1986 Oldsmobile 98 problems

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The Oldsmobile 98 (spelled Ninety-Eight from 1952 to 1991, and Ninety Eight from 1992 to 1996) is the full-size flagship model of Oldsmobile that was produced from 1940 until 1942, and then from 1946 to 1996. The name – reflecting a "Series 90" fitted with an 8-cylinder engine – first appeared in 1941 and was used again after American consumer automobile production resumed post-World War II. It was, as it would remain, the division's top-of-the-line model, with lesser Oldsmobiles having lower numbers such as the A-body 66 and 68, and the B-body 76 and 78. The Series 60 was retired in 1949, the same year the Oldsmobile 78 was replaced by the 88. The Oldsmobile 76 was retired after 1950. This left the two remaining number-names to carry on into the 1990s as the bread and butter of the full-size Oldsmobile lineup until the Eighty Eight-based Regency replaced the 98 in 1997.

Occasionally additional nomenclature was used with the name, such as L/S and Holiday, and the 98 Regency badge would become increasingly common in the later years of the model. The 98 shared its General Motors C-body platform with Buick and Cadillac.

Since it was the top-line Oldsmobile, the series had the most technologically advanced items available, such as the Hydramatic automatic transmission, the Autronic Eye, an automatic headlight dimmer, and Twilight Sentinel (a feature that automatically turned the headlights on and off via a light sensor and a delay timer, as controlled by the driver), and the highest-grade interior and exterior trim.

1986 Oldsmobile 98

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Common 1986 Oldsmobile 98 problems

The Oldsmobile 98, produced from 1940 to 1942 and then from 1946 to 1996, was the flagship model of Oldsmobile, known for its luxurious features and advanced technology. However, like any car, the 1986 Oldsmobile 98 had its share of common problems.

One issue that frequently arises with the 1986 Oldsmobile 98 is a misfire, shaking, and popping out of the exhaust, particularly in the V6 3.8 engine. This problem can occur at idle and worsen under a load. The cause of this issue can be difficult to diagnose, as it may be due to a variety of factors, such as components being out of time or spark plug wires not being connected in the correct order. It is crucial to ensure that all sensors, coils, plugs, and injectors are functioning correctly to address this problem.

Another common problem with the 1986 Oldsmobile 98 is a lack of spark, which can be caused by various factors, including issues with the ignition module, crankshaft, and camshaft sensor. In some cases, changing the ignition module, crankshaft, and camshaft sensor may not resolve the issue, and it is essential to check the camshaft sensor (CSM) and ensure that there is power to the ignition module under the coil pack. Additionally, checking for damaged wires in the vicinity of the ignition module and ensuring that the ground wire or wires connecting to the module/coil pack bracket mounting bolts are secure can help address this problem.

These are just a few of the common problems that owners of the 1986 Oldsmobile 98 have reported. It is essential to address these issues promptly to ensure the safe and reliable operation of the vehicle. Regular maintenance and inspections can help identify and prevent potential problems before they become serious issues.

1986 Oldsmobile 98 engine

What does the 98 in Oldsmobile mean?

In 1941 both engines were offered on each series so to differentiate between the two the second digit was used to denote the number of cylinders, so the Custom Cruiser 90 was replaced with the Custom Cruiser 96 and 98. In 1942 Oldsmobile dropped the six cylinder Series 90 model leaving only the Custom Cruiser 98.

What was the last year of the Oldsmobile 98?

But personally, I feel like Oldsmobile died when they discontinued the 98 in 1996, as it was the last one to carry the torch lit by the brand in its mid-century heyday—big, American cars that transported us in comfort and style.

How much does a 1987 Oldsmobile 98 weight?

Wheelbase was 110.8 inches, with an overall length of 196.4 inches. Curb weight was 3316 pounds (for the 1987 Regency Brougham sedan).

How much horsepower does a 1973 Oldsmobile 98 have?

250 HP

Engine equipped with 455 ci V8 and 250 HP with automatic transmission.

What does the 98 in Oldsmobile mean?

In 1941 both engines were offered on each series so to differentiate between the two the second digit was used to denote the number of cylinders, so the Custom Cruiser 90 was replaced with the Custom Cruiser 96 and 98. In 1942 Oldsmobile dropped the six cylinder Series 90 model leaving only the Custom Cruiser 98.

How much does a 1987 Oldsmobile 98 weight?

Wheelbase was 110.8 inches, with an overall length of 196.4 inches. Curb weight was 3316 pounds (for the 1987 Regency Brougham sedan).

What is a 1995 Oldsmobile 98 worth?

The value of a used 1995 Oldsmobile Ninety-Eight ranges from $14 to $80, based on vehicle condition, mileage, and options.

How much horsepower does a 1976 Oldsmobile 98 have?

