Hi charliebrown111, Welcome to 2carpros and TY for the donation and selecting us as your auto repair site Feel free to ask questions at anytime and Merry Christmas and a Happy New Year 2010
Do you have a check engine light On or has flashed before and fade away and when was the last major tune-up? You need to answer this
Your probable causes here could be vacuum leaks, IACV-AAC valve, EGR and PCV valves, dirty fuel injectors, a weak fuel pump (low fuel pressure) or a faulty fuel pressure regulator. It can also be caused my ignition misfire due to worn or fouled spark plugs, bad spark plug wires, or weak ignition coil.
The important thing to keep in mind about vacuum leaks is that they have the most noticeable effect at idle
Friday, January 1st, 2010 AT 7:43 PM