The PCV valve located under intake plenum, just replaced mine 2 days ago, same motor.
Valve was $5.99 @ Advance Auto. Got to remove intake, upper & lower pieces, might need new gaskets if bad but they are reusable gaskets. Had a difficult time getting the hose connection off the tube near #6 COP & the drivers side ignition module for the 3 COPs. Be careful with the small hose that goes from the intake plenum to the top radiator hose manifold, that small plastic tube will break easily! The top radiator hose is $301 list @ dealers, $231 minimum. I C Max sells it for $118. Got a new 1 ordered for mine $106, with clamps @ the 2 places the large hoses connect left & right. The top radiator hose is P/N YM4Z8B502AA, it comes with a new thermostat housing & thermostate from dealer. The 1 I ordered just has the top left & right hoses with the center 5 port plastic manifold, but has hose clamps for both hoses @ the manifold. I think I will spray throttle body cleaner down the tube were the rubber large connector by #6 COP connects to the pipe going under the intake plenum the night B 4 I change oil from now on to keep the PCV valve cleaned out. Might save problems later. Just a thought! Be careful of the 2 vacumn lines attached to the left rear of the intake & the 2 elec connectors back there. There is also another large vacumn line back there connected to the middle of the plenum. Just my observations. Food 4 thought! U can check for a bad PCV valve by removing the oil fill cap, engine running, put your hand over opening then remove hand. You should hear a change in engine. If oil spits out of fill hole, PCV valve probably clogged causes excess oil pressure.