Its 455-cubic-inch V-8 was rated 190 horsepower and 350 lb-ft of torque, and a new 2.41:1 axle ratio was fitted for fuel "efficiency." Gas is Florian's biggest cost; he claims about 9 mpg.

1986 Oldsmobile 98 car problems categorized by type of issue

After analyzing all complaints sent to the NHTSA and researching popular Oldsmobile 98 problems, we found that the most common problems with these 2023 model year vehicles are:

  • Service brakes problems
  • Hydraulic problems
  • Steering problems
  • Suspension problems
  • Equipment problems

The graph below shows statistics for all 1986 Oldsmobile 98 vehicle components and the number of complaints received.

1986 Oldsmobile 98 complaints

The NHTSA has received 13 complaints about various vehicle components related to the 1986 Oldsmobile 98.

2008-01-02

SUSPENSION,EQUIPMENT PROBLEM

  • Date Of Incident: 2006-06-14
  • Components: SUSPENSION,EQUIPMENT
  • Summary: TL*THE CONTACT OWNS A 1986 OLDSMOBILE 98. THE CONTACT STATED THAT HE BOUGHT AFTER-MARKET BALL JOINTS (MODEL # FA1478) FOR A ROUTINE REPLACEMENT. AS A RESULT, THE VEHICLE FAILED THE STATE SAFETY INSPECTION ON TWO OCCASIONS. THE MANUFACTURER OF THE PARTS WAS BEST PARTS, INC IN MEMPHIS, TN. UPDATED 01/29/08. *LJ UPDATED 01/29/08 *TR
2003-10-01

SERVICE BRAKES, HYDRAULIC PROBLEM

  • Date Of Incident: 2003-06-02
  • VIN: 1G3CW69B4G1
  • Components: SERVICE BRAKES, HYDRAULIC
  • Summary: BRAKES DO NOT WORK PROPERLY, THEY FELT VERY SPONGY IN THE MORNING. *AK THE BRAKES WERE FIXED AND REMAINED INOPERATIVE WHEN FIRST STARTED IN THE MORNING. *SCC *JB
1998-02-05

SERVICE BRAKES, HYDRAULIC PROBLEM

  • Date Of Incident: 2024-11-24
  • VIN: 1G3CW69DXG4
  • Components: SERVICE BRAKES, HYDRAULIC
  • Summary: WHEN COMING TO A STOP THE ABS SYSTEM FAILED, RESULTING IN EXTENDED STOPPING DISTANCE. THE DEALER HAS BEEN CONTACTED. *AK
1997-08-07

SERVICE BRAKES, HYDRAULIC PROBLEM

  • Date Of Incident: 1997-05-15
  • VIN: 1G3CW69B8G4
  • Components: SERVICE BRAKES, HYDRAULIC
  • Summary: BRAKE LINE (HOSE) BROKE, CAUSING BRAKE FAILURE.
1996-10-02

ELECTRICAL SYSTEM PROBLEM

  • Date Of Incident: 1996-09-29
  • VIN: 1G3CW69BXG4
  • Components: ELECTRICAL SYSTEM
  • Summary: WHILE DRIVING VEHICLE WOULD STOP WHILE TURNING CORNERS OR WHILE GOING DOWN THE ROAD, WOULD LOSE POWER COMPLETELY, VEHICLE WOULD ALSO JERK, THIS IS AN INTERMITTENT PROBLEM. *AK
1996-04-19

STEERING PROBLEM

  • Date Of Incident: 1996-04-19
  • VIN: 1G3CW69B764
  • Components: STEERING
  • Summary: 'COLD POWER STEERING'. *DSH
1996-01-18

STEERING PROBLEM

  • Date Of Incident: 2024-11-24
  • VIN: 1G3CW69B1G4
  • Components: STEERING
  • Summary: THE RACK AND PINION NEEDS TO BE REPLACED . TT
1995-12-01

STEERING PROBLEM

  • Date Of Incident: 1993-07-19
  • VIN: 1C3XC66R2ND
  • Components: STEERING
  • Summary: STEERING BELT TENSIONER BROKE ALMOST LOST CONTROL OF VECHICLE. PLEASE DESCRIBE. TT
1995-08-25

SERVICE BRAKES, HYDRAULIC PROBLEM

  • Date Of Incident: 1995-01-01
  • VIN: 1G3CW69BXG4
  • Components: SERVICE BRAKES, HYDRAULIC
  • Summary: LEFT REAR WHEEL SENSOR FAILED, CAUSING WARNING LIGHT TO COME ON. *DH
1995-07-11

