Two problems related to diesel engine have been reported for the 2015 Ford F-250. The most recently reported issues are listed below.
2015 powerstroke 6. 7 diesel engine has <15,000 miles. Hammering of engine at all speeds. Lasting less than 8-10 seconds in duration. According to TSB 15-0124 this is a valve and valve guide clearance issue that Ford appears well aware of. Recommending major engine work to possibly fix design flaws. The loss of power during operation is dangerous. Vehicle has been in the shop for this issue. Powerstroke forums across country showing this to be a major issue with the 2015 6. 7 diesel engine with problems starting as early as 4,000 miles.
The vehicle runs rough, shakes violently and pings loudly when the diesel engine goes through the exhaust cleaning process. The vehicle loses power and requires 1-2 minutes to recover. The condition had occurred at various speeds but mainly when traveling 50-65 mph on multi lane highways.