I have a 03 F250 diesel with 20k miles. I was pulling a 4k # tractor the other day and I heard what sounded like the turbo making a really loud noise, started losing power and saw lots of black smoke exiting the exhaust. I shut it down had it towed and fixing to bring it to the shop. For the past 2 yrs I had to bring it in twice for turbo related issues, once a sensor was out (kept hesitating) and then the turbo went out (kept losing power; wouldn't go over 40mph) NOW i'm disgusted. I opened the breather and saw what looked like vanes from the turbo along with a strong smell of oil? Whats the deal?