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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 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
  • EGR, Fuel Injectors, Generator, Heated Oxygen Sensor Diagram for 2003 Buick Regal LS 3.8 V6 GASEGR, Fuel Injectors, Generator, Heated Oxygen Sensor Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Generator
  • Exhaust Gas Recirculation (EGR) Valve
  • Generator Connector
  • Fuel Injector Connector 2
  • Fuel Injector Connector 4
  • Right Side Of IP, Harness Routing View Diagram for 2003 Buick Regal GS 3.8 V6 GASRight Side Of IP, Harness Routing View Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Vacuum/Electric Solenoid
  • Blower Motor Control Module
  • Blower Motor Resistor
  • Blower Motor
  • I/P Fuse Block
  • Center Console Diagram for 2003 Buick Regal GS 3.8 V6 GASCenter Console Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Cigar Lighter
  • Traction Control Switch
  • Auxiliary Power Outlet
  • Heated Seat Switch
  • Connector C-240
  • Dome Lamp Component View Diagram for 2003 Buick Regal LS 3.8 V6 GASDome Lamp Component View Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Dome Lamp
  • Dome Lamp Connector
  • Vehicle Communications Interface Module Diagram for 2003 Buick Regal LS 3.8 V6 GASVehicle Communications Interface Module Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Vehicle Communications Interface Module
  • Body Wiring Harness
  • Connector C-1
  • Connector C-2
  • Cellular Telephone Antenna Connection
  • Left Center Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GASLeft Center Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Instrument Panel Cluster (IPC) Connector
  • 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
  • Left Front Door Diagram for 2003 Buick Regal LS 3.8 V6 GASLeft Front Door Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Window Motor
  • Window Motor Connector
  • Grommet P-500
  • 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, Driver Side1999 Buick Regal Tail Light, Driver Side.

    Source: Auto Body Parts Store

    $118.77

    Click here to view more details about 1990 Buick Regal Fog Light, Driver Or Passenger Side1990 Buick Regal Fog Light, Driver Or Passenger Side.

    Source: Auto Body Parts Store

    $45.28

    Click here to view more details2000 Buick Regal Wheel Center Cap, WHEEL CENTER CAP, CHROME , , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $23.50

    Click here to view more details1993 Buick Regal Custom V6, 3.1 L, 189 CID Rebuilt Engine, FWD, without cam sensor, flat lifters., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,445.00

    Click here to view more details1980 Buick Regal Used Exhaust Manifold, 8-305 (5.0L), R., Very Good.

    Source: Used Auto Parts Store

    $79.00

    Click here to view more details1989 Buick Regal Used A/C Compressor, V6, 3.1L, CHECK ID, Very Good.

    Source: Used Auto Parts Store

    $139.00
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