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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!

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    Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 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!
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    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 Buick Century 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 Buick Century AUTOMOBILES

    Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Buick Century cars and light trucks from 1990+

    Cooling Fans -> Passenger Cars Except Saturn -> SYSTEM DIAGNOSIS & TESTING -> 2.2L/4-134, 2.3L/4-138 & 3.1L/V6-192 ENGINE -> 4.6L/V8-279 Engine -> 4.9L/V8-300 Engine -> A/C Condenser Fan -> ACHIEVA, GRAND AM & SKYLARK -> AURORA -> BERETTA & CORSICA -> BONNEVILLE -> Both Coolant Fans Do Not Run -> CAMARO & FIREBIRD -> CAPRICE, IMPALA SS & ROADMASTER -> CAVALIER & SUNFIRE -> CENTURY, CUTLASS CIERA & CUTLASS CRUISER -> Coolant Fan Does Not Run At All -> Coolant Fan Does Not Turn Off w/Engine Coolant Cool, A/C Mode Selector Off & Ignition Switch In Run -> Coolant Fan Does Not Turn Off With Engine Cool, A/C Mode Selector Off & Ignition Switch In RUN -> Coolant Fan Does Not Turn Off With Engine Coolant Cool & A/C Mode Selector Off & Ignition switch in RUN -> Coolant Fan Does Not Turn Off With Ignition Switch In Run -> Coolant Fan Does Not Turn On -> Coolant Fan Input Test -> Coolant Fans Do Not Operate In High Speed With A/C Head Pressure Above 210 psi -> CORVETTE -> CUTLASS SUPREME, GRAND PRIX & REGAL -> DEVILLE, ELDORADO & SEVILLE -> EIGHTY EIGHT & NINETY EIGHT -> Engine Cooling Fan -> FLEETWOOD (RWD) -> HIGH SPEED CONDITIONS -> High Speed Coolant Fan Input Test -> HIGH SPEED OPERATION -> Lefthand Coolant Fan Does Not Operate In High Speed -> Lefthand Coolant Fan Does Not Operate In High Speed w/A/C Head Pressure Above 210 psi -> Lefthand Coolant Fan Does Not Operate In Low Speed -> Lefthand Coolant Fan Runs Continuously In High Speed w/Ignition Switch At Run, Engine Coolant Cool & A/C Off -> Lefthand Coolant fan Runs Continuously In High Speed With Ignition Switch At RUN, Engine Coolant Cool & A/C Off -> Lefthand Coolant Fan Runs Continuously In Low Speed w/Ignition Switch At Run, Engine Coolant Cool & A/C Off -> Lefthand Coolant Fan Runs Continuously In Low Speed With Ignition Switch At RUN, Engine Coolant Cool & A/C Off -> LOW SPEED CONDITIONS -> Low Speed Coolant Fan Input Test -> LOW SPEED OPERATION -> LUMINA & MONTE CARLO -> METRO -> PARK AVENUE & LESABRE -> Primary Cooling Fan Does Not Run -> Primary Cooling Fan Runs Continuously w/Engine Coolant Cool & A/C Mode Selector Off -> PRIZM -> RIVIERA -> Secondary Cooling Fan Does Not Run -> Secondary Cooling Or Generator Fan Runs Continuously w/Engine Coolant Cool & A/C Mode Selector Off -> SUNBIRD -> System Check -> System Diagnosis
    Vehicle: 1993 Buick Century Custom 3.3 V6 GAS

    AURORA

    System Diagnosis

    Refer to Fig. , for system diagnosis.

    ACHIEVA, GRAND AM & SKYLARK

    System Check
    • With ambient air temperature above 70°F, open all doors, start car and set A/C mode selector on MAX. Coolant fan should turn on.
    • With engine coolant below operating temperature, move A/C mode selector to OFF. Coolant fan should turn off in a short period of time.
    • Run engine at fast idle for several minutes. Coolant fan should come on before the coolant temperature indicator comes on or the coolant temperature d...

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    BRAKE SERVICE PROCEDURES FOR Buick Century AUTOMOBILES

    Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Buick Century cars and light trucks from 1990+.

