Positive Crankcase Ventilation: Description and Operation
POSITIVE CRANKCASE VENTILATION (PCV) SYSTEMPositive Crankcase Ventilation (PCV) System Flow Diagram:
PCV System Outline
- The PCV system discharges blow-by gas from the crankcase to the intake manifold.
PCV Valve Description
- The PCV valve regulates the amount of ventilating air and blow-by gas to the intake manifold and prevents backfire from traveling into the crankcase