2003 GMC Sierra 1500 Component Locations (ONLINE REPAIR MANUALS)

Auto Parts Search


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 Sierra 1500 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 Sierra 1500 automobile. Try the Automotix DIY solution today!
DIY REPAIR SAMPLES > CONTINUE EXPLORING >

We have info for following modifications of 2003 GMC Sierra 1500

  • 2003 GMC Sierra 1500 5.3 V8 FLEX, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:Z
  • 2003 GMC Sierra 1500 4.3 V6 GAS, CID:262, Fuel Injection, Aspiration:262, Engine VIN:, Desg:X
  • 2003 GMC Sierra 1500 4.8 V8 GAS, CID:294, Fuel Injection, Aspiration:294, Engine VIN:, Desg:V
  • 2003 GMC Sierra 1500 5.3 V8 GAS, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:T

COMPONENT LOCATION DIAGRAMS FOR 2003 GMC Sierra 1500 AUTOMOBILES

Component location diagrams for most 2003 GMC Sierra 1500 cars and light trucks sold in the U.S. from 1990+.

I/P, Accessory Switches Diagram for 2003 GMC Sierra 1500  4.8 V8 GASI/P, Accessory Switches Diagram for 2003 GMC Sierra 1500 4.8 V8 GAS

Components on diagram:
  • Instrument Panel
  • Inflatable Restraint IP Module Disable Switch
  • Accessory Switch Housing
  • Inflatable Restraint IP Module Disable Switch Connector
  • Rear Marker Lamps Diagram for 2003 GMC Sierra 1500  5.3 V8 GASRear Marker Lamps Diagram for 2003 GMC Sierra 1500 5.3 V8 GAS

    Components on diagram:
  • Marker Lamp
  • Marker Lamp Connector
  • Tail Lamp Harness
  • Camshaft Position Sensor, Knock Sensor and Oil Pressure Switch Diagram for 2003 GMC Sierra 1500  4.3 V6 GASCamshaft Position Sensor, Knock Sensor and Oil Pressure Switch Diagram for 2003 GMC Sierra 1500 4.3 V6 GAS

    Components on diagram:
  • Knock Sensor
  • Camshaft Position Sensor
  • Engine Oil Pressure Switch
  • Door Panel Diagram for 2003 GMC Sierra 1500  5.3 V8 FLEXDoor Panel Diagram for 2003 GMC Sierra 1500 5.3 V8 FLEX

    Components on diagram:
  • Memory/Heated Seat Switch
  • Speaker Tweeter
  • Memory/Heated Seat Switch Connector
  • Full Engine View Diagram for 2003 GMC Sierra 1500  5.3 V8 GASFull Engine View Diagram for 2003 GMC Sierra 1500 5.3 V8 GAS

    Components on diagram:
  • Throttle Position Sensor
  • Manifold Absolute Pressure Sensor
  • Engine Coolant Temperature Sensor
  • Idle Air Control Valve
  • Throttle Body
  • Manual Transmission Diagram for 2003 GMC Sierra 1500  5.3 V8 FLEXManual Transmission Diagram for 2003 GMC Sierra 1500 5.3 V8 FLEX

    Components on diagram:
  • Backup Lamp Switch
  • NV 4500 Transmission
  • Oxygen Sensor Downstream Connector
  • Oxygen Sensor Upstream Connector
  • Vehicle Speed Connector
  • Engine Oil Pressure Sensor and CMP Sensor Diagram for 2003 GMC Sierra 1500  5.3 V8 GASEngine Oil Pressure Sensor and CMP Sensor Diagram for 2003 GMC Sierra 1500 5.3 V8 GAS

    Components on diagram:
  • Camshaft Position Sensor
  • Engine Oil Pressure Sensor
  • Camshaft Position Sensor Connector
  • I/P Switches Diagram for 2003 GMC Sierra 1500  4.8 V8 GASI/P Switches Diagram for 2003 GMC Sierra 1500 4.8 V8 GAS

    Components on diagram:
  • Headlamp and Panel Dimmer Switch
  • Instrument Panel
  • Automatic Transfer Case Select Switch
  • Cargo/Fog Lamp Switch
  • Headlamp and Panel Dimmer Switch Connector
  • Rear Wheel Position Sensor Diagram for 2003 GMC Sierra 1500  5.3 V8 GASRear Wheel Position Sensor Diagram for 2003 GMC Sierra 1500 5.3 V8 GAS

    Components on diagram:
  • Wheel Position Sensor
  • Manual Transmission Diagram for 2003 GMC Sierra 1500  4.3 V6 GASManual Transmission Diagram for 2003 GMC Sierra 1500 4.3 V6 GAS

    Components on diagram:
  • Vehicle Speed Sensor
  • Backup Lamp Switch
  • Oxygen Sensor Downstream Connector
  • Oxygen Sensor Upstream Connector
  • PTO Relay
  • CLICK HERE TO GET FULL ACCESS TO 2003 GMC Sierra 1500 PARTS/COMPONENTS LOCATION DIAGRAMS!

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

    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 Sierra 1500 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:
    Auto Repair Quick Search
    Help me find