Question about 1987 Oldsmobile Ninety Eight

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Before engine is warmed up, the engine will kill unexpectedly.

This is the 3.8L V6, in a 24,000-mile mint condition 1987 Olds Ninety-Eight Regency Brougham. Before warmed up, the engine will kill several times unexpectedly, usually when slowing down or idling. It will start back up easily. Then, the engine will chug a bit and the car will lunge forward until it evens out. You don't even know the engine has killed until you see the red dash lights go on. This was a city car, hardly driven, but I have taken it on the open highway since 21,000 miles, and added a quart of GM fuel (injector) cleaner to the gas to clean engine. It's too soon to tell if that will work. Could it be a sensor, vacuum leak, computer malfunction or what? Car and engine are given good care.

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Sounds like crank sensor located behind crank pulley,or possible crank pulley comming apart.common

Posted on Jun 16, 2009

  • zeuzpowers May 29, 2010

    i got same problem changed fuel injectors, mass air flow sensor, throttle body, spark plugs, cam shaft sensor and then the crank sensor was the problem



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