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 2003 GMC Envoy 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 2003 GMC Envoy automobile. Try the Automotix DIY solution today!
DIY REPAIR SAMPLES > CONTINUE EXPLORING >

We have info for following modifications of 2003 GMC Envoy

  • 2003 GMC Envoy 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
  • 2003 GMC Envoy XL 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
  • 2003 GMC Envoy XL 5.3 V8 GAS, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:P

WIRING DIAGRAMS FOR 2003 GMC Envoy AUTOMOBILES

OEM drawn wiring diagrams for most 2003 GMC Envoy cars and light trucks sold in the U.S.

2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

Components on diagram:
  • Manifold Absolute Pressure Sensor
  • Intake Air Temperature Sensor
  • Throttle Actuator Control Throttle Body
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Throttle Actuator Control Module
  • Ignition Coil 3
  • Ignition Coil 5
  • Ignition Coil 4
  • Ignition Coil 1
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Headlamp Leveling Switch
  • Headlamp Leveling Actuator -Left
  • Headlamp Leveling Actuator -Right
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Park Lamp Relay
  • Body Control Module
  • Park/Turn Signal Lamp -Right Front
  • Park/Turn Signal Lamp -Left Front
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Cargo Lamp
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Multifunction Indicator Lamp
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Window Lockout Switch
  • Body Control Module
  • Driver Door Module
  • Window Motor -Left Rear
  • Window Switch -Driver
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Retained Accessory Power Relay
  • Body Control Module
  • Quarter Glass Actuator -Right
  • Quarter Glass Actuator -Left
  • Quarter Glass Switch -Left
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Cooling Fan
  • Powertrain Control Module
  • Fan Relay
  • Hall Sensor
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Powertrain Control Module
  • Air Conditioning Low Pressure Switch
  • Air Conditioning Relay
  • Air Conditioning Refrigerant Pressure Sensor
  • Heater/Vent/Air Conditioning Control Module
  • CLICK HERE TO GET FULL ACCESS TO 2003 GMC Envoy WIRING DIAGRAMS!

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

    Click here to view more details about 2002 GMC Envoy Bumper Cover, Front2002 GMC Envoy Bumper Cover, Front, With grille provision; With holes for fog light and side marker; CAPA certified; A high quality, direct fit OE replacement bumper cover..

    Source: Auto Body Parts Store

    $256.29

    Click here to view more details about 2002 GMC Envoy Door Handle, Rear, Driver Side2002 GMC Envoy Door Handle, Rear, Driver Side, A high quality, direct fit OE replacement door handle..

    Source: Auto Body Parts Store

    $22.06

    Click here to view more details about 2007 GMC Envoy Power Door Mirror, Passenger Side2007 GMC Envoy Power Door Mirror, Passenger Side, PASSENGER SIDE POWER DOOR MIRROR, WITH HEATED GLASS, MANUAL FOLD, WITH TURN SIGNAL LAMP, WITH MEMORY, PAINT TO MATCH, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $120.45

    Click here to view more details2008 GMC Envoy L6, 4.2 L, 258 CID Rebuilt Engine, Inline 6 cylinder DOHC 24 Valve, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,790.00

    Click here to view more details2002 GMC Envoy Used Suspension Compressor/Pump, Air Compressor, 25978169, Very Good.

    Source: Used Auto Parts Store

    $323.00

    Click here to view more details2008 GMC Envoy Used Suspension Compressor/Pump, AIR COMPRESSOR, 25978169, Very Good.

    Source: Used Auto Parts Store

    $354.00
    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 2003 GMC Envoy 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