nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Locations
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Positive Crankcase Ventilation Valve: Testing and Inspection

PCV (Positive Crankcase Ventilation) Valve

With engine running at idle, remove PCV valve ventilation hose from PCV valve; if the valve is working properly, a hissing noise will be heard as air
passes through it and a strong vacuum should be felt immediately when a finger is placed over valve inlet.

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Locations