Isx Crankcase filter sensor high pressure

[So Cal ProStar]

(07-21-2016 )Nilao Wrote:  Can be multiple things. Off top of my head head gasket, cracked head, egr cooler leaking; how's the coolant? Is it running down the bottle? Mine has a slight over pressure issue but I lose half a gallon a week from the cap. None on the coolant so at this point I'm running it to make $ to replace the head if I have to. But to say it's in need of a rebuild without taking the proper steps is asinine.

PS. I would bet money your dpf is cracked at this point and will need to be replaced or go ahead and remove the mandate. I believe there is an awesome shop in Las Vegas, Nevada area that can help with that.

When the truck was delivered, the coolant at the bottle was about half way between hot and cold mark. After the filter, the coolant level is above the hot mark, almost all the way to the cap...