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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+.

Lower Center Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GASLower Center Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GAS

Components on diagram:
  • Heater-A/C Control Module
  • Connector C-1
  • Connector C-2
  • Heater-A/C Control Module Connector
  • Lower Front Of Engine Diagram for 2003 Buick Regal GS 3.8 V6 GASLower Front Of Engine Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Starter
  • Knock Sensor (KS)
  • Engine Oil Pressure (EOP) Switch
  • Ground G-100
  • Positive Battery Cable
  • Dome Lamp Component View Diagram for 2003 Buick Regal GS 3.8 V6 GASDome Lamp Component View Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Dome Lamp
  • Dome Lamp Connector
  • Lower Leading Edge Of Front Door Diagram for 2003 Buick Regal LS 3.8 V6 GASLower Leading Edge Of Front Door Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Front Radio Speaker
  • Radio Speaker Connector, Midrange
  • Radio Speaker Connector, Tweeter
  • Bose Speaker Diagram for 2003 Buick Regal GS 3.8 V6 GASBose Speaker Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Body Wiring Harness
  • Radio Rear Bose Speaker
  • Rear Window Panel
  • Rear Door Panel Diagram for 2003 Buick Regal LS 3.8 V6 GASRear Door Panel Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Rear Door Lock Switch
  • Rear Door Lock Switch Connector
  • 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
  • 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
  • Seat Belt Component Views Diagram for 2003 Buick Regal LS 3.8 V6 GASSeat Belt Component Views Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Seat Belt Switch
  • Seat Belt 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 details1995 Buick Regal Coolant Temperature Sensor, 3/8 in. x 18 NPT thread size; Pin type; With 2-prong male terminal; AutoTrust Platinum products are guaranteed to meet or exceed the original manufacturer's standards and quality; <b>Backed by a 5-year unlimited warranty</b>; If the part breaks or is damaged anytime within 5 years from purchase, simply cover shipping and handling and we will send you a new part - even if we have already sent you a new product and it becomes damaged again..

    Source: Auto Body Parts Store

    $7.34

    Click here to view more details2004 Buick Regal Brake Light Switch, Blade type; 6-prong male terminal; A high quality, direct fit OE replacement brake light switch; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $5.59

    Click here to view more details2002 Buick Regal Radiator, Radiator; With SAE Transmission Oil Cooler Fittings, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $118.50

    Click here to view more details about 1985 Buick Regal V8, 5.0 L, 305 CID Rebuilt Engine1985 Buick Regal V8, 5.0 L, 305 CID Rebuilt Engine, Passenger side dipstick, except HO., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,209.00

    Click here to view more details2000 Buick Regal Used Air Flow Meter/Sensor, 3.4, AUTO, FWD 3.4L, Very Good.

    Source: Used Auto Parts Store

    $85.00

    Click here to view more details2011 Buick Regal Used Hood, Brown (CXL), Canada built (opt OSH)(OEM# 13276949), Very Good.

    Source: Used Auto Parts Store

    $431.00
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