    DISC BRAKES, GENERAL MOTORS -> General Information -> PROPORTIONING VALVE
    Vehicle: 1990 Buick Century Custom 2.5 L4 GAS

    The proportioning valve (when used), Fig. , provides balanced braking action between front and rear brakes under a wide range of braking conditions. The valve regulates the hyd...

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    FUEL FILTER REPLACEMENT PROCEDURES FOR Buick Century AUTOMOBILES

    Fuel filter replacement procedures with corresponding images for most domestic and imported Buick Century cars and light trucks sold in the U.S. for 1980+.

    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 Century Limited 3.3 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...

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

    Includes CV axle, universal joint, and driveline replacement, for domestic and imported Buick Century cars and light trucks from 1990+.

    CV AXLE SHAFT, Replace
    Vehicle: 1991 Buick Century Limited 2.5 L4 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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    TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR Buick Century AUTOMOBILES

    Description, component locations, reset procedures, relearn procedures, diagnosis and testing, wiring diagrams, component replacement, and identification of vehicles equipped and not equipped with tire pressure monitoring system for most domestic and imported Buick Century cars and light trucks sold in the U.S. from mid 1990's+.

    Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Tests -> Intermittent & Poor Connections -> Intermittents -> Poor Connections
    Vehicle: 2002 Buick Century Limited 3.1 V6 GAS

    Accessing Diagnostic Trouble Codes

    Connect a suitably programmed scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.

    Diagnostic Tests

    Refer to Figs. through for diagnostic test procedures.

    Clearing Diagnostic Trouble Codes

    Connect a suitably programmed scan tool to DLC (Data Link Connector), and follow manufacturer's instructions.

    Intermittent & Poor Connections

    Intermittents

    Most intermittents are caused by faulty electrical connections or wiring. Inspect for the following:

    • Wiring broken inside insulation.
    • Poor connection between male and female terminal ...

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    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Buick Century AUTOMOBILES

    Includes starter and alternator replacement procedures for domestic and imported Buick Century cars and light trucks from 1990+.

    Alternator, Replace
    Vehicle: 1993 Buick Century Custom 3.3 V6 GAS

    • Disconnect battery ground cable from battery.
    • Remove drive belt from alternator.
    • Remove bolts from alternator.
    • Remove electrical connector from alternator.
    • Loosen alternator front and rear braces at engine intake manifold.
    • Remove nut and battery positive lead from al...

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    CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR Buick Century AUTOMOBILES

    Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported Buick Century cars and light trucks sold in the U.S. as equipped to the current model year.

    Cabin Air Filter Service -> General Motors Corp./Saturn -> 1997-2005 Century, Regal, 1998-2002 Intrigue & 2000-05 Impala & Monte Carlo
    Vehicle: 1999 Buick Century Custom 3.1 V6 GAS

    Under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.

    • Place the windshield wipers in the up position by turning the ignition switch Off when the wipers reach the desired position.
    • Open the hood.
    • Lift the righthand side of the rear hood seal from the flange in the area of the rig...

    CLICK HERE TO GET FULL ACCESS TO Buick Century CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR Buick Century AUTOMOBILES

    Maintenance lamp reset procedures with corresponding images for most domestic and imported Buick Century cars and light trucks sold in the U.S. from 1990+.

    General Motors Corp./Saturn Cars -> Reduce Engine Power Indicator Lamp ->
    Vehicle: 1992 Buick Century Special 3.3 V6 GAS

    The Reduce Engine Power indicator lamp should light for a approximately 3 seconds when the ignition is turned on as a bulb check. If the warning lamp turns on during vehicle operation, a vehicl...

    CLICK HERE TO GET FULL ACCESS TO Buick Century MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Buick Century AUTOMOBILES

    Includes radiator, cooling and heater hose replacement procedures for domestic and imported Buick Century cars and light trucks from 1990+

    Radiator, Replace
    Vehicle: 1999 Buick Century Limited 3.1 V6 GAS

    • Remove battery, then drain cooling system into a suitable container.
    • Remove air cleaner assembly, then drain engine coolant into a suitable container.
    • Remove engine strut upper brace bolts from upper tie bar and rotate strut and brace rearward.
    • Disconnect upper radiator mounting panel bolts and c...

