MaxMustang Posted November 20, 2011 Report Share Posted November 20, 2011 The idle speed on my 2005 Mustang GT hunts a little especially at cold. If I tap the pedal it will dip below 500rpm before it settles somewhere near 750. Does anyone know what this might be a symptom of? Link to comment Share on other sites More sharing options...
socalwrench Posted February 4, 2012 Report Share Posted February 4, 2012 Stuck IAC valve perhaps? Vacuum leak in the engine? Faulty ECT sensor? These are just the first ideas that I came up with. Greg Link to comment Share on other sites More sharing options...
Frank S Posted February 5, 2012 Report Share Posted February 5, 2012 Y'all don't recognize a Texas drawl when y'hear it? It's just clearing its throat before bellowing like a bull cobra... Link to comment Share on other sites More sharing options...
Glenn Greenwell Posted February 5, 2012 Report Share Posted February 5, 2012 Mike be a good idea to check engine codes GG Link to comment Share on other sites More sharing options...
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