What would make my degas bottle build pressure? There is no fuel or oil in coolant, and nothing in the oil. I was thinking maybe thermostat even tho i put a new one in about 3 months ago. Also i have some kind of oil leak in the valley any help with this? Thanks in advance.

 

How much pressure?

What boost pressures are you running?

Oil leak could be many things in the valley, turbo, HPOP, Rail plugs...

 

the upper radiator hose is hard as a rock some times. and it will also puke. The boost pressure doesent get over 27 i baby this truck

 

First guess would be injector cups, but you say you have no fuel in the coolant...

Have you replaced the cap ever?

 

yes i have replaced the cap not to long ago maybe 3 months ago.