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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 GS 3.8 V6 GASEngine, Near Starter Diagram for 2003 Buick Regal GS 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 GS 3.8 V6 GASRight Front Frame Rail Behind Front Bumper Diagram for 2003 Buick Regal GS 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
  • Lower Leading Edge Of Front Door Diagram for 2003 Buick Regal GS 3.8 V6 GASLower Leading Edge Of Front Door Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Radio Speaker
  • Radio Speaker, Midrange
  • Radio Speaker, Tweeter
  • Left Center Of Instrument Panel Diagram for 2003 Buick Regal LS 3.8 V6 GASLeft Center Of Instrument Panel Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Instrument Panel Cluster (IPC) Connector
  • Fuel Sender System Diagram for 2003 Buick Regal GS 3.8 V6 GASFuel Sender System Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Fuel Pump
  • Fuel Level Sensor
  • Fuel Tank Pressure (FTP) Sensor
  • Fuel Strainer
  • Springs
  • Behind Brake Pedal Bracket Diagram for 2003 Buick Regal LS 3.8 V6 GASBehind Brake Pedal Bracket Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Stop Lamp Switch
  • Cruise Control Release Switch
  • Connector C-201
  • Stop Lamp Switch Connector
  • Connector C-1
  • Left Side Of Rear Window Diagram for 2003 Buick Regal LS 3.8 V6 GASLeft Side Of Rear Window Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Connector C-2
  • Rear Window Defogger Grid Connector
  • Center Of Left Front Door Trim Panel Diagram for 2003 Buick Regal GS 3.8 V6 GASCenter Of Left Front Door Trim Panel Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Window Master Switch
  • Outside Remote Control Rearview Mirror Switch
  • Outside Remote Rearview Mirror Connector
  • Window Switch Connector
  • Power Roof Systems Component Views Diagram for 2003 Buick Regal LS 3.8 V6 GASPower Roof Systems Component Views Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Sunroof Switch
  • Express Open Connector
  • Sunroof Motor Connector
  • Sunroof Switch Connector
  • Sunroof Limit Switch 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 1996 Buick Regal Hood1996 Buick Regal Hood, A high quality, direct fit OE replacement hood..

    Source: Auto Body Parts Store

    $200.05

    Click here to view more details about 1994 Buick Regal Engine Harmonic Balancer1994 Buick Regal Engine Harmonic Balancer, A high quality, direct fit OE replacement harmonic balancer; With limited lifetime warranty..

    Source: Auto Body Parts Store

    $32.36

    Click here to view more details2004 Buick Regal Head Light Assembly, Driver Side, DRIVER SIDE HEAD LIGHT ASSEMBLY, WITH CORNERING LIGHT, (OE SERVICE RE PLACEMENT FOR WITHOUT CORNERING LIGHT), , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $62.45

    Click here to view more details1976 Buick Regal V6, 3.8 L, 231 CID Rebuilt Engine, Odd Fire, without smog., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,491.00

    Click here to view more details2011 Buick Regal Used Bumper Cover, Front, 13243355-FAF. (CXL), CANADA BUILT (OPT OSH), Very Good.

    Source: Used Auto Parts Store

    $437.00

    Click here to view more details1990 Buick Regal Used Air Flow Meter/Sensor, (6-231, 3.8L), Very Good.

    Source: Used Auto Parts Store

    $69.00
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