That is the PCV circuit. It starts at the crankase filter then runs to the PCV valve, the round thing, and then into intake.
You probably have a PCV valve that is stuck open. It is supposed to move so it does not suck oil into the intake.
You can either clean it with brake cleaner until it moves freely, you can tell by shaking it, or you can buy a new one.
Thursday, March 29th, 2012 AT 6:56 AM