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positive crankcase ventilation
noun
- 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
Example Sentences
National Highway Traffic Safety Administration say there could be an electrical short in the positive crankcase ventilation valve heater.
The aluminum positive crankcase ventilation valves can fall apart.
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.
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.
Government documents Friday show that a heater for the positive crankcase ventilation valve can overheat and cause the valve to melt.
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