I'm experiencing the same rough idle issue as well. My dealer told me that I had carbon deposits built up in my intake and needed a fuel induction service. Well, before heading to Charlotte, which was roughly 250 miles from my home in Georgia, I had the fuel induction service done. I lost 2 miles per gallon on that trip, and have yet to recoup any of it 2500 miles later. am I pissed? between this and the excessive slip yoke bump in my truck I'm ready to throw the damn thing in the river! Driving this truck sucks right now.