Bart, I am sorry to here you are having problems with your ram, My name is Jack (MR.PUTTPUTT) I do believe that the issue you are having is with the a/c pump on your truck what I need you to do is open the hood and look at the a/c pump and see if the rough running is when the pump is kicking in and out, are you familiar with the a/c pump?, on your truck the a/c pump runs when the defrost is on in the truck. please let me know what you see with the pump.
Jack, thanks for responding. Yes the rough idle has to do with the pump clicking on and off. When it runs rough, the pump stops rotating and when it kicks back on, it rotates again and the rough idle is gone.
I thought about it I know it'll be cheaper if I did it but I'm not that experienced with the AC
Thanks so much I really appreciate it