The last few days my 2001 Ford-F250 has lost power. Acceleration is very effected, and I can't go over 58mph when hauling my trailer, unless it's downhill, even with the pedal to the floor. (it has been easy to pull before this developed) If I keep trying it will only down shift and run at a very high rpm but not really faster. Any ideas on the issue? Engine, turbo? Anything I could check?

Thanks

 

Found a hose loose at the turbo. Connected it and it runs fine now.