Positive Crankcase Ventilation (PCV) Valve Cleaning and Inspection for Pontiac G6 2009
Caution: Do not attempt to remove the valve from the valve rocker arm cover, as damage may occur to the rocker arm valve cover. The positive crankcase ventilation (PCV) valve is a fixed orifice
system.
Flush the carbon from the PCV valve orifices (1) using solvent.