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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+.

Starter Diagram for 2003 Buick Regal GS 3.8 V6 GASStarter Diagram for 2003 Buick Regal GS 3.8 V6 GAS

Components on diagram:
  • Starter Assembly
  • Engine Oil Level Switch
  • Knock Sensor (KS) 1
  • Positive Battery Cable
  • Ground G-113
  • Engine Harness To Knock Sensor Diagram for 2003 Buick Regal LS 3.8 V6 GASEngine Harness To Knock Sensor Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Connector C-125
  • Knock Sensor (KS) 2
  • Knock Sensor (KS) Connector
  • Left Side Of Transmission Diagram for 2003 Buick Regal LS 3.8 V6 GASLeft Side Of Transmission Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Park/Neutral Position Switch
  • Connector C-113
  • Connector C-200
  • Engine Wiring Harness
  • Connector C-1
  • Center Console Diagram for 2003 Buick Regal LS 3.8 V6 GASCenter Console Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Cigar Lighter
  • Traction Control Switch
  • Auxiliary Power Outlet
  • Heated Seat Switch
  • Connector C-240
  • Lower Left Front Of Vehicle Diagram for 2003 Buick Regal GS 3.8 V6 GASLower Left Front Of Vehicle Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Fog Lamp
  • Lower Left Of Instrument Panel Diagram for 2003 Buick Regal LS 3.8 V6 GASLower Left Of Instrument Panel Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Fog Lamp Switch
  • Driver Information Display
  • Fog Lamp Switch Connector
  • Driver Information Display Switch 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:
  • Door Courtesy Lamp
  • Door Courtesy Lamp Connector
  • Radio Front Door Speaker Connector
  • Radio Front Door Speaker
  • 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
  • Rear Door Panel Diagram for 2003 Buick Regal GS 3.8 V6 GASRear Door Panel Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Rear Door Lock Switch
  • Rear Door Lock Switch Connector
  • Right Side Of Passenger Compartment Near Rocker Inner Panel Diagram for 2003 Buick Regal GS 3.8 V6 GASRight Side Of Passenger Compartment Near Rocker Inner Panel Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Inflatable Restraint Sensing And Diagnostic Module
  • Instrument Panel Wiring Harness
  • Body Wiring Harness
  • Connector C-1
  • Connector C-2
  • 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 Door Handle, Front, Driver Side1996 Buick Regal Door Handle, Front, Driver Side, With keyhole; A high quality, OE replacement door handle; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $18.21

    Click here to view more details about 2004 Buick Regal Bumper Reinforcement, Front2004 Buick Regal Bumper Reinforcement, Front, A high quality, direct fit OE replacement bumper reinforcement; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $45.75

    Click here to view more details1987 Buick Regal 16" x 4" Steel Wheel, Steel Wheel; 16 X 4; Spare; 5 Lug; 4.75 Inch BP; Ident 9590927; Black, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $65.50

    Click here to view more details1998 Buick Regal LS V6, 3.8 L, 231 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,842.00

    Click here to view more details1984 Buick Regal Used Wiper Motor Front, Without PULSE WIPER; 2 WIRE ARMATURE, Very Good.

    Source: Used Auto Parts Store

    $86.00

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

    Source: Used Auto Parts Store

    $69.00
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