Positive Crankcase Ventilation: Description and Operation

PCV System:

PURPOSE
The Positive Crankcase Ventilation (PCV) System cycles crankcase gases back through the engine where they are burned. On some engine applications, the PCV system is connected to the evaporative emission system.

NOTE: Do not remove the PCV system from the engine. Removal of the PCV system will adversely affect fuel economy and engine ventilation resulting in shorter engine life.