All models use a closed ventilation system with a sealed breather cap connected to the air cleaner by a rubber hose. The PCV valve is usually mounted in the valve cover and connected to the intake manifold by a rubber hose. Its task is to regulate the amount of crankcase (blow-by) gases which are recycled.
REMOVAL & INSTALLATION
See Figures 1, 2 and 3
Since the PCV valve works under severe load, it is very important that it be replaced at the interval specified in the maintenance chart. Replacement involves removing the valve from the grommet in the rocker arm cover, disconnecting the hose(s) and installing a new valve. Do not attempt to clean a used valve.