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1991 Buick Century 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!Select Section
- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- 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 Century 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 Century automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 Buick Century AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> Chevrolet Celebrity, Oldsmobile Cutlass Ciera & Cutlass Cruiser & Pontiac 6000 & 1990-96 Buick Century
Vehicle: 1991 Buick Century Special 2.5 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Buick Century AUTOMOBILES
DISC BRAKES, GENERAL MOTORS -> General Information -> BRAKE ROUGHNESS
Vehicle: 1991 Buick Century Custom 2.5 L4 GAS
The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pulsation is experienced at low speeds, the disc may have excessive thickness variation. To check for this condition, measure the disc at 12 points with a micrometer at a radius approximately one inch from edge of disc. If thickness measurements vary by more than .0005 inch, the disc should be rep...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Buick Century 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 Century Limited 3.3 V6 GAS
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Buick Century AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1991 Buick Century Custom 3.3 V6 GAS
- Raise and support vehicle, then remove tire and wheel assembly.
- Install a brass drift or a screwdriver to prevent rotor from turning.
- Remove shaft nut and washer.
- Remove brake caliper from steering knuckle and suspend caliper assembly.
- Remove rotor from hub and bearing assembly, then stabilizer shaft or link from control arm.
- Remove ball joint from steering knuckle.
- Remove drive axle from transaxle using axle shaft remover tool No. J-33008, a...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Buick Century AUTOMOBILES
Starter, Replace
Vehicle: 1991 Buick Century Limited 3.3 V6 GAS
- Disconnect battery ground cable.
- Remove righthand cooling fan.
- Remove drive belt.
- Remove A/C compressor upper support brace. Move compressor to side.
- Raise and support vehicle.
- Disconnect engine oil cooler lines at flex connector.
- Remove bolts from flywheel inspection cover and remove cover.
- Remove starter mou...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Buick Century AUTOMOBILES
General Motors Corp./Saturn Cars -> Check Gauge Warning Lamp ->
Vehicle: 1991 Buick Century Special 3.3 V6 GAS
The Check Gauge warning lamp will light to warn the driver to inspect the oil pressure gauge, engine coolant temperature ga...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Buick Century AUTOMOBILES
Radiator, Replace
Vehicle: 1991 Buick Century Limited 3.3 V6 GAS
- Remove air cleaner assembly including mounting stud and air cleaner duct.
- Disconnect battery ground cable.
- Drain engine coolant into a suitable container.
- Disconnect engine strut brace bolts from upper mounting panel and rotate struts and braces rearward. To prevent shearing of rubber bushings, loosen bolts on engine struts before swinging struts.
- Disconnect electrical connection from fans.
- Remove fan attachi...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Buick Century AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Buick Century Special 2.5 L4 GAS
- Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Buick Century AUTOMOBILES
Component location diagrams for most 1991 Buick Century cars and light trucks sold in the U.S. from 1990+.
 RH Shroud And Door Diagram for 1991 Buick Century Special 3.3 V6 GASComponents on diagram: |
 Behind Center Of I/P Diagram for 1991 Buick Century Limited 3.3 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 1991 Buick Century AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Buick Century cars and light trucks sold in the U.S.
 1991 Buick Century Custom 3.3 V6 GAS Wiring DiagramComponents on diagram: |
 1991 Buick Century Custom 2.5 L4 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Buick Century AUTOMOBILES
OEM TSB listings for most 1991 Buick Century 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 Century Custom 2.5 L4 GAS Auto Systems: |
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Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1991 Buick Century Custom 2.5 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Buick Century AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Buick Century 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 Century 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 Century 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 Century 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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