1998 Oldsmobile Cutlass rpm

1998 OLDSMOBILE CUTLASS
158,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JCHAMBE3
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my cars rpms r bouncing around and i dont know why the check engine lite was on it said crank shaft position censore so i replaced that and the harmonick balancer and spark plugs and wires but it is still doing it but not as bad and now the lite stays off can u help me
Sep 13, 2010 at 5:12 PM
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JACOBANDNICKOLAS
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Have you checked for vacuum leaks? Have you checked the idle air control motor?

Let me know.
Joe
Nov 2, 2010 at 10:49 AM