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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!
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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 XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

Components on diagram:
  • Windshield Washer Fluid Level Switch
  • Battery
  • Cooling Fan
  • Air Conditioning Low Pressure Switch
  • Horn Assembly
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Body Control Module
  • Fog Lamp Relay
  • Front Fog Lamp Switch
  • Rear Fog Lamp
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Horn Relay
  • Body Control Module
  • Horn
  • Horn Assembly
  • Turn Signal/Multifunction Switch
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Driver Door Module
  • Memory Seat Switch -Driver
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Seat Recline Motor -Driver
  • Seat Rear Vertical Motor -Driver
  • Passenger Seat
  • Seat Adjuster Switch -Driver
  • Seat Horizontal Motor -Driver
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Seat Lumbar Position Sensor -Passenger
  • Seat Lumbar Vertical Motor -Passenger
  • Seat Lumbar Horizontal Motor -Passenger
  • Memory Seat Module -Passenger
  • Lumbar Adjuster Switch -Passenger
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Seat belt Indicator
  • Inflatable Restraint Sensing And Diagnostic Module
  • Seat Belt Switch -Driver
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Blower Motor Control Module
  • Blower Motor
  • Coolant Bypass Valve
  • Heater/Vent/Air Conditioning Control Module
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Air Suspension Inflator Switch
  • Air Suspension Compressor Assembly
  • Air Suspension Sensor -Right Rear
  • Air Suspension Sensor -Left Rear
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • 1-2 Shift Solenoid Valve
  • Torque Converter Clutch Solenoid Valve
  • Powertrain Control Module
  • Automatic Transmission
  • Automatic Transmission Fluid Temperature Sensor
  • 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 2006 GMC Envoy Header Panel2006 GMC Envoy Header Panel, A high quality, direct fit OE replacement header panel; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $38.09

    Click here to view more details about 2005 GMC Envoy Bumper Cover, Rear2005 GMC Envoy Bumper Cover, Rear.

    Source: Auto Body Parts Store

    $425.98

    Click here to view more details2009 GMC Envoy Radiator, Radiator; 5.3LTR; Fits Both Codes CAX And CAY, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $144.50

    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 details2006 GMC Envoy Used Exhaust Manifold, 4.2L, AFTERMARKET.

    Source: Used Auto Parts Store

    $165.00

    Click here to view more details2002 GMC Envoy Used Wiper Motor Front, w/moisture sensitive (opt CE1), include linkage, Very Good.

    Source: Used Auto Parts Store

    $70.00
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