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in between the intake manifold, bottom half.
at least on the 2006 you can tee of the the line from the valve body that comes back to the side of the intake,
Putting a PCV valve on a Toyota Tacoma is pretty easy. Just pull on the old PCV valve straight out of the rubber grommet once itÕs out twist the hose off the other end and replace it with a new one.
http://www.4x4wire.com/toyota/maintenance/tacoma_4runner_30k/maintenancep5.html Link explains where PCV valve is, how to test it !!!!
Follow the brakes lines reward from the master cylinder and you will find it.
next to the evap can on the right side of the car behind the front bumper you will also see the vacuum switch in line with it. as the flow moves it will be the purge valve then the vacuum switch.
the valve is on lower side of engine near fire wall.
back of the valve cover-passenger side i believe-it has a vacuum line running to the intake.
Swirl Control Valve Control Vacuum Switch
There is no such thing as a PCV valve. The PVC valve is attached to your valve cover. I will be waiting for your post "where is the valve cover on a 2005 Tacoma?" and "where is the cylinder head on a 2005 Tacoma?" and "where is the hood release mechanism on a 2005 Tacoma?" and "where can I buy auto parts for a 2005 Tacoma?" and the inevitable "I removed something on the engine of my 2005 Tacoma and now it won't start?"
Could be a check valve located in a vacuum line.
The egr valve is located at the back of the cylinder head next to the firewall. There is a round plastic solenoid beside it also. ? DD.