A TSB is a "technical service bulletin" issued by Ford to its dealers. IF, a customer has that problem, the TSB will tell them how to fix it. If still under warranty, no cost to you(like the trans. reprogram). I don't have the exact numbers of the TSB's, but I'm sure they can be found somewhere in this website. Take a flashlight and look and see if all the exhaust bolts are present. If they are, just keep an eye on them, as both sides of my motor went out about 3 weeks ago(66K miles). Its actually the studs that are in the cylinder head that are breaking.