POSITIVE CRANKCASE VENTILATION Definition & Meaning

positive crankcase ventilation

noun

Automotive.

a means of reducing air pollution by directing the fumes from the crankcase of an engine into the intake manifold, so that they will be channeled into the cylinders and burned. : PCV

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Example Sentences

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National Highway Traffic Safety Administration say there could be an electrical short in the positive crankcase ventilation valve heater.

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The aluminum positive crankcase ventilation valves can fall apart.

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BMW says in documents filed with the government that moisture can get into the cars’ positive crankcase ventilation valve heater and cause plastic parts to degrade.

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In these vehicles, the heater designed to keep the positive crankcase ventilation from freezing has the potential to short-circuit, causing the parts inside its valve to melt.

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