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1991 Oldsmobile 98 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Oldsmobile 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 1991 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 Oldsmobile 98 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 Oldsmobile mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 1991 Oldsmobile 98 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 1991 Oldsmobile 98 AUTOMOBILES

    A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Buick Electra, LeSabre & Park Avenue, Oldsmobile Eighty-Eight, LSS, Ninety-Eight & Regency & Pontiac Bonneville
    Vehicle: 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

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    CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 1991 Oldsmobile 98 AUTOMOBILES

    DISC BRAKES, GENERAL MOTORS -> Delco-Moraine Single Piston w/Dual Mounting Bolts (Type 2) -> DESCRIPTION
    Vehicle: 1991 Oldsmobile 98 Regency Elite 3.8 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 1991 Oldsmobile 98 BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Oldsmobile 98 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: 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 FUEL FILTER REPLACEMENT PROCEDURES

    DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Oldsmobile 98 AUTOMOBILES

    CV AXLE SHAFT, Replace
    Vehicle: 1991 Oldsmobile 98 Regency Touring 3.8 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...

    CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Oldsmobile 98 AUTOMOBILES

    Starter, Replace
    Vehicle: 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    When removing starter, note if any shims are used between the starter and mounting surface. If shims are found, reinstall in original locations.

    If starter is noisy during cranking, remove one .015 inch double shim or add one .015 inch single shim to the outer bolt. If starter makes a high pitched whine after engine start, add .01...

    CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Oldsmobile 98 AUTOMOBILES

    General Motors Corp./Saturn Cars -> Active Handling System Warning Lamp ->
    Vehicle: 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    This lamp should light for a approximately 6-8 seconds when the ignition is turned on as a bulb check. The lamp will also come on as the system is...

    CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Oldsmobile 98 AUTOMOBILES

    Radiator, Replace
    Vehicle: 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    • Disconnect battery ground cable.
    • Drain engine coolant into a suitable container.
    • Remove upper fan mounting bolts.
    • Remove upper radiator panel.
    • Remove coolant hoses from radiator and coolant recovery tank hose from radiator neck.
    • Disconnect coolant fan electrical co...

    CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Oldsmobile 98 AUTOMOBILES

    Serpentine Drive Belt, Replace
    Vehicle: 1991 Oldsmobile 98 Regency Elite 3.8 V6 GAS

    • Rotate tensioner counterclockwise, using a suitable tool to re...

    CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR 1991 Oldsmobile 98 AUTOMOBILES

    Component location diagrams for most 1991 Oldsmobile 98 cars and light trucks sold in the U.S. from 1990+.

    Lower Rear Of Engine Diagram for 1991 Oldsmobile 98 Regency Touring 3.8 V6 GASLower Rear Of Engine Diagram for 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    Components on diagram:
  • Oxygen Sensor
  • Below LH Front Seat Diagram for 1991 Oldsmobile 98 Regency Touring 3.8 V6 GASBelow LH Front Seat Diagram for 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    Components on diagram:
  • Computer Command Ride Controller
  • CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 1991 Oldsmobile 98 AUTOMOBILES

    OEM drawn wiring diagrams for most 1991 Oldsmobile 98 cars and light trucks sold in the U.S.

    1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS Wiring Diagram1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Head/Park Light Switch
  • LH Rear Side Marker Light
  • RH Rear Side Marker Light
  • LH Tail Light Assembly
  • RH Tail Light Assembly
  • 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS Wiring Diagram1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Head/Park Light Switch
  • Adaptive Lamp Monitor Module
  • LH Composite Headlight Assembly
  • RH Composite Headlight Assembly
  • LH Beam Indicator
  • CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 1991 Oldsmobile 98 AUTOMOBILES

    OEM TSB listings for most 1991 Oldsmobile 98 cars and light trucks sold in the U.S. from 1985+.

    Document: Car and Truck Fix It Right the First Time Issues
    Vehicle: 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED
    Vehicle: 1991 Oldsmobile 98 Regency Touring 3.8 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • CLICK HERE TO GET FULL ACCESS TO 1991 Oldsmobile 98 TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 1991 Oldsmobile 98 AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Oldsmobile 98 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 1991 Oldsmobile 98 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 1991 Oldsmobile 98 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 1991 Oldsmobile 98 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 1991 Oldsmobile 98 SPECIFICATIONS DATA!

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

    Click here to view more details about 1995 Oldsmobile 98 Grille Assembly1995 Oldsmobile 98 Grille Assembly, With emblem provision, gray frame, and black bar grille insert; A high quality, direct fit OE replacement grille assembly..

    Source: Auto Body Parts Store

    $145.94

    Click here to view more details1995 Oldsmobile 98 Brake Light Switch, Blade type; 2-prong and 4-prong male terminals; A high quality, direct fit OE replacement brake light switch; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $9.21

    Click here to view more details about 1996 Oldsmobile Ciera 14" Wheel Cover1996 Oldsmobile Ciera 14" Wheel Cover, Wheel Cover; 14 Inch; 13 Slots; Silver, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $27.50

    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 details1987 Oldsmobile 98 Used Wiper Motor Front, LESABRE, Very Good.

    Source: Used Auto Parts Store

    $66.00

    Click here to view more details1991 Oldsmobile 98 Used Rear Vent Window, Driver Side, Very Good.

    Source: Used Auto Parts Store

    $80.00
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