POSITIVE CRANKCASE VENTILATION (PCV) VALVE CONSTRUCTION/OPERATION[ZJ, ZY, Z6]

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•  Consists of a spring and valves.
•  The PCV valve ensures the passage of blowby gas by opening the valve according to the intake manifold vacuum, and adjusts the amount of gas by spring force.
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1
PCV valve
2
Spring
3
Internal valve
4
To intake manifold
5
From oil separator