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Where is PCV valve on 2005 Chevy z71?

The PCV valve on a 2005 Chevy Z71 is located on the passenger side valve cover. It is a small, black valve with a hose connected to it. To remove the PCV valve, simply pull it out of the valve cover. Be careful not to lose the gasket that is located on the valve. To install the new PCV valve, simply push it into the valve cover until it is seated.