One problem related to engine turbo-charger has been reported for the 2005 Ford F-350. The most recently reported issues are listed below.
Turbo pipe blew off going uphill towing a horse in trailer, lost most of my power, speed dropped to 40 mph with trucks bearing down. Put clamp back on did it again 50 miles later. Dealership told me rust formed inside turbo if I did not drive it hard or correctly. I did'nt think I bought a truck with instructions how to rive it !.