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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+.

Battery Cable And Grounding Point Diagram for 2003 Buick Regal LS 3.8 V6 GASBattery Cable And Grounding Point Diagram for 2003 Buick Regal LS 3.8 V6 GAS

Components on diagram:
  • Battery
  • Fuse Block Underhood
  • Ground G-100
  • Starter Diagram for 2003 Buick Regal LS 3.8 V6 GASStarter Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Starter
  • Fuse Link
  • Starter Solenoid Connector
  • Starter Connection
  • Right Front Side Of Engine Diagram for 2003 Buick Regal GS 3.8 V6 GASRight Front Side Of Engine Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Crankshaft Position (CKP) Sensor
  • Ignition Control Module (ICM)
  • Connector C-110
  • Ignition Control Module (ICM) Wiring Harness
  • 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
  • Right Side Of IP Diagram for 2003 Buick Regal LS 3.8 V6 GASRight Side Of IP Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Daytime Running Lamps Control Module
  • Instrument Panel Wiring Harness
  • Daytime Running Lamps Diode
  • Front Of Rear Compartment Diagram for 2003 Buick Regal LS 3.8 V6 GASFront Of Rear Compartment Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Center High Mounted Stop Lamp
  • Rear Compartment Courtesy Lamp
  • Right Rear Speaker Connector
  • Left Rear Speaker Connector
  • Antenna Cable Diagram for 2003 Buick Regal LS 3.8 V6 GASAntenna Cable Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • Radio
  • Connector C-290
  • Left Side Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GASLeft Side Of Instrument Panel Diagram for 2003 Buick Regal GS 3.8 V6 GAS

    Components on diagram:
  • Headlamp Switch
  • Remote Control Door Lock Receiver
  • Instrument Panel Cluster (IPC)
  • Left Side Of Rear Window, Radio Noise Suppressor Diagram for 2003 Buick Regal LS 3.8 V6 GASLeft Side Of Rear Window, Radio Noise Suppressor Diagram for 2003 Buick Regal LS 3.8 V6 GAS

    Components on diagram:
  • RF Filter
  • Connector C-3
  • Rear Window Defogger Grid Connector
  • Radio Noise Supressor Ground
  • 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 details1997 Buick Regal Cylinder Head Gasket Set, First design; Includes molded rubber valve cover gaskets and premium valve stem seals; Intake manifold gasket, head bolts and exhaust pipe flange not included; A high quality, direct fit OE replacement cylinder head gasket set; Head bolt replacement required; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $193.09

    Click here to view more details about 1996 Buick Regal Radiator1996 Buick Regal Radiator.

    Source: Auto Body Parts Store

    $88.15

    Click here to view more details2011 Buick Regal 18" x 8" Alloy Wheel, Alloy Wheel; 18 X 8; 42MM Offset; 5 Double Spokes; 5 Lug; 120MM BP; All Painted Silver Metallic, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $121.45

    Click here to view more details1985 Buick Regal V6, 3.8 L, 231 CID Rebuilt Engine, RWD, 14 bolt pan, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,299.00

    Click here to view more details1993 Buick Regal Used Exhaust Manifold, 6-231 (3.8L), L. (Fr), Very Good.

    Source: Used Auto Parts Store

    $80.00

    Click here to view more details1994 Buick Regal Used Harmonic Balancer, 6-191 (3.1L), Very Good.

    Source: Used Auto Parts Store

    $85.00
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