SERVICE BRAKES, HYDRAULIC PROBLEM

  • Date Of Incident: 1995-05-01
  • VIN: 1G3CW69BXG4
  • Components: SERVICE BRAKES, HYDRAULIC
  • Summary: ABS SYSTEM FAILED AND THE COMPANY NO LONGER MAKES THE PART TO CORRECT IT, SO NOW THE CAR CANNOT BE DRIVEN BECAUSE IT HAS NO BRAKING SYSTEM. *AK
1995-06-21

SERVICE BRAKES, HYDRAULIC PROBLEM

  • Date Of Incident: 2024-11-24
  • VIN: 1G3BP35Y1G9
  • Components: SERVICE BRAKES, HYDRAULIC
  • Summary: HYDRAULIC POWER ASSIST HAS FAILED WITH BRAKE PEDAL START HIGH RIDING AWHILE THEN BECOMES VERY LOW. EA88-019. TT
1995-06-13

STEERING PROBLEM

  • Date Of Incident: 1995-06-13
  • VIN: 1G3CW69B1G1
  • Components: STEERING
  • Summary: 'COLD POWER STEERING'. *SD
1995-03-02

SUSPENSION PROBLEM

  • Date Of Incident: 1995-03-02
  • VIN: 1G3CW69B6G1
  • Components: SUSPENSION
  • Summary: SHOCK ABSORBERS/FRONT STRUTS FAIL, CAUSING VEHICLE TO WANDER SIDE TO SIDE/LOSS OF TRACTION AT SPEEDS OF 70 MPH AND ABOVE. *SKD

1986 Oldsmobile 98 recalls

The National Highway Traffic Safety Administration (NHTSA) has issued 3 recalls for different components of the 1986 Oldsmobile 98.

2006-05-19
  • Manufacturer: HONEYWELL INTERNATIONAL, INC.
  • Components: FUEL SYSTEM, GASOLINE
  • Summary: CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.
  • Consequence: THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.
  • Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).
1987-06-23
  • Manufacturer: GENERAL MOTORS CORP.
  • Components: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP
  • Summary: THE ANTI LOCK BRAKE SYSTEM (ABS) PRESSURE/WARNING SWITCH MAY EXHIBIT BRAKE FLUID SEEPAGE WHICH EVENTUALLY CAN LEAD TO LOSS OF THE BRAKE SYSTEM HYDRAULIC PUMP MOTOR. ADDITIONALLY, THE HYDRAULIC PUMP MOTOR AND ABS ELECTRICAL RELAYS MAY HAVE BEEN EXPOSED TO WATER CONTAMINATION DURING VEHICLE ASSEMBLY. THIS CONDITION CAN CAUSE LOSS OF THE HYDRAULIC PUMP MOTOR AND/OR LOSS OF THE ABS FUNCTION.
  • Consequence: LOSS OF THE HYDRAULIC PUMP MOTOR WOULD RESULT IN A TOTALLOSS OF REAR BRAKES AS WELL AS POWER ASSIST TO THE FRONT BRAKES. THE RED BRAKEWARNING LIGHT WOULD ILLUMINATE AND STAY ON. IF THIS WARNING IS NOT HEEDED, ALOSS OF REAR BRAKES AT A TIME WHEN MINIMUM STOPPING DISTANCE IS REQUIRED COULDRESULT IN A VEHICLE CRASH. AN INOPERATIVE ABS ELECTRICAL RELAY COULD CAUSELOSS OF THE ABS FUNCTION, BUT NORMAL POWER ASSISTED BRAKING WOULD BE RETAINED.THE AMBER ANTI LOCK WARNING LIGHT WOULD ILLUMINATE AND STAY ON.
  • Remedy: THE ABS AND HYDRAULIC PUMP MOTOR ELECTRICAL RELAYS AND 30 AMP FUSES WILL BE REPLACED. IN ADDITION, THE HYDRAULIC PUMP MOTOR ASSEMBLY AND PRESSURE/WARNING SWITCH WILL BE INSPECTED AND, IF REQUIRED, REPLACED.
1986-11-03
  • Manufacturer: GENERAL MOTORS CORP.
  • Components: STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS
  • Summary: THERE MAY NOT BE ENOUGH CLEARANCE BETWEEN THE POWER STEERING PUMP RETURN HOSE AND THE ENGINE EXHAUST MANIFOLD. CONSEQUENCE OF DEFECT: HOSE COULD OVERHEAT, RESULTING IN A HOLE AND FLUID LEAK, AND A POSSIBLE ENGINE COMPARTMENT FIRE WITHOUT PRIOR WARNING.
  • Remedy: REPLACE AND CORRECTLY ROUTE HOSE, AS NECESSARY.
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Additional sources

More sources of information about 1986 Oldsmobile 98 problems:

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Other years of Oldsmobile 98

oldsmobile 98 1987 photo
98 1987
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98 1988
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98 1989
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98 1990
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98 1992
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