i own a 2006 f-250 crew cab fx4 with 41,000 miles on it i tooker in to get some warrenty work done the ficm has a warrenty prob and the only way you'll know theres a prob is the fuel gauge will act sparatic and so i talked to the tech that fixed it who just so happened to be the shop forman and we got to talkin bout the egr probs the 6.0s have FORD now has a computer to go in and steam clean the egr valve for $300 bucks and then will come with a warrenty or pos replace it for $400 just the actual valve