Question about 1993 Oldsmobile Cutlass Supreme

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91 oldsmoblie run rough when cold and idle very high when its hot

It is a 91 oldmoblie cutlass surperm run rough when cold idle very high when hot. done replace the temp. sensor twice, and replace the idle air control unit

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  • luv2trade84 May 02, 2009

    I have a 1993 cutlass and it idles at like 3000 rpm when started but sometimes dont

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Check for vacuum leaksaround the intake manifold.

Posted on Jun 10, 2012

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Try the throttle position sensor

Posted on Dec 20, 2008

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