Only thing I heard about was the flamethrower which was easily fixed with a reflash, but I just found this:
Latest Technical Information
Some F-Super Duty vehicles equipped with the 6.4L diesel may exhibit one or more of the following concerns: lacks power, leaks oil, fuel or coolant from the tail pipe, abnormal tailpipe sediment, white smoke or ash, exhaust smell, knock or rattle, elevated idle, surge, crankcase oil level over-full, MIL On, DTC's P0087, P2291, P0263-P0284, P0300-P0308, P1336, P132B, P2262, P2263, P244C or P244D. If you are experiancing any of these concerns, then take it to your dealer and have them refer to TSB # 07-8-9
Latest Technical Information
Some F-Super Duty vehicles equipped with the 6.4L diesel may exhibit one or more of the following concerns: lacks power, leaks oil, fuel or coolant from the tail pipe, abnormal tailpipe sediment, white smoke or ash, exhaust smell, knock or rattle, elevated idle, surge, crankcase oil level over-full, MIL On, DTC's P0087, P2291, P0263-P0284, P0300-P0308, P1336, P132B, P2262, P2263, P244C or P244D. If you are experiancing any of these concerns, then take it to your dealer and have them refer to TSB # 07-8-9