To change the Positive Crankcase Ventilation (PCV) Valve, initially, remove the engine sight shield if necessary. Then disconnect PCV tube from the rocker arm cover and disconnect PCV valve from the PCV tube . For installation, cut an old PCV valve off the PCV tube, remove the bottom retaining clip, attach the new PCV valve to the PCV tube, and then reconnect the PCV tube to the rocker arm cover. Lastly, reinstall the engine sight shield if it was removed.