Hyundai Elantra: Emission Control System > Crankcase Emission Control System > Positive Crankcase 
Ventilation (PCV) Valve > Description and Operation - Emission Control System - Hyundai Elantra MD 2010-2015 Service manualHyundai Elantra: Emission Control System > Crankcase Emission Control System > Positive Crankcase Ventilation (PCV) Valve > Description and Operation

Operation Principle