Positive Crankcase Ventilation (PCV) System
Positive Crankcase Ventilation (PCV) SystemOverview
The PCV system cycles crankcase gases back through the intake air system into the engine where they are burned. The PCV valve regulates the amount of ventilated air and blow-by gases to the intake manifold.
CAUTION: Do not remove the PCV system from the engine. Removal of the PCV system will adversely affect the fuel economy and engine ventilation and result in shorter engine life.
Quarter-Turn Camlock Design PCV
PCV systems that comply with OBD PCV monitoring requirements use a quarter-turn cam-lock thread design at one end to prevent accidental disconnection from the valve cover. For more information about the PCV monitor, see POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM MONITOR.