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Engine idle rpms goes up and down

(1995 Ford Probe)
in Euclid, OH on April 14, 2009
Engine rpm's goes up and down ,and the overdrive lamp flashes prereodicly. car won't continue to drive when this happens then rpm's goes down car goes agan.
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Popular Answer
on May 05, 2009
sounds like your idle air control valve is bad,
on July 12, 2012
same problem. Make real sure your radiator fluid is totally full. I found that the intake manifold gasget had got so hot it curled up at the top corner tip. allowing air to get in unregulated. also check to see if your air intake tubing has NO leaks or cracks between your mass airflow unit and throttle body.
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