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    SERPENTINE BELT SERVICE PROCEDURES FOR Buick Century AUTOMOBILES

    Serpentine belt replacement procedures with corresponding images for most domestic and imported Buick Century cars and light trucks sold in the U.S. from 1990+.

    Serpentine Drive Belt, Replace
    Vehicle: 1996 Buick Century Special 2.2 L4 GAS

    • Remove coolant reservoir. Ensure engine is cool when removing coolant reservoir. Drain coolant into a suitable container.
    • Rotate tensioner clockwise u...

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    COMPONENT LOCATION DIAGRAMS FOR Buick Century AUTOMOBILES

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

    Behind RH Side Of I/P Diagram for 1991 Buick Century Special 3.3 V6 GASBehind RH Side Of I/P Diagram for 1991 Buick Century Special 3.3 V6 GAS

    Components on diagram:
  • Splice S-136
  • Splice S-191
  • Splice S-172
  • Splice S-168
  • Electronic Control Module
  • Left Side Of Rear Window Diagram for 2002 Buick Century Limited 3.1 V6 GASLeft Side Of Rear Window Diagram for 2002 Buick Century Limited 3.1 V6 GAS

    Components on diagram:
  • RF Filter
  • Body Wiring Harness
  • Connector C-1
  • Connector C-3
  • Rear Window Defogger Grid Connector
  • CLICK HERE TO GET FULL ACCESS TO Buick Century PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR Buick Century AUTOMOBILES

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

    1996 Buick Century Special 2.2 L4 GAS Wiring Diagram1996 Buick Century Special 2.2 L4 GAS Wiring Diagram

    Components on diagram:
  • Passenger Compartment Discriminating Sensor
  • Radio
  • Forward Discriminating Sensor
  • Diagnostic & Energy Reserve Module (DERM)
  • Outside Remote Control Rearview Mirror Switch
  • 1991 Buick Century Custom 3.3 V6 GAS Wiring Diagram1991 Buick Century Custom 3.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Instrument Cluster
  • RH Turn Indicator
  • Brake Indicator
  • Service Engine Soon Indicator
  • Fasten Belts Indicator
  • CLICK HERE TO GET FULL ACCESS TO Buick Century WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR Buick Century AUTOMOBILES

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

    Document: IMPROVED BLEEDING PROCEDURE FOR HYDRAULIC CLUTCH RELEASE SYSTEM - REVISED
    Vehicle: 2000 Buick Century Custom 3.1 V6 GAS

    Auto Systems:
  • Manual Trans, Clutches, Linkage, MTX
  • Document: POWERTRAIN QUALITY CENTER FOR ENGINE AND TRANSMISSION ASSEMBLY AND TRANSFER CASE REPLACEMENT - REVISED
    Vehicle: 1995 Buick Century Special 2.2 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • CLICK HERE TO GET FULL ACCESS TO Buick Century TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR Buick Century AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 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 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 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 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

    CLICK HERE TO GET FULL ACCESS TO Buick Century SPECIFICATIONS DATA!

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

    Click here to view more details about 1993 Buick Century Starter1993 Buick Century Starter, Uses Only New Components, Meets Or Exceeds All OEM Specifications, Includes A Manufacturer's Two Year Warranty.

    Source: Auto Body Parts Store

    $84.63

    Click here to view more details about 2002 Buick Century Mirror, Passenger Side2002 Buick Century Mirror, Passenger Side.

    Source: Auto Body Parts Store

    $53.36

    Click here to view more details about 1988 Buick Century 14" x 5.5" Alloy Wheel1988 Buick Century 14" x 5.5" Alloy Wheel, Alloy Wheel; 14 X 5.5; 30 Spokes; 5 Lug; 115MM BP; AS Cast, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $100.45

    Click here to view more details1989 Buick Century Custom V6, 2.8 L, 173 CID Rebuilt Engine, FWD, MFI, trigger fire ignition, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,348.00

    Click here to view more details2004 Buick Century Used Brake Master Cylinder, 3.4, AUTO, FWD w/ABS (opt JL9), LD brakes (opt JB9), Very Good.

    Source: Used Auto Parts Store

    $68.00

    Click here to view more details1990 Buick Century Used Bumper Bar, Front, 4DR, White, CUSTOM, Very Good.

    Source: Used Auto Parts Store

    $93.00
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