low power, low boost pressure?
i just purchased a 05 powerstroke a few months ago with 150000 miles on in. Ever since i got it, i always noticed it was really slow, but seemed to run good. I never though much of it untill i drove my uncles chevy duramax to florida last week and noticed now much different they drove. the duramax had a lot of power throughout the rpm range and also got extemely good gas milage while towing. With a 3k trailer behind my powerstroke going 60mph on the interstate i get about 12mpg and my truck has to downshift everytime it has to pull uphill. Also the max boost pressure i can get it to is 20psi. (the duramax with a 10k tailer could probably beat my powerstroke with no tailer in a race) My truck runs great, doesnt blow any smoke. Could some of the vanes in the turbo be locked up? Any suguestions would be really appreciated. I purchased a warranty plan on this truck and i only have 300miles left on it. its kinda last minute but if there is something wrong, its always better to get it fixed for free.