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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!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
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 3.3 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Buick Century AUTOMOBILES
DRUM BRAKES, GENERAL MOTORS -> Type 4 -> INSPECTION
Vehicle: 1990 Buick Century Custom 2.5 L4 GAS
- Inspect brake components for damage and/or wear. Replace as necessary.
- Inspect wheel cylinders. Excessive fluid indicates cup leakage and need for wheel cylinder replacement.
- Inspect backing plate for evidence of axle seal leakage.
- Inspect backing plate attaching...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Buick Century AUTOMOBILES
General Motors Corp./Saturn Passenger Cars -> Fuel Filter Scheduled Maintenance -> 1980-06 Gasoline Engine Models Except Catera, LeMans (1988-93) Metro, Nova (1985-88), Saturn & Sprint -> Normal Service -> Severe Service
Vehicle: 1990 Buick Century Limited 2.5 L4 GAS
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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 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 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 -> Traction Control System (TCS) Warning Lamp ->
Vehicle: 1990 Buick Century Custom 2.5 L4 GAS
This lamp should light for a approximately 6-8 seconds when the ignition is turned on as a bulb check. If the warni...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1990 Buick Century AUTOMOBILES
Radiator, Replace
Vehicle: 1990 Buick Century Limited 2.5 L4 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 Custom 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+.
Engine Compartment Diagram for 1990 Buick Century Limited 2.5 L4 GAS Components on diagram: |
A/C Plenum & Heater Diagram for 1990 Buick Century Limited 3.3 V6 GAS Components on diagram: |
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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 Diagram Components on diagram: |
1990 Buick Century Limited 2.5 L4 GAS Wiring Diagram Components on diagram: |
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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: |
Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1990 Buick Century Custom 2.5 L4 GAS Auto Systems: |
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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
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