Auto Parts Search


      Over 40 million used auto parts online. Shop online for auto and truck parts and save up to 75%

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!
Help me findSearch
Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 GMC K2500 Pickup 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 1990 GMC K2500 Pickup automobile. Try the Automotix DIY solution today!
DIY REPAIR SAMPLES > CONTINUE EXPLORING >

We have info for following modifications of 1990 GMC K2500 Pickup

  • 1990 GMC K2500 Pickup Sierra 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
  • 1990 GMC K2500 Pickup Sierra 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
  • 1990 GMC K2500 Pickup Sierra 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
  • 1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:C
  • 1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:J
  • 1990 GMC K2500 Pickup Sierra XC 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:Z
  • 1990 GMC K2500 Pickup Sierra XC 5.0 V8 GAS, CID:305, Fuel Injection, Aspiration:305, Engine VIN:, Desg:H
  • 1990 GMC K2500 Pickup Sierra XC 5.7 V8 GAS, CID:350, Fuel Injection, Aspiration:350, Engine VIN:, Desg:K
  • 1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:C
  • 1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL, CID:379, Fuel Injection, Aspiration:379, Engine VIN:, Desg:J

WIRING DIAGRAMS FOR 1990 GMC K2500 Pickup AUTOMOBILES

OEM drawn wiring diagrams for most 1990 GMC K2500 Pickup cars and light trucks sold in the U.S.

1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL Wiring Diagram1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL Wiring Diagram

Components on diagram:
  • Auxiliary Cooling Fan Temperature Switch
  • Auxiliary Cooling Fan
  • Auxiliary Cooling Fan Relay
  • 1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL Wiring Diagram1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Fuel Pump
  • Fuel Pump Relay
  • Fuel Pump Oil Pressure Switch
  • Fuel Tank Sender
  • Assembly Line Diagnostic Link (ALDL) Connector
  • 1990 GMC K2500 Pickup Sierra 5.0 V8 GAS Wiring Diagram1990 GMC K2500 Pickup Sierra 5.0 V8 GAS Wiring Diagram

    Components on diagram:
  • Fuel Pump Relay
  • Idle Air Control
  • Fuel Pump Oil Pressure Switch
  • Electronic Control Module Connectors
  • Hot Fuel Handling Module
  • 1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL Wiring Diagram1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • LH Front Speaker
  • RH Front Speaker
  • AM radio Unit
  • 1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL Wiring Diagram1990 GMC K2500 Pickup Sierra 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Convenience Center
  • Cargo Lamp Switch
  • Cargo Lamp
  • Panel And Interior Lamp Control Switch
  • 1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL Wiring Diagram1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Glow Plug Controller
  • Right Bank Glow Plug
  • Left Bank Glow Plug
  • 1990 GMC K2500 Pickup Sierra XC 4.3 V6 GAS Wiring Diagram1990 GMC K2500 Pickup Sierra XC 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Park Brake Switch
  • Headlamp Dimmer Switch
  • Right Hand Park and Turn Signal Lamp
  • Left Hand Park And Turn Signal Lamp
  • 1990 GMC K2500 Pickup Sierra 4.3 V6 GAS Wiring Diagram1990 GMC K2500 Pickup Sierra 4.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Park Brake Switch
  • Right Side Marker Lamp
  • Left Side Marker Lamp
  • Headlamp Dimmer Switch
  • 1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL Wiring Diagram1990 GMC K2500 Pickup Sierra XC 6.2 V8 DIESEL Wiring Diagram

    Components on diagram:
  • Speed Sensor
  • Water In Fuel Sensor
  • Low Coolant Module
  • Oil Pressure Sender
  • Brake Pressure Warning Switch
  • 1990 GMC K2500 Pickup Sierra 5.7 V8 GAS Wiring Diagram1990 GMC K2500 Pickup Sierra 5.7 V8 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Right Hand License Lamp
  • Left Hand License Lamp
  • CLICK HERE TO GET FULL ACCESS TO 1990 GMC K2500 Pickup WIRING DIAGRAMS!

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

    Click here to view more details about 2000 GMC Yukon Door Handle, Front, Passenger Side2000 GMC Yukon Door Handle, Front, Passenger Side, With keyhole; A high quality, OE replacement door handle; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $18.05

    Click here to view more details about 2004 GMC Sonoma Third Brake Light2004 GMC Sonoma Third Brake Light, With clear lens; FMVSS-108 compliant; DOT and SAE approved; A high quality, direct fit OE replacement third brake light..

    Source: Auto Body Parts Store

    $17.53

    Click here to view more details2008 GMC Canyon 15" Wheel Skin ABS, Impostor Wheel Skins; 4 Piece Set; Chrome Finish; 5 Flat Spokes With Dimpled; ABS; 15 Inch, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $47.45

    Click here to view more details about 1993 GMC K2500 Pickup Sierra XC V6, 4.3 L, 262 CID Rebuilt Engine1993 GMC K2500 Pickup Sierra XC V6, 4.3 L, 262 CID Rebuilt Engine, Fuel injected, roller cam, no balance shaft, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,251.00

    Click here to view more details2000 GMC K2500 Pickup Used Air Flow Meter/Sensor, 5.7, AUTO, 4X4, Very Good.

    Source: Used Auto Parts Store

    $77.00

    Click here to view more details1994 GMC K2500 Pickup Used A/C Compressor, 6.5, AUTO, 4X2, Very Good.

    Source: Used Auto Parts Store

    $164.00
    More parts
    Help me findSearch
    Auto Repair Quick Search
    Help me find
    Search DIY repair manuals by VIN...
    Vehicle Identification Number is a unique serial number used by the automotive industry to identify individual motor vehicles

    Find out what info we have for your vehicle

    Get the Complete Technical Service Bulletins!
    Get the Complete Technical Service Bulletins!Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 1990 GMC K2500 Pickup vehicle.
    Access the Complete guide!
    Need To Fix Your Car or Truck?
    Save Money With Free Car Insurance Quote
    FREE car insurance quote
    Enter Zip Code:
    GOT A WEBSITE?Make money with Automotix

    Make money with Automotix Partner Program.

    Learn more

    Auto Repair Quick Search
    Help me find