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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  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 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:
  • Rear Window Defogger Grid
  • Liftgate Module
  • Heater/Vent/Air Conditioning Control Module
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Liftgate Ajar Switch
  • Liftgate Module
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 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 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
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 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 XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Automatic Transmission Shift Lock Actuator
  • Ignition Lock Cylinder Control Actuator
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Transfer Case Shift Control Module
  • Transfer Case Encoder Motor
  • Service 4 Wheel Drive/All Wheel Drive
  • 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 details2009 GMC Envoy Antenna, 1-section mast; 2100 mm cable; 370 mm extension; Electronically amplified; A high quality universal windscreen mount antenna; May require modification or other adjustment to your vehicle upon installation; With 3 years limited CertifiedXL warranty..

    Source: Auto Body Parts Store

    $17.11

    Click here to view more details about 2002 GMC Envoy Fuel Pump2002 GMC Envoy Fuel Pump, A high quality, direct fit OE replacement fuel pump assembly..

    Source: Auto Body Parts Store

    $187.12

    Click here to view more details2009 GMC Envoy 20" x 8" Alloy Wheel, Alloy Wheel; 20 X 8; 46MM Offset; 6 Spokes; 6 Lug; 5 Inch BP; Dark PVD Chrome Aftermarket, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $300.45

    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 A/C Compressor, 4.2, AUTO, 4X2 4.2L, 2 pin eng harness connection, Very Good.

    Source: Used Auto Parts Store

    $132.00
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