Cube L4-1.8L (MR18DE) (2010)
Positive Crankcase Ventilation: Testing and Inspection
Component Inspection
POSITIVE CRANKCASE VENTILATION
Component Inspection
1.CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover. A properly working valve makes a hissing noise as air passes through it. A strong
vacuum should be felt immediately when a finger is placed over valve inlet.
Is the inspection result normal?
YES - INSPECTION END
NO - Replace PCV valve.