Toyota PCV Valve 12204-31120 This is how I replaced the PCV valve on my 2013 Toyota Avalon 3.5l 2GR-FE Engine. First you open the hood and pull off the engine cover... If you look at the yellow arrow in this next picture, you can see the PCV valve location.... Disconnect the hose and use a 19mm wrench to loosen the old PCV valve and install the new one. Don't forget to reconnect the hose and re install the engine cover...
