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1990 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 1990 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 1990 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 1990 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: 1990 Buick Century Custom 2.5 L4 GAS

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BRAKE SERVICE PROCEDURES FOR 1990 Buick Century AUTOMOBILES

HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> TROUBLESHOOTING -> CHECKING FOR FLUID LEAKAGE -> ROAD TESTING
Vehicle: 1990 Buick Century Limited 2.5 L4 GAS

When troubleshooting the hydraulic brake system, perform the following checks and inspections as outlined below. If problem still exists within system, refer toFig. first, then toFig. as necessary.

ROAD TESTING

When testing brakes, ensure the road is level and dry. Test brakes at both light and heavy pedal pressure. Do not lock up brakes or slide tires during a brake test.

Check the tires on the vehicle before performing a brake test. Tires should be equally inflated, identical in size ...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Buick Century 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: 1990 Buick Century Custom 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 1990 Buick Century AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 1990 Buick Century Custom 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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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Buick Century AUTOMOBILES

Alternator, Replace
Vehicle: 1990 Buick Century Limited 2.5 L4 GAS

  • Remove air cleaner assembly.
  • Disconnect battery ground cable.
  • Disconnect electrical connector from alternator.
  • Remove drive belt.
  • Remove generator mounting bolts.
  • Remove bolt from brace to alternator.
  • Remove nut from...

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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Buick Century AUTOMOBILES

General Motors Corp./Saturn Cars -> Check Fuel Cap Lamp ->
Vehicle: 1990 Buick Century Limited 2.5 L4 GAS

The Check Fuel Cap Lamp will illuminate momentarily when the ignition switch is placed in the on position as a bulb check. If...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Buick Century AUTOMOBILES

Radiator, Replace
Vehicle: 1990 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 1990 Buick Century AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 1990 Buick Century Limited 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 1990 Buick Century AUTOMOBILES

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

Front Of Engine  Diagram for 1990 Buick Century Limited 3.3 V6 GASFront Of Engine Diagram for 1990 Buick Century Limited 3.3 V6 GAS

Components on diagram:
  • Fusible Link
  • Behind I/P  Diagram for 1990 Buick Century Custom 3.3 V6 GASBehind I/P Diagram for 1990 Buick Century Custom 3.3 V6 GAS

    Components on diagram:
  • Release Relay
  • Low Coolant Module
  • Splice S202
  • Splice S268
  • Ground G202
  • CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1990 Buick Century AUTOMOBILES

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

    1990 Buick Century Limited 3.3 V6 GAS Wiring Diagram1990 Buick Century Limited 3.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Convenience Center
  • Light Switch
  • AWD Lock Switch
  • 1990 Buick Century Limited 3.3 V6 GAS Wiring Diagram1990 Buick Century Limited 3.3 V6 GAS Wiring Diagram

    Components on diagram:
  • Power Seat Switch
  • CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1990 Buick Century AUTOMOBILES

    OEM TSB listings for most 1990 Buick Century cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1990 Buick Century Custom 2.5 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1990 Buick Century Custom 2.5 L4 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1990 Buick Century AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 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 1990 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 1990 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 1990 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 1990 Buick Century SPECIFICATIONS DATA!

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

    Click here to view more details about 2002 Buick Century Bumper Reinforcement, Front2002 Buick Century Bumper Reinforcement, Front, A high quality, direct fit OE replacement bumper reinforcement; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $45.75

    Click here to view more details2003 Buick Century Neutral Safety Switch, Post type; 4-prong and 7-prong male terminals; A high quality, direct fit OE replacement neutral safety switch; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $41.95

    Click here to view more details about 2002 Buick Century 15" x 6" Alloy Wheel2002 Buick Century 15" x 6" Alloy Wheel, Alloy Wheel; 15 X 6; 52MM Offset; 16 Spokes; 5 Lug; 115MM BP; Silver, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $117.50

    Click here to view more details1986 Buick Century Custom L4, 2.5 L, 2474 CC, 151 CID Rebuilt Engine, FWD, Roller cam,Non Balance shaft, Smog in Manifold., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,469.00

    Click here to view more details2002 Buick Century Used Rear Lower Control Arm, Passenger Side, 3.4, AUTO, FWD floor to knuckle (trailing arm), soft ride, handling and sport suspension (opt FE1, opt, Very Good.

    Source: Used Auto Parts Store

    $78.00

    Click here to view more details2001 Buick Century Used Rear Vent Window, Passenger Side, R, R., Very Good.

    Source: Used Auto Parts Store

    $80.00
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