[farfrumwurkin]

I think that this thing is messed up. When we clamp down on the little hose that comes out of it the hissing noise stops.
Anyone know anything about this? What could have caused this?
I have a 2.0L MK4.

 

[Bob Roberts]

Re: PCV system heater element? hissing? (farfrumwurkin)

Vacuum leak.