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Why does your idle fluctuate from 750-1000 rpm on your 1997 5.7 pickup?

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Answered 2007-01-10 17:43:44

could be a number of things, but i would try cleaning the throttle body and MAF sensor. mine started to do the same thing and a good cleaning solved the problem. make sure to use the correct cleaner as carb cleaner can damage the plastic and the MAF.

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