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Check your engine oil!!!!! It is probably about 12 quarts overfull on oil. Don't seat the dipstick ALL the way in, keep short-sticking it until you get an idea of how full it is. if it registers full on the dipstick, with the dipstick a couple inches out of the tube you know it was overfull. The HP fuel system is under the valve covers, and a leak will overfill the oil, and you'll start to suck in oil thru the intake. Disconnect the Lower CAC hose under the truck on the drivers side, and drain the oil from your CAC. Then you need to check for an internal fuel leak.
1 You'd have to pull both valve covers, and leave the fuel cooler connected, then run the truck and check for fuel leaking. It's easier if you add fluorescent dye to the secondary fuel filter bowl, and use a dye light.
2 Alternatively, you can drain the oil overnight, and leave the drain plug out. Then you turn the key in the on position and run the fuel pump, while checking to see if fuel comes out the the oil pan drain hole. You may need to spin the engine periodically, and could take a solid 15 minutes of pump run-time before you see a leak.
if it fails test 1, replace whatever is leaking ;p Fuel like is torqued to snug on both side, 100 INCH pounds, then an addition 60 degrees.
If it fails test 2, pull the cab/turbo and throw in a new injection pump, pump gasket/harness, and the small jumper harness