My 2013 Ram with 68000 miles on it has started to give me problems with the transmission and I was wondering if anyone has had a similar issue? The truck made a loud popping noise yesterday as I was driving it and now is stuck in 4th gear and will not upshift or downshift. I tried shutting off the motor , restarting, and going from park, to reverse, to drive. It will momentarily show it is in drive but will default to 4th gear on the instrument panel readout Reverse works. It is a four door 1500 with 5.7 hemi. Does anyone have any ideas? I will take it in to the dealer tomorrow.