the blowby is coming from the oil stick and the valve pan covers, i'll check the wires and see what that does....thank you guys for the help....ill get back to u

all diesels have blow by. just as long as you don't pull the cap and say WOW!

Im meant to say Injector Pressure Regulator. It regulates the injectors pressure and if its bad it runs like crap it should be by the fuel bowl on top of the engine.

ok that makes more sense. i thought i was just stupid for a minute. it's actually on the bottom of the HPOP towards the drivers side.