What does the PVC valve in a car mean?

[JosiahLynn]

The PVC valve in a car is a component of the positive crankcase ventilation (PCV) system on the vehicle's engine, consisting of a valve body, valve, valve cover, and spring. Below are the main functions of the PVC valve in a car: Acts as a conduit: It directs gases from the crankcase into the intake manifold through the PCV valve, with a small amount of air passing through the air filter and then directly into the intake manifold via the PCV valve. Prevents various issues: It helps avoid throttle icing, incomplete combustion, and worsening emissions, while preventing blow-by gases from entering the atmosphere and keeping the engine oil from deteriorating.