Hyundai Ioniq (AE): Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve. Description and operation

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Engine Electrical System / Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve. Description and operation

Operation Principle

    Inspection1. After disconnecting the vapor hose from the PCV valve, remove the PCV valve. 2. Reconnect the PCV valve to the vapor hose.3. Run the engine at idle, then put a finger over the open end of the PCV valve and make sure that intake manifold vacuum can be felt.

    Removal1. Disconnect the vapor hose (A).2. Remove the PCV valve (B).Inspection1.Insert a thin stick (A) into the PCV valve (B) from the threaded side to check that the plunger movement.

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