2002 and up Ford F350 Diesel Engine Oil in Belly pan low fuel mileage.

Ford Diesel engine blows off the intake rubber intake hoses, blue in color with 7.0 Liter. If you have a problem with this engine as stated above there is an updated hose for the intake tubes also remove the intake pipe on the turbo side of the turbo remove the 10MM bolt that holds the metal tube on to the block and remove the clamp on the turbo, remove tube. Next look at the turbo shaft inside do you see oil in the turbo? If no then grasp the turbo shaft and try moving it up or down and in and out. Any Movement The turbo needs to be rebuilt before replacing the Turbo hoses. If there is oil in the turbo then it needs to be rebuilt so stop at this time and decide what you want to do with it.
The turbo also has a flapper valve inside the turbo that goes bad at about 100,000 this is the boost waste gate and boost flapper valve, it is an internal gate unlike the mechanical ones on most turbo. If you have low power check the boost pressure with your boost gauge if you have less than 12 pounds of boost then it's time to look at the turbo. Of the Turbo I have rebuilt I have increased fuel mileage by 30 percent. If you want the details of how to gain the extra mileage post a comment to me or ask this question and I will get back to you for the procedure.