infiniti Workshop Repair Guides

Infiniti Workshop Service and Repair Manuals

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

Component Inspection

PCV (POSITIVE CRANKCASE VENTILATION) 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.

Sensors and Switches - Emission Control Systems > < PCV Valve Hose|Testing and Inspection