B4000 2WD V6-4.0L SOHC (2003)
PCV Valve
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Mounted in a vertical position.
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Regulates the amount of ventilating air and blow-by gas to the intake manifold and prevents backfire from traveling into the crankcase.
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The PCV valve is designed with a quarter-turn cam-lock thread at one end to prevent accidental disconnection from the valve cover.
