Mechanics

FORD TAURUS ENGINE PROBLEM

2005 Ford Taurus • 140,000 miles

When starting, the engine revs high, dives down (in colder weather, has stalled), then levels off. This is without touching the accelerator. I would understand if a foot were on the gas that it might do this. Any thoughts?
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April 9, 2013.




Sounds like the Idle Air Control Valve, IACV is bad and needs replacement. When replacing make sure ports in throttle body and intake are clean.



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