Thanks Jim W,
I just went through my 3 inch book of repairs made on this truck, I have 155K miles on it. The dealership told me to change the fuel filter once a year. I was just told by a Diesdel mechanic to change it every time I do an oil change (around 5K miles with the oil that I use. Getting back to my book, and the list of things you guys on this forum told me to check. In 2013 on a trip the CEL came on, I took it to the dealership out of state and the paper works says that the codes were P1011 and P2563. They replaced the turbocharger and fuel lift pump. At 146K CEL came on again, the dealer paper works says that they replaced the EGR valve. This truck has had a history of CEL starting at 700 miles on the truck. I don't even want to start adding up all the money I have put into this truck, it would just make me mad. I do love my truck but don't love all the repairs made and dollars spent.