One problem related to loud engine noise has been reported for the 2012 Ford F-350. The most recently reported issues are listed below.
The "cold air tube/hose" for the turbo catastrophically ruptured and blew pieces and oil across the top of the engine. Maik haik Ford in pasadena texas said they see this failure occur about 2 times per month for my make, model, and year vehicle. My truck is only 6 years old. The delaership had 11 replacement hoses in stock. Ford appears to have since redesigned the part, but has not issued a recall or TSB to warn customers of this defective/poorrly designed tube. When I tried to file a claim with Ford the corporate warranty rep literally laughed after I told him that I was glad my head not under the hood at the time of failure. This was not an appropriate or professional response. Ford did not cover any of the material or labor. At the time of failure I was travelling about 30 mph on a freeway. At first I thought I blew a tire due to the very loud noise. Then the engine lost considerable power in the middle of heavy traffic on a freeway. The hose is located on the top of the engine near the fan shroud. Please investigate the extent of this problem and have Ford issue a recall and/or TSB for this part. Especially since the part appears to have been redesigned. Why did Ford redseign this part? the failure was instantaneous with no fore warnings of an impending failure.