[Ed C]

Took our 2019 3700LK out for a maiden voyage for a couple nights outside of Truckee, CA. Yes, it was cold! On our off day, took the F250 into town for a day of strolling and eating in downtown Truckee. On the way, we heard a loud "plink" from the back end. Pulled over, didn't see anything. Back on the road, nothing felt different. Fast forward to the next day - hitched up the 3700LK, and pulling over some small grades into Truckee, heading west, the truck did not have any power to tow. Had to find a place to leave the Monty, unload the food and some clothes, and head over Donner Summit without the load. Took it to the Ford Dealer in Auburn, and it turned out the turbo aftercooler line had detached. The "plink" that we heard was the clamp coming apart. Fixed that day, plus all the regular maintenance that was due, and went off to Truckee to pick up our Monty. It was fine - no freeze damage from the 14 degree overnight. (Afterthought - should have drained the tank and lines.) Auburn Ford did a fantastic job, and I highly recommend them if you are in town!
Oh, bottom line is they assured me that towing did NOT cause this problem - it was "just its time!"