Hello everyone I'm a newbie here. I've been reading a lot of the thread's and think I know what the problem might be but would love some advice. Ok to start in have a 04 with the 6.0 had the truck for about 5 years and until now no troubles. It started about a month ago started having temp. problems. Replaced water pump, radiator, reservoir and hoses. Worked fine until last week my wife drove to another town about a hour and a half away. Drove all day with no problems came home made one last stop. Then it cranks but doesn't start. Trailered it home. Tried to start it the next day but nothing. Scanner gives p0403 and p0405 codes which I understand are egr codes but truck has had egr delete kit installed before I bought the truck. From what I've read I've checked the ficm has 48v the icp has .28v which seem to be right wear it should be. Is there a way to check the hpop. I don't have many of the correct tools so any suggestions would be greatly appreciated. Sorry so long but only vehicle and need help please.