Appologize now but I have searched for anything like this but have not found anything. I have a 2007 mega cab diesel. 514 miles on it now. 5. 5 in lift w/37s. Yesterday going back to work from lunch came to a stop sign and the idle dropped to almost 600 and the engine started shaking bad! Only happened for a couple seconds and the quit. Came to the next stop sign and it did it again. Has not happened since. Maybe air in the fuel? Had 1/8th tank when it did it. This is my first Dodge. Just sold 2 chevys to get it and I hope that I don't have any problems.