My 2015 RAM Eco Diesel experienced catastrophic failure going down the freeway at 72mph. This happened a few weeks after having the emmisions remapping recall performed. I began to hear a loud "clacking" or "tapping" kind of sound at first. I slowed down a little and back up to see if the sound changed with the engine, it did. I thought I had better pull over and then BAM, the truck completely shut down and I only had time to steer across 3 lanes of traffic and off a ramp part way, thank God no traffic then. At the dealer, they found large pieces of metal in the oil pan. The dealer has replaced the engine under warranty, however, I am less then pleased and have little confidence in this engine now. Anyone else experience this? Thanks.