Mechanics

OLDS DELTA , '92. STALLED, CHECK ENGINE LIGHT COMES ON, SPEDOMETER FAILS, THEN CORRECTS.

1992 Oldsmobile 88 • 6 cylinder • 104,000 miles

Enter your question.1992 Oldsmobile Delta 88 Stall, bogging. I pulled up to a stop sign and my car shut down. When I tried to restart it a couple times, it would try but wouldn't turn over. Then I tried turning it over while gunning the gas and it would turn on, then shut right back off. I did that a couple times then while it was off, put it in neutral and pushed the gas, when it turned on I threw it in to drive and kept moving. I thought maybe I got bad gas so I put some iso-heet in about 1/2 a tank of gas. It didn't help. About ten minutes later, it felt like the car lost almost all of it's power, it wouldn't accelerate well, the check engine light came on and the speedometer stopped working. A couple blocks later the car went back to driving normal, the spedometer worked again and the check engine light went off. It did this again about 2 miles after it did it the first time then drove fine again. I just has an oil change and transmission flush last week. Any idea what could be going on? Thank you!
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JillianCS
November 16, 2010.



I would remove the ingition module and have it tested, this is free at most autoparts stores.

Mmprince4000
Nov 16, 2010.
First thing you need to do is read the codes, look under the dash and find the ALDL, this is a small diagnostic connector then do this: PROCEDURES FOR READING GM FLASH CODES
1. Turn the ignition switch ON but do not start the engine.
2. The "CHECK ENGINE" light come on indicating the bulb is working. If the light fails to come on, the bulb may be burned
out or there may be a problem in the Check Engine light circuit.
3. Locate the diagnostic connector for the computer. It is usually located under the instrument panel near the steering
column. Insert a jumper between the "TEST" and "GROUND" terminals.
CAUTION: Refer to a shop manual for the proper terminal locations. Jumping the wrong terminals may cause damage to the
computer system!
4. The Check Engine should now flash. The first code should be a code 12 (Flash, Pause, Flash Flash). Code 12 will repeat
two times.
If any other trouble codes are in the computer's memory, they will be displayed in numerical order starting with the lowest
number, and repeat three times. The codes will continue to repeat as long as the test terminal remains grounded.
NOTE: BE SURE TO WRITE DOWN ANY CODES THAT ARE PRESENT
NOTE: GM may use the same code number for different faults on different models of vehicles. That's why some code
numbers list more than one possible cause.
5. To exit diagnostic mode, turn ignition switch off and remove the jumper.
HOW TO CLEAR TROUBLE CODES
Trouble codes on most older vehicles can be cleared by removing battery voltage from the computer for at least 10 seconds.
Make sure the ignition switch is OFF, then remove the computer fuse from the fuse panel. Disconnecting the battery will also
work, but doing so will also cause the loss of stored information and presets in other electronic accessories such as the
radio, climate control system, memory seats, etc. Disconnecting the battery can also cause the computer to forget long term
fuel calibration adjustments, and may affect the operation of an electronic transmission until the computer can "relearn" the
shift points.
The preferred method of clearing trouble codes is to use a scan tool.
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Merlin2021
Nov 16, 2010.

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