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Oldsmobile 98 Engine Control Module (ECM) can fail

 
Oldsmobile 98 Problem
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Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995

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The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

  • Visitor, , 100,000 mi

    Haven't had it checked yet. Problem just started last night. Service-Engine-Soon light came on. Then periodic stalling of the engine. The light would go off for about 10 minutes of driving then come on again. I drove for about 15 miles (in-town driving, not freeway). The engine only stalled about 4 times during that 15-mile drive. The stall seemed to happen when slowing down to stop at an intersection or would stall immediately after coming to a complete stop. In every case of a stall, the engine would easily start up again with the turn of the key in the ignition.

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  • not fixed put in coil worked for awhile, doesn't turn over, back fire at first the fan kept running, unplugged it , then plug back in.Lights in the ac spot went to 18888 heater ac defrost fan all the way up could not turn off so i unplugged it.

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