i have a 2007 cadillac sts. what does it mean when you have the a/c on in idle and the car shutters a little?? please advise.
Could be the ECM is not seeing the A/C signal so it is not bumping up the idle to compensate, IAC could be stuck or plugged, A trusted shop should really check this one.
would this result in the check engine light flashing 4-5 times then stop??? please advise
Yes have the codes read for you,most parts stores will do this for free, write them down and come back here so we can help you with diagnosis.
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