Nissan Sentra manuals

Nissan Sentra Service Manual: Positive crankcase ventilation

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. Refer to EC-15, "ENGINE CONTROL SYSTEM : Component Parts Location".

Removal and installation


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Removal and installation
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Other materials:

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Precaution
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Diagnosis and repair work flow
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