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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!
    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 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 Limited 3.3 V6 GAS

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    CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1990 Buick Century AUTOMOBILES

    DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston w/Dual Mounting Bolts (Type 2) -> DESCRIPTION
    Vehicle: 1990 Buick Century Limited 3.3 V6 GAS

    The caliper has a single piston and is mounted to the support bracket by two mounting bolts, Figs. through . The caliper assembly slides on the two mounting bolts. Upon brake application, fluid pressure against the piston forces the inboard s...

    CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century BRAKE SERVICE PROCEDURES

    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 2.5 L4 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 1990 Buick Century FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1990 Buick Century AUTOMOBILES

    CV AXLE SHAFT, Replace
    Vehicle: 1990 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...

    CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Buick Century AUTOMOBILES

    Starter, Replace
    Vehicle: 1990 Buick Century Custom 2.5 L4 GAS

    • Remove air cleaner assembly.
    • Disconnect battery ground cable.
    • Raise and support vehicle.
    • Remove brace from A/C compressor to engine.
    • Remove bolts from flywheel inspection cover.
    • Remove flywheel inspection cover.
    • Remove starter motor mounting bolt...

    CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Buick Century AUTOMOBILES

    General Motors Corp./Saturn Cars -> Low Coolant Lamp ->
    Vehicle: 1990 Buick Century Limited 2.5 L4 GAS

    This lamp should light when engine coolant level in the radiator drops below a predetermined le...

    CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Buick Century AUTOMOBILES

    Radiator, Replace
    Vehicle: 1990 Buick Century Custom 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...

    CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Buick Century AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 1990 Buick Century Limited 3.3 V6 GAS

    • Disconnect battery ground cable.
    • Support engine using suitable tool.
    • Remove engine mount to body bracket bolts in wheelwell.
    • Remove engine mount to body bracket and engine bracket bolts in engine compartment.
    • Remove engine mount.
    • ...

    CLICK HERE TO GET FULL ACCESS TO 1990 Buick Century SERPENTINE BELT SERVICE PROCEDURES

    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+.

    LH Front Of Engine Compartment Diagram for 1990 Buick Century Limited 3.3 V6 GASLH Front Of Engine Compartment Diagram for 1990 Buick Century Limited 3.3 V6 GAS

    Components on diagram:
  • Connector C101
  • Fusible Link C
  • Fusible Link B
  • Behind LH Side Of I/P  Diagram for 1990 Buick Century Custom 3.3 V6 GASBehind LH Side Of I/P Diagram for 1990 Buick Century Custom 3.3 V6 GAS

    Components on diagram:
  • Convenience Center
  • Light Switch Light
  • Splice S115
  • Connector C200
  • Connector C204
  • 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 2.5 L4 GAS Wiring Diagram1990 Buick Century Limited 2.5 L4 GAS Wiring Diagram

    Components on diagram:
  • Instrument Cluster
  • Brake Switch
  • Cruise Indicator
  • Electronic Control Module
  • Multi-Function Lever
  • 1990 Buick Century Custom 2.5 L4 GAS Wiring Diagram1990 Buick Century Custom 2.5 L4 GAS Wiring Diagram

    Components on diagram:
  • Heater A/C Control Assembly
  • A/C Defrost Valve
  • A/C Heater Vacuum Actuator
  • A/C Defroster Vacuum Actuator
  • 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 details1999 Buick Century Fuel Tank, 33.25 in. L x 27.75 in. W; A high quality, direct fit OE replacement fuel tank; Features all-zinc external layer, combined zinc and iron mid-section, and pure steel core; Its multi-layered construction is designed to withstand corrosion-inducing circumstances such as saltwater or moisture; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $194.22

    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 1996 Buick Century Manual Remote Door Mirror, Passenger Side1996 Buick Century Manual Remote Door Mirror, Passenger Side, PASSENGER SIDE MANUAL REMOTE DOOR MIRROR, PAINT TO MATCH , , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $39.70

    Click here to view more details1988 Buick Century Custom V6, 3.8 L, 231 CID Rebuilt Engine, FWD, roller cam, No distributor, oil pump driven by splines. 7/16" Dia. dipstick tube, GM dipstick P/N 25531505, tube P/N 25531507. With oil pump kit only., Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,445.00

    Click here to view more details2000 Buick Century Used Air Injection Pump, 3.8, AUTO, FWD (3.8L, CALIF), Very Good.

    Source: Used Auto Parts Store

    $115.00

    Click here to view more details2000 Buick Century Used A/C Compressor, 3.4, AUTO, FWD, Very Good.

    Source: Used Auto Parts Store

    $145.00
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