Alright , I just got a 2006 powerstroke turbo, 2000 miles plus. Ran great but I was Ware of the issues that came with it. I drove it 500 miles, and came across the cash to to the head studs and everything else except the egr delete. After the studs , it was ipr, two starter, loose egr , . Now runs but at 2200 rpm, It backfires. At 1100 to 1200 rpm, It rattles and shakes bad . Almost like a belt in the tires is broke. Had to put a new ficm in a few months ago. At this point it should be a decent running truck. But I constantly got blue smoke while giving it throttle, And black smoke when backfiring. Only at certain rpms. So close to getting rid of it. Tired of throwing money and parts. I ain't rough on it , and know it's potentially a good truck. Any ideas.