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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2002 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 2002 GMC Sierra 2500 HD automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2002 GMC Sierra 2500 HD

  • 2002 GMC Sierra 2500 HD 6.0 V8 GAS, CID:364, Fuel Injection, Aspiration:364, Engine VIN:, Desg:U
  • 2002 GMC Sierra 2500 HD 6.6 V8 DIESEL, CID:400, Fuel Injection, Aspiration:400, Engine VIN:, Desg:1
  • 2002 GMC Sierra 2500 HD 8.1 V8 GAS, CID:496, Fuel Injection, Aspiration:496, Engine VIN:, Desg:G

WIRING DIAGRAMS FOR 2002 GMC Sierra 2500 HD AUTOMOBILES

OEM drawn wiring diagrams for most 2002 GMC Sierra 2500 HD cars and light trucks sold in the U.S.

2002 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2002 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

Components on diagram:
  • Radio
  • Remote Playback Device CD Player
  • 2002 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2002 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Instrument Panel Cluster
  • 2002 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2002 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • 1-2 Shift Solenoid Valve
  • Torque Converter Clutch Pulse Width Modulation Solenoid Valve
  • 2-3 Shift Solenoid Valve
  • Powertrain Control Module
  • Automatic Transmission
  • 2002 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2002 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Horn Relay
  • Body Control Module
  • Horn Switch
  • Horn Right
  • 2002 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2002 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Radio
  • Body Control Module
  • Window Switch-LR
  • RAP #1 Relay
  • 2002 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2002 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Backup Lamp Switch
  • Park/Neutral Position Switch
  • Ambient Air Temperature Sensor
  • Inside Rearview Mirror
  • Outside Rearview Mirror-Driver
  • 2002 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2002 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Heated Seat Assembly-Driver
  • Window/Door Lock Switch-Driver
  • 2002 GMC Sierra 2500 HD  6.6 V8 DIESEL Wiring Diagram2002 GMC Sierra 2500 HD 6.6 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Throttle Actuator Control Module
  • Cruise Control Module
  • Turn/Hazard Flasher
  • Stoplamp Switch
  • Turn Signal Multifunction Switch
  • 2002 GMC Sierra 2500 HD  6.0 V8 GAS Wiring Diagram2002 GMC Sierra 2500 HD 6.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • 2002 GMC Sierra 2500 HD  8.1 V8 GAS Wiring Diagram2002 GMC Sierra 2500 HD 8.1 V8 GAS Wiring Diagram

    Components on diagram:
  • Starter Solenoid
  • Battery
  • Starter Relay
  • Ignition Switch
  • Starter
  • CLICK HERE TO GET FULL ACCESS TO 2002 GMC Sierra 2500 HD WIRING DIAGRAMS!

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

    Click here to view more details about 2008 GMC Sierra 2500 HD Grille Assembly2008 GMC Sierra 2500 HD Grille Assembly, With emblem provision and bar grille insert; A high quality, direct fit OE replacement grille assembly..

    Source: Auto Body Parts Store

    $120.00

    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 2009 GMC Envoy Door Handle Covers2009 GMC Envoy Door Handle Covers, Door Handle Covers; 4 Door; Without Passenger Side Keyhole, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $36.50

    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 details2001 GMC Sierra 2500 HD Used Air Cleaner Assembly, 6.0, AUTO, AWD w/hi-cap (opt K47), Very Good.

    Source: Used Auto Parts Store

    $104.00

    Click here to view more details2003 GMC Sierra 2500 HD Used Parking Lamp, Driver Side, L, Fog/Driving; (bumper mounted), L., thru 1/2/4 build date, Good.

    Source: Used Auto Parts Store

    $86.00
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