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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.

2 votes

PCV Valve hose question

The part you use should withstand high temperatures and must not collapse under vacuum. I think if you use garden hose, it will just collapse and also melt down. The only hands on experience I have i …
Evren Yurtesen's user avatar