Del Sol L4-1.5L SOHC (1993)
Positive Crankcase Ventilation Valve: Description and Operation
PURPOSE
The Positive Crankcase Ventilation (PCV) valve is designed to meter blow-by gas into the intake manifold.
OPERATION
The Positive Crankcase Ventilation (PCV) valve contains a spring loaded plunger which is "seated" when the engine is Off. When the engine is
started, manifold vacuum lifts the plunger from it's seat and allows blow-by gasses to flow from the crankcase and into the intake air flow.