How do you change the PCV on a 2002 Mazda tribute?

To change the PCV (Positive Crankcase Ventilation) valve on a 2002 Mazda Tribute, first, locate the valve on the engine's valve cover. Disconnect the hose connected to the PCV valve and then remove the valve itself by twisting it out of its socket. Install the new PCV valve by inserting it into the socket and reconnecting the hose. Finally, ensure everything is secure and check for any leaks.