Last March I traded my 2001 excursion with 7.3 for a new 2016 F150 with 2.7 ecoboost as I would not be towing my tractor anymore, only a 20 ft toyhauler trailer that weighs about 6000 lbs with it loaded. Well in August my wife and I decided to take a 3200 mile trip pulling the toy hauler, we stopped for gas at one location and the truck stalled, restated it and it stalled again, this happened about 12 time going to our destination so stopped at a Ford dealer and was told they couldn't do any thing for us since the check engine light was not on. We headed back home and again it stalled about 15 times, so when we got home we took it to our dealer. We were called to pick it up 4 time and they said they couldn't find the problem. It stalled again and took it back again they couldn't find the problem. Finally after contacting customer relations they put a flight recorder on it and sent me out to duplicate the problem, after 250 miles of towing the toyhauler it stalled again 4 times. I dropped it off 3 days ago with no answer. What would you do? One way or another I feel it will need to be replaced. Thanks in advance