PCV Valve Location Video ???

I'm afraid that's it. You can take the "it took forever and it's frustrating" comments to heart. It's thread doped, so it won't spin free and you can only turn it a fraction of a turn at a time due to super tight confines. I did mine using a cut-down 22mm box wrench as per Den49's excellent tutorial, but I'm sure the crow's foot will work fine, too. To do it again, I'd combine it with an intake manifold EGR port cleaning. It would be very easy done from above with the I.M. pulled.

PCV Valve Replacement with Pictures | PriusChat