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1991 Buick Regal CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Buick REPAIR SHOPS DON'T WANT YOU TO KNOW
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
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!
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 Custom 3.1 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Buick Regal AUTOMOBILES
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> SYSTEM OPERATION -> Diagonally Split System -> DUAL MASTER CYLINDER -> Front & Rear Split System
Vehicle: 1991 Buick Regal Custom 3.8 V6 GAS
DUAL MASTER CYLINDER
Front & Rear Split System
When the brake pedal is depressed, both the primary (front brake) and the secondary (rear brake) master cylinder pistons are moved simultaneously to exert hydraulic fluid pressure on their respective systems,Figs. and .
If the rear (secondary) brake system fails, initial brake pedal movement will cause the unrestricted secondary piston to bottom in the master cylinder bore. Primary piston movement will displace hydraulic fluid in the primary section of the master cylinder to actuate the front brake system.
If the front (primary) brak...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Buick Regal AUTOMOBILES
General Motors Corp./Saturn Passenger Cars -> Component Locations -> Century (1982-05), Regal, Celebrity, Cutlass Ciera, Cutlass Cruiser & 6000 2.5L, 2.8L MFI, 3.1L, 3.3L & 3.8L Engines
Vehicle: 1991 Buick Regal Limited 3.1 V6 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Buick Regal AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1991 Buick Regal Custom 3.8 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....
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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...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Buick Regal AUTOMOBILES
General Motors Corp./Saturn Cars -> Low Washer Fluid Indicator ->
Vehicle: 1991 Buick Regal Custom 3.1 V6 GAS
The windshield washer solvent tank has a switch that closes when the wash...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Buick Regal AUTOMOBILES
Radiator, Replace
Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS
- Disconnect battery ground cable.
- Drain engine coolant into a suitable container.
- Remove upper fan mounting bolts.
- Remove upper radiator panel.
- Remove coolant hoses from radiator and coolant recovery tank hose from radiator neck.
- Disconnect coolant fan electrical co...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Buick Regal AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS
- On models equipped with airbag, disable airbag system.
- On all models, disconnect battery ground cable.
- Rotate tensioner counterclockwise using suitable tool to remove drive belt.
- Remove tensioner pulley attaching bolt, then remove pulley.
- Remove power steering pump from bracket and position aside.
- Loosen, but do not remove, alternator attaching bolts, then remove alter...
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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+.
 Engine Compartment Component Locations Diagram for 1991 Buick Regal Custom 3.8 V6 GASComponents on diagram: |
 LH Side Of Engine Compartment Diagram for 1991 Buick Regal Limited 3.1 V6 GASComponents on diagram: |
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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 DiagramComponents on diagram: |
 1991 Buick Regal Limited 3.1 V6 GAS Wiring DiagramComponents on diagram: |
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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+.
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Document: Car and Truck Fix It Right the First Time Issues Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS Auto Systems: |
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Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1991 Buick Regal Limited 3.8 V6 GAS Auto Systems: |
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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
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