I have a 2011 F350 with 4500 miles on it, bought it in November 2010, have had engine noises and knocking since late December. It has been to the dealership 4 times now and still no help.
It had a engine light come on on April fools day, but it was not a joke. they say that it has to do with NOx sensor but they cannot fix it. this is only a small portion of the issues I have with my truck.
I have intermittent loss of power, very loud engine knock sounds that come and go, it has went into neutral while driving down the road, it has lost connection between the pedal and the motor meaning that while driving my truck it has lost drive-ability the gas pedal did not make the engine respond, i has to stop the vehicle and then it began to work again but then it repeated the same problem again, it would not work until the motor went to full idle and the truck was stopped. I have also had "shudder" problems where the truck will shudder and it seems confused if it should go or stop.. very hard shaking. I have talked with ford engineers and they are thinking some kind of calibration that they are working on will fix it, meanwhile I am stuck with a $42,000 paperweight.. Not happy at alll....
both of my local dealerships are no help, I understand that it is a new platform so they will not be familiar with the engine yet, but when I buy something this expensive I don't expect to be the R&D guinea pig for the manufacturer. I just wanted to buy the most reliable most powerful , quietest diesel around. Instead I got a lemon. again I am not happy at all.
any thoughts? thanks for listening to me whine.