Mechanics

ENGINE HAS HIGH REVING

1992 Ford F-150 • 95,000 miles

While driving, engine will race for no apparent reason. Sometimes will go back to normal RPM and then race again. Also when you start it, it will race high RPM.
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Dfehir
October 7, 2012.



Check the idle air control valve. If not, the throttle cable or throttle plate is sticking

Roy