Auto Parts Search


      Over 40 million used auto parts online. Shop online for auto and truck parts and save up to 75%

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!
Help me findSearch
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!
DIY REPAIR SAMPLES > CONTINUE EXPLORING >

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 -> BRAKE SHOES, LININGS & CALIPERS
Vehicle: 1990 Oldsmobile 98 Regency Touring 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+.

ANTI-LOCK BRAKES, GENERAL MOTORS -> 1990 Bonneville, DeVille, Eighty-Eight, Electra, Fleetwood, Ninety-Eight, Park Avenue & 6000 (Teves Type) -> DIAGNOSIS -> 1990 6000 -> 1990 MODELS EXCEPT 6000 -> ABS FUNCTIONAL CHECK -> ABS PRE-DIAGNOSIS INSPECTION -> ABS SYMPTOM DIAGNOSIS -> ABS TROUBLE CODE DIAGNOSIS -> BASIC DIAGNOSTIC PROCEDURE -> CLEARING ABS CODES -> DIAGNOSTIC TESTS -> DISPLAYING ABS TROUBLE CODES -> ELECTRICAL CONNECTOR IDENTIFICATION & LOCATION -> HISTORY & CURRENT ABS CODES -> LAMP SEQUENCE DETERMINATION -> LAMP SEQUENCE TEST PROCEDURE -> NOTE ON INTERMITTENTS -> PRE-DIAGNOSIS INSPECTION -> READING ABS TROUBLE CODES -> SELF-DIAGNOSIS -> SYSTEM VOLTAGE DURING DIAGNOSIS -> WIRING DIAGRAMS
Vehicle: 1990 Oldsmobile 98 Regency Brougham 3.8 V6 GAS

1990 6000

WIRING DIAGRAMS

Refer to "Wiring Diagrams" in "Vehicle Systems".

ELECTRICAL CONNECTOR IDENTIFICATION & LOCATION

Diagnosis of system malfunctions requires three basic steps which must be followed in order to isolate the fault accurately and quickly. The proper diagnostic procedure consists of the following steps: Pre-Diagnosis Inspection, Lamp Sequence Determination and Component Test Charts. Refer to connector location and identification Figs. and , and circuit locationFig. , when performing diagnosis on this system.

PRE-DIAGNOSIS INSPECTION

The pre-diagnosis inspection consists of ...

[[table data]]

[[table data]]
[[table data]]

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+.

ANTI-LOCK BRAKES, GENERAL MOTORS -> 1990 Bonneville, DeVille, Eighty-Eight, Electra, Fleetwood, Ninety-Eight, Park Avenue & 6000 (Teves Type) -> SYSTEM COMPONENTS -> ANTI-LOCK WARNING LAMP -> BRAKE WARNING LAMP -> ELECTRONIC BRAKE CONTROL MODULE (EBCM) -> HYDRAULIC UNIT -> TIMER FLASHER MODULE
Vehicle: 1990 Oldsmobile 98 Regency Touring 3.8 V6 GAS

The anti-lock brake system, Fig. , consists of a pump motor assembly, fluid accumulator, pressure switch, fluid reservoir with integral filter, hydraulic booster/master cylinder, wheel speed sensors, Electronic Brake Control Module (EBCM) and a valve block assembly.

ELECTRONIC BRAKE CONTROL MODULE (EBCM)

The EBCM monitors speed of each wheel to determine if any wheel is beginning to lock. If a locking condition is sensed, brake pressures are automatically adjusted to provide for maximum stopping without wheel lock.

TIMER FLASHER MODULE

On some models, the pump circuit includes a t...

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 -> WHEEL CYLINDER OVERHAUL
Vehicle: 1990 Oldsmobile 98 Regency 3.8 V6 GAS

  • Raise and support vehicle.
  • Remove wheel, drum and brake shoes.
  • Disconnect hydraulic line at wheel cylinder.Do not pull metal line away from cylinder, as this may kink or bend line. Line will separate from cylinder when cylinder is moved away from brake backing plate.
  • Remove wheel cylinder-to-brake plate attaching screws, then the wheel cylinder.
  • Remove boots, pistons, springs and cups from cylinder,Fig. .
  • Clean all parts with brake fluid.
  • Inspect cylinder bore. A scored bore may be honed as long as the diameter is not increased by m...

