Squealing noise from engine!! Need Help!!

**Scottydoggs** · 12-27-2015

under the pvc valve may be blocked up. if you shake the old pcv valve, does it rattle?

if one end is blocked off, id think the hole it lives in is also blocked up.

**BrokenGrandPrix** · 12-27-2015

Yes the old valve does rattle, just like the new one i guess. The old one is covered in oil though. I don't see any buildup in the hole though.

**BrokenGrandPrix** · 12-27-2015

Some YouTube videos are saying that there should be n 0-ring on the PCV valve itself but the one in the car didn't have one, and neither did the new one.

**SubwayGuy** · 12-27-2015

Originally Posted by BrokenGrandPrix

Some YouTube videos are saying that there should be n 0-ring on the PCV valve itself but the one in the car didn't have one, and neither did the new one.

The new one I bought did not have one either, but luckily my old one still had one and it was in good shape so I re-used it. So if you car is stock, yes, it should have one.