Car idles very very rough while in drive and stopped/foot on brake. I've taken this up with the Ford dealer I purchased the car through with no help. The dealer keeps telling me its nothing that they don't know what I'm talking about, while Firestone says, yes its an obvious rough idle but can't find the cause of the problem. This issue started while my car was still under warranty now not under warranty 3 yrs later still have no resolution. Anyone else having these idling issues?