T100 Pickup 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1993)
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Positive Crankcase Ventilation Valve: Description and Operation
PURPOSE
The Positive Crankcase Ventilation (PCV) Valve is used to meter the amount of blow-by vapors that flow from the crankcase to the intake
manifold.
OPERATION
The PCV Valve contains a spring loaded check valve that allows the amount of blow-by vapors reintroduced into the intake manifold to be
controlled. The valve passage size is dependent upon intake manifold vacuum and crankcase pressure.
