i have a greddy type H bov and it was releasing pressure this morning, but jus driving around i noticed i didnt hear anything while i was shifting, i doubled check my vacuum lines and everything is good. my vacuum is good and im holding boost...not sure why it's not releasing pressure like it should. any suggestions?

 

maybe take it off , open it up and clean the inside..

dirt gets in there and stops the piston from moving freely..

I have to clean my BOV at every oil change.

 

alright i'll do that, thanks