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Results tagged with pcv-valve
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user 22038
PCV is and acronym for Positive Crankcase Ventilation. It is part of a system that helps control air pollution by burning fumes that collect in the engine crankcase instead of venting them to the atmosphere.
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Does checking for air coming from the oil fill hole tell you that the engine is bad?
As you are aware, since you tagged your question with it, most (if not all) modern engines have positive crankcase ventilation, which under normal conditions, maintains a lower pressure inside the cra …
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