Airflow Inspection

WARNING: This page is about a different variant/trim than selected.

Remove the air cleaner cover and air hose as a single unit. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Disconnect the PCV hose from the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
Verify that there is no airflow when pressure is applied to the end of the disconnected PCV hose.
- If there is airflow, replace the PCV valve and the oil separator as a single unit. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION .)
Verify that there is airflow when vacuum is applied to the end of the disconnected PCV hose.
- If there is no airflow, replace the PCV valve and the oil separator as a single unit. (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION .)