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1991 Buick Regal CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Buick REPAIR SHOPS DON'T WANT YOU TO KNOW

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

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    Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 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 Buick Regal automobile. Try the Automotix DIY solution today!
    DIY REPAIR SAMPLES > CONTINUE EXPLORING >
    Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Buick mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1991 Buick Regal vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

    A/C & HEATER SERVICE PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Buick Regal, Chevrolet Lumina & Monte Carlo, Oldsmobile Cutlass Supreme & Intrigue & Pontiac Grand Prix & 1997-2002 Buick Century & 2000-02 Impala
    Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS

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    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> WHEEL CYLINDER OVERHAUL
    Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS

    • Raise and support vehicle.
    • Remove wheel, drum and brake shoes.
    • Disconnect hydraulic line at wheel cylinder.Do not pull metal line away from cylinder, as this may kink or bend line. Line will separate from cylinder when cylinder is moved away from brake backing plate.
    • Remove wheel cylinder-to-brake plate attaching screws, then the wheel cylinder.
    • Remove boots, pistons, springs and cups from cylinder,Fig. .
    • Clean all parts with brake fluid.
    • Inspect cylinder bore. A scored bore may be honed as long as the diameter is not increased by m...

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    General Motors Corp./Saturn Passenger Cars -> Fuel Filter Replacement -> Except Aveo, Chevette 1.8L Diesel, Corvette, GTO, LaCrosse, Malibu (2004-06) & Malibu Maxx, Vibe, XLR, 2004-05 Corvette & 1998-2002 Metro & Prizm
    Vehicle: 1991 Buick Regal Limited 3.1 V6 GAS

    Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.

    Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

    After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the v...

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    CV AXLE SHAFT, Replace
    Vehicle: 1991 Buick Regal Custom 3.1 V6 GAS

    • Raise and support vehicle, then remove tire and wheel assembly.
    • Remove brake caliper from steering knuckle and suspend caliper assembly.
    • Remove four bolts holding hub/bearing assembly to knuckle.
    • On vehicles equipped with Anti-Lock Brake System (ABS), remove ABS sensor mounting bolt, then position sensor aside to avoid damage.
    • On vehicles equipped with 125C and HM-282 transaxles and right shaft of vehicles with 440-T4 transaxles, separate drive axle from transaxle using axle shaft remover tool No....

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    Alternator, Replace
    Vehicle: 1991 Buick Regal Limited 3.1 V6 GAS

    • Disconnect battery ground cable.
    • Remove drive belt.
    • Remove alternator mounting bolts.
    • Disconnect connector from alternator.
    • Remove nut and B+ terminal from alternator.
    • Remove altern...

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    General Motors Corp./Saturn Cars -> Active Handling System Warning Lamp ->
    Vehicle: 1991 Buick Regal Custom 3.8 V6 GAS

    This lamp should light for a approximately 6-8 seconds when the ignition is turned on as a bulb check. The lamp will also come on as the system is...

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    Heater Hose, Replace -> Inlet -> Outlet
    Vehicle: 1991 Buick Regal Custom 3.8 V6 GAS

    Inlet

    • Drain cooling system into a suitable container.
    • Reposition heater hose inlet clamp at water outlet using hose clamp pliers.
    • Remove heater inlet hose from water outlet.
    • Reposition heater core inlet hose clamp at heater core using hose clamp pliers.
    • Remove hose from vehicle.
    • Reverse procedure to i...

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Buick Regal AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 1991 Buick Regal Limited 3.1 V6 GAS

    Care should be taken to avoid twisting or bending tensioner when applying torque. Damage to belt tensioner may occur.

    • Remove belt guard.
    • Rotate tensio...

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 1991 Buick Regal AUTOMOBILES

    Component location diagrams for most 1991 Buick Regal cars and light trucks sold in the U.S. from 1990+.

    Front Of Engine Compartment Diagram for 1991 Buick Regal Limited 3.8 V6 GASFront Of Engine Compartment Diagram for 1991 Buick Regal Limited 3.8 V6 GAS

    Components on diagram:
  • Primary Cooling Fan
  • Secondary Coolant Fan
  • Splice S-105
  • LH Top Of Engine Diagram for 1991 Buick Regal Custom 3.8 V6 GASLH Top Of Engine Diagram for 1991 Buick Regal Custom 3.8 V6 GAS

    Components on diagram:
  • Idle Air Control Motor
  • Throttle Position Sensor
  • Fuel Injector
  • Mass Airflow Sensor
  • CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1991 Buick Regal AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Buick Regal cars and light trucks sold in the U.S.

    1991 Buick Regal Custom 3.8 V6 GAS Wiring Diagram1991 Buick Regal Custom 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • LH Front Speaker
  • RH Front Speaker
  • LH Lower Door Speaker
  • RH Upper Door Speaker
  • RH Lower Door Speaker
  • 1991 Buick Regal Limited 3.1 V6 GAS Wiring Diagram1991 Buick Regal Limited 3.1 V6 GAS Wiring Diagram

    Components on diagram:
  • Air Temp Valve
  • Bi Level Valve Actuator
  • A/C Solenoid Box
  • Heater Defrost Bi Directional Vacuum Actuator
  • CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1991 Buick Regal AUTOMOBILES

    OEM TSB listings for most 1991 Buick Regal cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Buick Regal AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Buick Regal cars and light trucks sold in the U.S. and Canada from 1970+.

    • Brake caliper mounting bolt torque
    • Brake drum runout, machining, & discard specs
    • Minimum brake lining thickness.
    • Brake rotor runout, parallelism, machining, discard, & finish specs

    A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1991 Buick Regal cars and light trucks sold in the U.S. and Canada from 1980+.

    • Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap

    COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.

    PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules

    QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1991 Buick Regal cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.

    • Automatic transmission/transaxles capacities, lubricant recommendations
    • Differential/final drive capacities, lube recommendations, grades, & viscosities
    • Final drive fill & drain plug torques
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
    • Severe service maintenance & interval recommendations
    • Tire sizes, wheel nut/bolt torque, pressures & rim sizes
    • Transfer case capacities, lube recommendations, grades, & viscosities

    TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1991 Buick Regal cars and light trucks sold in the U.S. and Canada from 1980+

    • Airflow sensor electrical specifications
    • Tensioning specifications for systems with automatic tensioners
    • Barometric pressure sensor specs
    • Battery group number and cranking performance
    • Crankshaft & camshaft position sensor resistance
    • Engine compression pressures
    • Coolant temperature sensor specs
    • Computer advance.
    • Diesel fuel temperature sensor resistance.
    • Distributor advance specifications
    • Ignition pickup coil resistance
    • Exhaust gas recirculation temperature sensor resistance
    • Engine fastener torque values
    • Firing order diagrams
    • Fuel system pressures
    • Generator (alternator) specs
    • Intake air temperature sensor specs
    • Ignition coil specifications
    • Fuel injector resistance
    • Engine idle speeds
    • Knock sensor resistance
    • Manifold absolute pressure sensor specs
    • Mixture control solenoid resistance
    • Voltage regulator specs
    • Spark plug applications & gaps
    • Starter motor electrical specs.
    • Tensioning specifications for systems without automatic tensioners
    • Throttle body temperature sensor resistance
    • Ignition timing in degrees at rpm
    • Transmission oil temperature sensor resistance
    • Throttle position sensor specs
    • Vacuum sensor valve specs

    CLICK HERE TO GET FULL ACCESS TO 1991 Buick Regal SPECIFICATIONS DATA!

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

    Click here to view more details about 1992 Buick Regal Cornering Light, Passenger Side1992 Buick Regal Cornering Light, Passenger Side, A High Quality, Direct Fit OE Replacement For Cornering Light.

    Source: Auto Body Parts Store

    $3.98

    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 details about 1997 Buick Regal 16" x 6.5" Alloy Wheel1997 Buick Regal 16" x 6.5" Alloy Wheel, Alloy Wheel; 16 X 6.5; 17 Spokes; 5 Lug; 115MM BP; Machined With Silver Vents, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $100.45

    Click here to view more details1976 Buick Regal V6, 3.8 L, 231 CID Rebuilt Engine, Odd Fire, without smog., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,491.00

    Click here to view more details2012 Buick Regal Used Wiper Motor Front, Very Good.

    Source: Used Auto Parts Store

    $134.00

    Click here to view more details2011 Buick Regal Used Bumper Bar, Rear, 12768289-S.SINGLE EXHAUST, Very Good.

    Source: Used Auto Parts Store

    $170.00
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