Crankcase Emission Control System: Inspection

1. Disconnect the ventilation hose from the positive crankcase ventilation (PCV) valve. Remove the PCV valve from the rocker cover and reconnect it to the ventilation hose.
2. Run the engine at idle and put a finger on the open end of the PCV valve and make sure that intake manifold vacuum can be felt.

[2.4 DOHC] 

Fig 1: Checking Intake Manifold Vacuum - 2.4 DOHC

Courtesy of HYUNDAI MOTOR CO.

[3.3 V6] 

Fig 2: Checking Intake Manifold Vacuum - 3.3 V6

Courtesy of HYUNDAI MOTOR CO.