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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+.

Right Rear Side Of Engine Compartment Diagram for 2003 Buick Regal GS 3.8 V6 GASRight Rear Side Of Engine Compartment Diagram for 2003 Buick Regal GS 3.8 V6 GAS

Components on diagram:
  • Brake Fluid Level Switch
  • Electronic Brake Control Module
  • Brake Pressure Modulator
  • Electronic Brake Control Module (EBCM) Connector
  • Top Right Of Engine Diagram for 2003 Buick Regal GS 3.8 V6 GASTop Right Of Engine Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Ignition Coils
  • Ignition Control Module (ICM)
  • Ground G-111
  • Ignition Control Module (ICM) Wiring Harness
  • VSS And Engine Oil Pressure Switch Diagram for 2003 Buick Regal LS 3.8 V6 GASVSS And Engine Oil Pressure Switch Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Vehicle Speed Sensor (VSS)
  • Power Steering Pump
  • Engine Oil Pressure (EOP) Switch
  • Rack And Pinion Assembly
  • 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:
  • Power Drop Connector
  • Connector C-206
  • Right Side Of IP, Harness Routing View Diagram for 2003 Buick Regal LS 3.8 V6 GASRight Side Of IP, Harness Routing View Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Vacuum/Electric Solenoid
  • Blower Motor Control Module
  • Blower Motor Resistor
  • Blower Motor
  • I/P Fuse Block
  • Lower Left Side Of Steering Column Diagram for 2003 Buick Regal GS 3.8 V6 GASLower Left Side Of Steering Column Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Data Link Connector
  • Splice Pack SP-205
  • 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:
  • Rear Window Defogger Relay
  • Rear Compartment Lid Release Relay
  • Retained Accessory Power (RAP) Relay
  • Instrument Panel Courtesy Lamp
  • Haedlamp Relay
  • Power Seat Subsystems Diagram for 2003 Buick Regal GS 3.8 V6 GASPower Seat Subsystems Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Seat Belt Switch
  • Seat Adjuster Switch
  • Connector C-311
  • Connector C-312
  • Seat Adjuster Motor Assembly
  • Inside Left Side Of Instrument Panel Compartment Diagram for 2003 Buick Regal LS 3.8 V6 GASInside Left Side Of Instrument Panel Compartment Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Rear Compartment Lid Release Switch
  • 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 details1996 Buick Regal Shock and Strut Mount, Front, Includes lower spring seat and bearing; A high quality, direct fit OE replacement strut mount bearing plate; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $11.46

    Click here to view more details1994 Buick Regal Antenna, A high quality OE replacement radio antenna; With 1-year or 12,000-mile AC Delco limited warranty..

    Source: Auto Body Parts Store

    $32.17

    Click here to view more details1987 Buick Regal Radiator, Radiator; 4.4LTR; 5.0LTR; V8; Except HD Cooling, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $92.50

    Click here to view more details1978 Buick Regal V6, 3.8 L, 231 CID Rebuilt Engine, Even fire, without smog., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,299.00

    Click here to view more details2000 Buick Regal Used Exhaust Manifold, 6-191 (3.1L), L. (Fr), Very Good.

    Source: Used Auto Parts Store

    $77.00

    Click here to view more details2004 Buick Regal Used Exhaust Manifold, 3.8L, VIN K, L. (FR), Very Good.

    Source: Used Auto Parts Store

    $96.00
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