Ok so yesterday morning I went outside and started my truck. It cracked up first try and it was 23 degrees outside. I went inside top brush my teeth came back out and the truck had shut off and now it will not start. Glow plugs are under a year old, there is a monster glow plug relay that's not even two months old. I changed the cps today and the batteries have a full charge. The oil was low because of the good ole 7.3 leak so I filled it back up and still nothing. I changed the fuel filter Sunday but the fuel bowl is full and I am getting white smoke or the exhaust. I left the trucks block heater plugged in all day just to rule that out and still nothing. I tried starting it with the icp unplugged and nothing. I am really at a loss I am wondering about the ipr but I am not sure. Any dissertations would be great.