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2002 Pontiac Sunfire Question: surging when idles

 

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happymommy, 2.2L 4 Cylinder, Martinsville, IN, April 26, 2011, 18:53
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I have a 2002 pontiac sunfire that when it idles it surges we have replaced the altinator and the spark plugs also the idle sensor, What else could the problem be?

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, April 26, 2011, 21:23
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     Master

    Low coolant level, bad coolant temp switch, or a vacuum leak are common causes of surging idle but proper diagnostic tests need to be done to determine whats wrong.

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  • Answer #2

    eric lowenthal June 30, 2011, 10:25
     Rookie

    ineed an answer

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