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1990 Buick Skylark CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Buick REPAIR SHOPS DON'T WANT YOU TO KNOW
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- 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 Skylark AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Buick Skylark, Chevrolet Malibu, Oldsmobile Achieva, Alero, Cutlass & Pontiac Grand Am
Vehicle: 1990 Buick Skylark Gran Sport 2.3 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 1990 Buick Skylark AUTOMOBILES
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> SYSTEM SERVICE -> BLEEDING BRAKES -> Flushing Hydraulic System -> Manual Bleeding -> Pressure Bleeding -> Wheel Bleeding Sequence
Vehicle: 1990 Buick Skylark Luxury Edition 2.3 L4 GAS
BLEEDING BRAKES
Manual Bleeding
Pressure bleeding is recommended for all hydraulic systems. However, if a pressure bleeder is unavailable, use the following procedure.Brake fluid damages painted surfaces. Immediately clean any spilled fluid.
- Remove vacuum reserve by pumping brakes several times with engine off.
- Fill master cylinder reservoir with clean brake fluid. Check fluid level often during bleeding procedure; do not let reservoir fall below half full.
- If necessary, bleed master cylinder as follows:
- Disconnect master cylinder forward brake line connection until fluid flows from re...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1990 Buick Skylark 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 Skylark 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 Skylark AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 1990 Buick Skylark Custom 2.3 L4 GAS
- Raise and support vehicle.
- Mark position of shaft in relation to pinion flange for reassembly.
- Remove straps securing universal joint to pinion flange, then disconnect shaft from flange. Tape bearing cups to universal joint to prevent loss of ne...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1990 Buick Skylark AUTOMOBILES
Starter, Replace
Vehicle: 1990 Buick Skylark Luxury Edition 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...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1990 Buick Skylark AUTOMOBILES
General Motors Corp./Saturn Cars -> Check Fuel Cap Lamp ->
Vehicle: 1990 Buick Skylark Luxury Edition 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 Skylark AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1990 Buick Skylark 2.5 L4 GAS
Lower
- Drain cooling system into a suitable container.
- Reposition hose clamp from radiator using hose clamp pliers.
- Remove radiator outlet hose from radiator.
- Reposition hose clamp from water pump housing using hose clamp pliers.
- Remove radiator outlet hose from water pump housing and from vehicle.
- Reverse procedure to i...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1990 Buick Skylark AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1990 Buick Skylark 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 Skylark AUTOMOBILES
Component location diagrams for most 1990 Buick Skylark cars and light trucks sold in the U.S. from 1990+.
Behind LH Side Of I/P Diagram for 1990 Buick Skylark Gran Sport 2.5 L4 GAS Components on diagram: |
RH Side Of Steering Column Diagram for 1990 Buick Skylark Gran Sport 3.3 V6 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1990 Buick Skylark AUTOMOBILES
OEM drawn wiring diagrams for most 1990 Buick Skylark cars and light trucks sold in the U.S.
1990 Buick Skylark Gran Sport 3.3 V6 GAS Wiring Diagram Components on diagram: |
1990 Buick Skylark Gran Sport 2.3 L4 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1990 Buick Skylark AUTOMOBILES
OEM TSB listings for most 1990 Buick Skylark 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 Skylark 2.5 L4 GAS Auto Systems: |
Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1990 Buick Skylark 2.5 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1990 Buick Skylark AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1990 Buick Skylark 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 Skylark 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 Skylark 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 Skylark 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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