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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 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 1990 Buick Regal automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 1990 Buick Regal

  • 1990 Buick Regal Custom 3.1 V6 GAS, CID:189, Fuel Injection, Aspiration:189, Engine VIN:, Desg:T
  • 1990 Buick Regal Custom 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L
  • 1990 Buick Regal Limited 3.1 V6 GAS, CID:189, Fuel Injection, Aspiration:189, Engine VIN:, Desg:T
  • 1990 Buick Regal Limited 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:L

WIRING DIAGRAMS FOR 1990 Buick Regal AUTOMOBILES

OEM drawn wiring diagrams for most 1990 Buick Regal cars and light trucks sold in the U.S.

1990 Buick Regal Limited 3.1 V6 GAS Wiring Diagram1990 Buick Regal Limited 3.1 V6 GAS Wiring Diagram

Components on diagram:
  • A/C Compressor Control Relay
  • Power Steering Pressure Switch
  • Heater And A/C Control Assembly
  • A/C Compressor Clutch
  • A/C Low Pressure Switch
  • 1990 Buick Regal Limited 3.1 V6 GAS Wiring Diagram1990 Buick Regal Limited 3.1 V6 GAS Wiring Diagram

    Components on diagram:
  • Fuel Tank Unit
  • RH Safety Belt Lap Retractor Solenoid
  • RH Safety Belt Shoulder Retractor Solenoid
  • Power Antenna Relay
  • LH Backup Light
  • 1990 Buick Regal Limited 3.8 V6 GAS Wiring Diagram1990 Buick Regal Limited 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Vehicle Speed Sensor
  • Instrument Cluster
  • Cruise Control Module
  • Passive Restraint Control Module
  • Electronic Control Module
  • 1990 Buick Regal Limited 3.8 V6 GAS Wiring Diagram1990 Buick Regal Limited 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Blower
  • A/C Valve Vacuum Actuator
  • Heater Vacuum Actuator
  • Recirculation Valve Vacuum Actuator
  • Bi-Level Valve Vacuum Actuator
  • 1990 Buick Regal Limited 3.1 V6 GAS Wiring Diagram1990 Buick Regal Limited 3.1 V6 GAS Wiring Diagram

    Components on diagram:
  • RH License Light
  • LH Rear Marker Light
  • RH Rear Marker Light
  • LH Tail Stop Turn Light
  • RH Tail Stop Turn Light
  • 1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Cigar Lighter
  • Luggage Compartment Light
  • Underhood Light
  • RH Vanity Mirror Light
  • 1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Dome Light
  • RH Front Door Jamb Switch
  • RH Rear Door Jamb Switch
  • LH Rear Door Jamb Switch
  • Inside Lighted Mirror Assembly
  • 1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Passive Restraint Control Module
  • Electronic Control Module
  • Key Cylinder Light
  • Driver's Door Latch Switch
  • Passenger Door Latch Switch
  • 1990 Buick Regal Custom 3.1 V6 GAS Wiring Diagram1990 Buick Regal Custom 3.1 V6 GAS Wiring Diagram

    Components on diagram:
  • RH Front Window Switch
  • LH Front Window Switch
  • LH Front Window Motor
  • 1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram1990 Buick Regal Custom 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Rear Defogger Timer Relay
  • Rear Defogger
  • Heater And A/C Control Assembly
  • CLICK HERE TO GET FULL ACCESS TO 1990 Buick Regal WIRING DIAGRAMS!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details1999 Buick Regal Fuel Tank, 33.25 in. L x 27.75 in. W; A high quality, direct fit OE replacement fuel tank; Features all-zinc external layer, combined zinc and iron mid-section, and pure steel core; Its multi-layered construction is designed to withstand corrosion-inducing circumstances such as saltwater or moisture; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $194.22

    Click here to view more details about 1997 Buick Regal Radiator1997 Buick Regal Radiator.

    Source: Auto Body Parts Store

    $90.98

    Click here to view more details about 2004 Buick Regal Power Door Mirror, Passenger Side2004 Buick Regal Power Door Mirror, Passenger Side, PASSENGER SIDE POWER DOOR MIRROR, WITH HEATED GLASS, WITHOUT DIMMER, 5 WIRE TYPE, PAINT TO MATCH, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $74.54

    Click here to view more details1982 Buick Regal V6, 4.3 L, 260 CID Rebuilt Engine, May Use 301, 77-81 As A Direct Interchange., Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

    $1,598.00

    Click here to view more details1995 Buick Regal Used Ignition Switch W/Key, Without FLOOR CONSOLE, Very Good.

    Source: Used Auto Parts Store

    $61.00

    Click here to view more details2011 Buick Regal Used Air Flow Meter/Sensor, 2.2, AUTO, FWD, Very Good.

    Source: Used Auto Parts Store

    $65.00
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