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My engine revs up and down while in idle and also shakes real bad at high rpms.

(1993 Ford Explorer)
in Salina, KS on March 22, 2012
Could it be a motor mount problem? The idle problem is maybe a sensor or do I need a new ECU? because the cruise control doesn't work either.
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Popular Answer
of Greg's Orange Auto on March 22, 2012
i think you should spend 100.00 and get a prof diag. don' guess its costly
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