i have a greddy type s style bov and it was working yesterday, but today i was boosting, there was no sound. There is air coming out but no sound. The vac line from the bov is tee'd off of the vac line from intake manifold to the wastegate.

 

anyone know whats wrong?

 

check all the vac lines, they probably have a pin hole in them.

 

checked the vacuum lines and theyre all fine.

 

anyone know what might be wrong? i checked all vacuums lines and t's.

 

You must be in boost mood to hear the pressure release from the BOV.