Took the truck to the dealer and......
Well as some may know I recently purchased a used 08 6.4L. I recently noticed my coolant was low. I brought it in today to get it looked at turns out the radiator hose is keeling as well as the radiator!!!! It is being covered under warranty but I'm still beyond my self that the dealer did not diagnose/service it well enough to figure this out!! I'm having my original dealer do the work for me as I will never buy anything from them again! Just wanted to vent