PCV Valve
Remove PCV valve. Plunger should rattle freely when valve is shaken. Ensure air flows freely when blown through cylinder head side of PCV valve. Ensure air flows with difficulty when blown through intake manifold side of PCV valve.
Remove PCV valve. Plunger should rattle freely when valve is shaken. Ensure air flows freely when blown through cylinder head side of PCV valve. Ensure air flows with difficulty when blown through intake manifold side of PCV valve.