Ford 6.7L Power Stroke Diesel :: 2014 F250 - Codes P207F And P04DB

I have a 2014 F250 CCSB that I bought new, I now have 41,000 mi on the truck. Earlier this year it had the P207F code come up and subsequently the computer derated the power to idle. I was able to get it to the dealership and they could not figure out why the truck had this code come up, it is an exhaust fluid CEL. They went through a sequence of steps to include holding the RPMs at 1800 and the 2500 for about 5-10 minutes until one of the EGT sensors hit a certain temp, then the code cleared from the computer. They gave me the truck back and told me it would likely happen again.

Over the summer I had this happen twice more, however these times, I cleared the code, ran the truck at 1800 rpm, and the code cleared, all would be ok for a while.

Then about 1.5 weeks ago the truck had both of the mentioned codes pop up the same day, first was the P04DB, I cleared it. Then the P207F came up, it would not clear. I dropped it off at the dealership. They were initially quite responsive, and again told me that they could not find a problem with the truck from a mechanical standpoint. However, they could not get the light to clear and the truck was stuck at idle. When they were able to get the light to clear it would come back on in 10 minutes, the idle message has never gone away.

Now it has been at the dealership for 1.5 weeks, I am having issues getting them to even give me an update on the status of the truck and what they plan to do to fix it. They did provide me with a loaner, for which I am grateful to not have to rent a car. However, these are expensive trucks, and I need it for my farm.