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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
  • 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:
  • Turn Signal/Hazard Flasher Module
  • Throttle Actuator Control Module
  • Stop Lamp Switch
  • Powertrain Control Module
  • Center High Mounted Stop Lamp
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

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

    Components on diagram:
  • Mode Actuator
  • Recirculation Actuator
  • Defrost Actuator
  • Heater/Vent/Air Conditioning Control Module
  • Air Temperature Actuator -Left
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 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  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Mode Actuator
  • Recirculation Actuator
  • Defrost Actuator
  • Heater/Vent/Air Conditioning Control Module
  • Air Temperature Actuator -Left
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Park Brake Switch
  • Brake Fluid Level Switch
  • Brake Indicator
  • Body Control Module
  • Electronic Brake Control Module
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Stop Lamp Switch
  • Automatic Transmission Shift Lock Actuator
  • 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 details2005 GMC Envoy Door Handle, Rear, Passenger Side, Without keyhole; A high quality, OE replacement door handle; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $14.82

    Click here to view more details about 2004 GMC Envoy Corner Light, Driver Side2004 GMC Envoy Corner Light, Driver Side.

    Source: Auto Body Parts Store

    $32.20

    Click here to view more details about 2000 GMC Envoy Manual Door Mirror, Passenger Side2000 GMC Envoy Manual Door Mirror, Passenger Side, PASSENGER SIDE MANUAL DOOR MIRROR, FOLDING, BLACK TEXTURE, BELOW EYELINE STYLE, LARGE 6" X 7" GLASS, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $53.10

    Click here to view more details2005 GMC Envoy V8, 5.3 L, 322 CID Rebuilt Engine, 5.3 CHEVY,GMC, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,866.00

    Click here to view more details2006 GMC Envoy Used Rear Axle Assembly, 4.2, AUTO, RWD 4.2L, 17 whl, 3.42 ratio, Very Good.

    Source: Used Auto Parts Store

    $447.00

    Click here to view more details2006 GMC Envoy Used Exhaust Manifold, 4.2L, AFTERMARKET.

    Source: Used Auto Parts Store

    $165.00
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