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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Buick Regal car and truck repair procedures including Buick 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 Buick Regal automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2003 Buick Regal

  • 2003 Buick Regal GS 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:1
  • 2003 Buick Regal LS 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:K

COMPONENT LOCATION DIAGRAMS FOR 2003 Buick Regal AUTOMOBILES

Component location diagrams for most 2003 Buick Regal cars and light trucks sold in the U.S. from 1990+.

Engine, Near Starter Diagram for 2003 Buick Regal LS 3.8 V6 GASEngine, Near Starter Diagram for 2003 Buick Regal LS 3.8 V6 GAS

Components on diagram:
  • Knock Sensor
  • Engine Oil Pressure Sensor
  • Fusible Link
  • Connector C-171
  • Ground G-113
  • Right Front Frame Rail Behind Front Bumper Diagram for 2003 Buick Regal LS 3.8 V6 GASRight Front Frame Rail Behind Front Bumper Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Fuel Pump Resistor
  • Engine Wiring Harness
  • Vehicle Fuel Tank Diagram for 2003 Buick Regal LS 3.8 V6 GASVehicle Fuel Tank Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Connector C-405
  • Center Of Floor Console Diagram for 2003 Buick Regal GS 3.8 V6 GASCenter Of Floor Console Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Performance Shift Switch
  • Connector C-325
  • Automatic Transmission Control Position Indicator Bulb
  • Automatic Transmission Control Switch (BTSI)
  • Behind Right Side Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GASBehind Right Side Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Power Drop Connector
  • Connector C-206
  • Lower Left Side Of Steering Column Diagram for 2003 Buick Regal LS 3.8 V6 GASLower Left Side Of Steering Column Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Data Link Connector
  • Splice Pack SP-205
  • Left Front Of Vehicle Forward Lamp To Headlamp Diagram for 2003 Buick Regal LS 3.8 V6 GASLeft Front Of Vehicle Forward Lamp To Headlamp Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Headlamp Assembly
  • Headlamp Assembly Connector
  • Top Of Instrument panel, Base Of Windshield Diagram for 2003 Buick Regal GS 3.8 V6 GASTop Of Instrument panel, Base Of Windshield Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Sun Load Temperature Sensor
  • Daytime Running Lamp (DRL) Ambient Light Sensor
  • Behind Right Side Of Instrument Panel Diagram for 2003 Buick Regal LS 3.8 V6 GASBehind Right Side Of Instrument Panel Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Rear Window Defogger Relay
  • Rear Compartment Lid Release Relay
  • Retained Accessory Power (RAP) Relay
  • Instrument Panel Courtesy Lamp
  • Haedlamp Relay
  • Rear Compartment Lid Diagram for 2003 Buick Regal LS 3.8 V6 GASRear Compartment Lid Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Rear Compartment Lid Lock Release Actuator
  • Rear Compartment Key Cylinder
  • Rear Compartment Lid Lock Ajar Switch
  • Rear Compartment Lid Lock Ajar Switch Connector
  • Rear Compartment Lid Lock Release Actuator Connector
  • CLICK HERE TO GET FULL ACCESS TO 2003 Buick Regal PARTS/COMPONENTS LOCATION DIAGRAMS!

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

    Click here to view more details about 1999 Buick Regal Tail Light, Passenger Side1999 Buick Regal Tail Light, Passenger Side, Bulbs not included; DOT and SAE approved; A high quality, direct fit OE replacement tail light..

    Source: Auto Body Parts Store

    $164.77

    Click here to view more details about 1995 Buick Regal Oxygen Sensor1995 Buick Regal Oxygen Sensor.

    Source: Auto Body Parts Store

    $23.08

    Click here to view more details1987 Buick Regal Driver Side Front Painted Bumper Guard Without Cushion For 2-Door Models, Driver Side Front Painted Bumper Guard Without Cushion For 2-Door Models, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $49.50

    Click here to view more details about 1980 Buick Regal V8, 4.9 L, 301 CID Rebuilt Engine1980 Buick Regal V8, 4.9 L, 301 CID Rebuilt Engine, Pontiac built, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,453.00

    Click here to view more details2011 Buick Regal Used Ignition Switch W/Key, Without keyless ignition, Very Good.

    Source: Used Auto Parts Store

    $85.00

    Click here to view more details1995 Buick Regal Used Bumper Bar, Rear, 4DR, White, BASE Sdn, w/ foam, Very Good.

    Source: Used Auto Parts Store

    $144.00
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