Component Inspection

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.

Fig 1: Checking Positive Crankcase Ventilation Valve
Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: INSPECTION END

NO: Replace PCV valve.