I have a 2011 F250 6.7 that I bought in August of 2010. I have 35K miles on it and it has pretty much been trouble free once I got the firmware update for the shifting issues. I have the local dealership do all of my service work and all updates and service bulletins have been applied. Unfortunately on my way to work this morning the stupid Check Engine Light came on. The dealership has it now - hopefully I will know tomorrow.... I do think it has been running a little sluggish but I am not sure if that is the winter grade diesel (I use PM22-A in every single tank).

-gascan

 

keep us informed, but it's likely a sensor or something minor. Good luck!

 

My last 2 CEL's were for the EGR valve first time and then a month later for the EGR cooling coil. Since replacing the EGR cooling coil the truck has been super smooth in all aspects.

(I hope I didn't just jinx it)