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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1990 Oldsmobile 98 car and truck repair procedures including Oldsmobile 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 1990 Oldsmobile 98 automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 1990 Oldsmobile 98

  • 1990 Oldsmobile 98 Regency 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:C
  • 1990 Oldsmobile 98 Regency Brougham 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:C
  • 1990 Oldsmobile 98 Regency Touring 3.8 V6 GAS, CID:231, Fuel Injection, Aspiration:231, Engine VIN:, Desg:C

BRAKE SERVICE PROCEDURES FOR 1990 Oldsmobile 98 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Oldsmobile 98 cars and light trucks from 1990+.

DISC BRAKES, GENERAL MOTORS -> General Information -> GENERAL PRECAUTIONS
Vehicle: 1990 Oldsmobile 98 Regency Brougham 3.8 V6 GAS

  • Grease or any other foreign material must be kept off the brake linings, caliper, surfaces of the disc and external surfaces of the hub, during service procedures. Handling the brake disc and caliper should be done in a way to avoid deformation of the disc and nicking or scratching brake linings.
  • If inspection reveals rubber piston seals are worn or damaged, they should be replaced immediately.
  • During removal and installation of a wheel assembly, exercise care so as not to interfer...

CLICK HERE TO GET FULL ACCESS TO 1990 Oldsmobile 98 BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1990 Oldsmobile 98 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Oldsmobile 98 cars and light trucks from 1990+.

HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> SYSTEM OPERATION -> Diagonally Split System -> DUAL MASTER CYLINDER -> Front & Rear Split System
Vehicle: 1990 Oldsmobile 98 Regency Brougham 3.8 V6 GAS

DUAL MASTER CYLINDER

Front & Rear Split System

When the brake pedal is depressed, both the primary (front brake) and the secondary (rear brake) master cylinder pistons are moved simultaneously to exert hydraulic fluid pressure on their respective systems,Figs. and .

If the rear (secondary) brake system fails, initial brake pedal movement will cause the unrestricted secondary piston to bottom in the master cylinder bore. Primary piston movement will displace hydraulic fluid in the primary section of the master cylinder to actuate the front brake system.

If the front (primary) brak...

CLICK HERE TO GET FULL ACCESS TO 1990 Oldsmobile 98 BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1990 Oldsmobile 98 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Oldsmobile 98 cars and light trucks from 1990+.

POWER BRAKE UNITS, GENERAL MOTORS -> TOYOTA/GM SINGLE DIAPHRAGM TYPE -> ADJUSTMENTS -> Assembly -> Booster Pushrod -> Brake Pedal -> Brakes Drag -> Brakes Grab -> Disassembly -> Hard Pedal/Brakes Inefficient -> Low Or Spongy Brake Pedal -> OVERHAUL -> TROUBLESHOOTING
Vehicle: 1990 Oldsmobile 98 Regency Brougham 3.8 V6 GAS

ADJUSTMENTS

Brake Pedal
  • With engine running and brake pedal in rest position, measure distance between face of pedal and floor mat.
  • If distance is not 5.79-6.18 inches, adjust pedal height as follows:
    • Remove left lower instrument panel trim section and air duct.
    • Loosen stop lamp switch sufficiently to gain clearance for pedal adjustment.
    • Loosen locknut and rotate pedal pushrod as needed to obtain specified pedal height, then tighten locknut.
    • Adjust position of brake light switch so that plunger lightly contacts pedal stopper and brake lamps are off when pedal is release...

CLICK HERE TO GET FULL ACCESS TO 1990 Oldsmobile 98 BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1990 Oldsmobile 98 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Oldsmobile 98 cars and light trucks from 1990+.

DISC BRAKES, GENERAL MOTORS -> General Information -> BRAKE SHOES, LININGS & CALIPERS
Vehicle: 1990 Oldsmobile 98 Regency 3.8 V6 GAS

Remove wheels and inspect brake disc, caliper and linings. The wheel bearings should be inspected at this time and repacked if necessary. Do not get any grease on the linings.

Do not replace individual pads or replace pads on one wheel of an axle set alone, as braking performance will be adversely affected.

If a visual inspection does not ade...

CLICK HERE TO GET FULL ACCESS TO 1990 Oldsmobile 98 BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1990 Oldsmobile 98 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Oldsmobile 98 cars and light trucks from 1990+.

DRUM BRAKES, GENERAL MOTORS -> Type 5 -> REMOVAL
Vehicle: 1990 Oldsmobile 98 Regency Brougham 3.8 V6 GAS

  • Raise and support vehicle.
  • Mark relationship of wheel to axle flange, then remove wheel and tire assembly.
  • Mark relationship of brake drum to axle flange, then remove drum.If brake drum is difficult to remove, back off parking brake cable adjustment, remove inspection hole plug from backing plate, insert screwdriver through hole and press in to push parking brake lever off stop.
  • Using suitable tool, rem...

CLICK HERE TO GET FULL ACCESS TO 1990 Oldsmobile 98 BRAKE SERVICE PROCEDURES

BRAKE SERVICE PROCEDURES FOR 1990 Oldsmobile 98 AUTOMOBILES

Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1990 Oldsmobile 98 cars and light trucks from 1990+.

DISC BRAKES, GENERAL MOTORS -> General Information -> TROUBLESHOOTING
Vehicle: 1990 Oldsmobile 98 Regency Touring 3.8 V6 GAS

When troubleshoot...

CLICK HERE TO GET FULL ACCESS TO 1990 Oldsmobile 98 BRAKE SERVICE PROCEDURES

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

Click here to view more details about 1990 Oldsmobile 98 Door Handle, Front Or Rear, Driver Side1990 Oldsmobile 98 Door Handle, Front Or Rear, Driver Side, Without keyhole; A high quality, OE replacement door handle; Backed by 1-year, unlimited-mileage warranty..

Source: Auto Body Parts Store

$11.43

Click here to view more details about 1986 Oldsmobile 98 Headlight, Driver Or Passenger Side1986 Oldsmobile 98 Headlight, Driver Or Passenger Side, Bulbs included; Sealed beam, low beam, and halogen type; Rectangular; DOT and SAE approved; A high quality, OE replacement headlight assembly; Backed by 1-year, unlimited-mileage warranty..

Source: Auto Body Parts Store

$16.24

Click here to view more details1999 Oldsmobile Olds 88 Radiator, Radiator; V6; Without Engine Oil Cooler; Use With Or Without LCI Sensor; 30 Inch Core, , .

Source: Wheels / Rims, Mirrors & Lights Store

$126.50

Click here to view more details1986 Oldsmobile 98 Regency V6, 3.8 L, 231 CID Rebuilt Engine, FWD, 20 bolt pan, without distributor. With oil pump kit only., Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,413.00

Click here to view more details1994 Oldsmobile 98 Used AM-FM-Cassette, AM-MONO-FM-STEREO-CASS, Very Good.

Source: Used Auto Parts Store

$70.00

Click here to view more details1977 Oldsmobile 98 Used Exhaust Manifold, 1390078 NEW, AFTERMARKET.

Source: Used Auto Parts Store

$96.00
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