuel Heater
  • 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 2006 GMC Sierra 2500 HD Tail Light, Passenger Side2006 GMC Sierra 2500 HD Tail Light, Passenger Side.

    Source: Auto Body Parts Store

    $88.61

    Click here to view more details2001 GMC Sierra 2500 HD Turn Signal Switch, Front, Also controls high and low beam dimmer, hazard warning, windshield washer fluid, and wipers; A high quality, OE replacement turn signal switch; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $319.23

    Click here to view more details2005 GMC S15 Jimmy Door Mirror Glass Perf Passenger Side, Passenger Side Replacement Mirror Glass; 8-11/16; Convex, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $18.45

    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 details2008 GMC Sierra 2500 HD Used Air Flow Meter/Sensor, 4.3, AUTO, 4X2, Very Good.

    Source: Used Auto Parts Store

    $85.00

    Click here to view more details2001 GMC Sierra 2500 HD Used Air Flow Meter/Sensor, 5.3, AUTO, RWD, Very Good.

    Source: Used Auto Parts Store

    $61.00
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