I didnt chevk the pcv yet but i replaced it about 6000 miles ago when i did a full on tune up, all acdelco stuff. When i was playign with it to look for the noise under the hood, I checked the linkage, Nothing. I think it could be those little porclin dounts to. Im taking it in for inspection so id like to do it so they dont charge me an arm and a leg for it. And BLazes your right, I do here it when im under acceleration. Its not very loud and gets fast with the rise of the rpms. When I change my trany last summer, We took them off and never changed them
(y-pipe to manifold gasket)