POSITIVE CRANKCASE VENTILATION (PCV) VALVE [SKYACTIV-G 1.3, SKYACTIV-G 1.5]SM2759911
POSITIVE CRANKCASE VENTILATION (PCV) VALVE [SKYACTIV-G 1.3, SKYACTIV-G 1.5]

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Purpose, Function

• The PCV valve prevents release of blow-by gas (unburnt gas) into the atmosphere.
• The PCV valve is open/closed by the intake manifold vacuum.

Construction

• The PCV valve is located on the oil separator.
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• The PCV valve consists of a spring and valve.
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Operation

• When the valve is pulled by the intake manifold vacuum, blow-by gas flows to the intake manifold.
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• The blow-by gas flow amount is determined by the balance of the intake manifold vacuum and the spring force.