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 -> GENERAL SERVICE -> AIR METHOD -> Delco-Moraine Type -> GAUGE METHOD -> POWER BOOSTER REPLACE -> PRECAUTIONS -> PUSHROD ADJUSTMENT -> Single Diaphragm Type
Vehicle: 1990 Oldsmobile 98 Regency 3.8 V6 GAS

Two basic types of power assist mechanisms are used: vacuum assist diaphragm assemblies, which use engine vacuum or, in some cases vacuum pressure developed by an external vacuum pump. The second type is a hydraulic pressure assist mechanism, which use pressure developed by an external pump (usually the power steering pump). Both systems act to increase the force exerted on the master cylinder piston by the operator. This in turn increases the hydraulic pressure delivered to the wheel cylinders, while decreasing driver effort necessary to obtain acceptable stopping performance.

V...

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 -> GIRLOCK SINGLE DIAPHRAGM TYPE -> Assembly -> Brakes Grab -> Brakes Slow To Release Or Drag -> Brakes Slow To Respond -> DESCRIPTION -> Disassembly -> Excessive Pedal Effort -> OVERHAUL -> TROUBLESHOOTING
Vehicle: 1990 Oldsmobile 98 Regency Touring 3.8 V6 GAS

DESCRIPTION

This booster is a single diaphragm, vacuum suspended unit with a lightweight cast alloy housing,Fig. . Vacuum is applied to the front and rear housings. When the brake pedal is released, negative pressure is equalized on both sides of the diaphragm and power piston assembly. Spring tension holds the piston at the rest position. When the brakes are applied, the atmospheric port in the power piston is opened. Negative pressure in the front chamber pulls the diaphragm and vacuum piston assembly, reaction disc and output rod forward. Pressure on the master c...

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 details1993 Oldsmobile 98 Ignition Switch, 10-prong female terminal; A high quality, OE replacement ignition switch; With 2 years limited TrustBuilt warranty..

Source: Auto Body Parts Store

$66.38

Click here to view more details1987 Oldsmobile 98 Dimmer Switch, Blade type; 3-prong male terminal; A high quality, direct fit OE replacement headlight dimmer switch; With 2 years limited Trustbuilt warranty..

Source: Auto Body Parts Store

$17.14

Click here to view more details about 2002 Oldsmobile Intrigue 16" x 6.5" Alloy Wheel2002 Oldsmobile Intrigue 16" x 6.5" Alloy Wheel, Alloy Wheel; 16 X 6.5; 6 Spokes; 5 Lug; 115MM BP; Original Equipment Chrome, , .

Source: Wheels / Rims, Mirrors & Lights Store

$282.50

Click here to view more details1992 Oldsmobile 98 Regency V6, 3.8 L, 231 CID Rebuilt Engine, FWD, 3800, balance shaft, roller cam, 3/4" vent hole on left intake side., Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

$1,802.00

Click here to view more details1995 Oldsmobile 98 Used AM-FM-Cassette, AM-mono-FM-stereo-cass, Very Good.

Source: Used Auto Parts Store

$66.00

Click here to view more details1988 Oldsmobile 98 Used Alternator, 3.8, AUTO, FWD, Very Good.

Source: Used Auto Parts Store

$99.00
More parts
Help me findSearch
Auto Repair Quick Search
Help me find
Search DIY repair manuals by VIN...
Vehicle Identification Number is a unique serial number used by the automotive industry to identify individual motor vehicles

Find out what info we have for your vehicle

Get the Complete Technical Service Bulletins!
Get the Complete Technical Service Bulletins!Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 1990 Oldsmobile 98 vehicle.
Access the Complete guide!
Need To Fix Your Car or Truck?
Save Money With Free Car Insurance Quote
FREE car insurance quote
Enter Zip Code:
GOT A WEBSITE?Make money with Automotix

Make money with Automotix Partner Program.

Learn more

Auto Repair Quick Search
Help me find