i changed out my pcv valve for one of the newer ones that just have the small hole in them, no check valve inside and after about 2 weeks this thing is whistling like crazy. it took me a while to figure out what it was, but if i pinch the line after the pcv it shuts right up. anyone else that has put one of these new ones on have this problem? i'm gonna put a catch can in and hopefully it'll quiet this thing down. i'm not sure if i should bitch to the dealer that i got it from (even though i only paid like 4 bucks for it) or just wait and see if it goes away with the can.