PCV System - The Most Critical Part Is The flow Control Valve
PCV System – The Most Critical Part Is The flow Control Valve

So, The PCV system was developed to remove harmful vapors from the engine. And, The PCV system does this by using manifold vacuum to draw vapors from the crankcase into the intake manifold.  Vapor is then carried with the fuel/air mixture into the combustion chambers where it is burned.

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Finally, Bad PCV valves can cause engine oil contamination, sludge build-up, oil leaks, high fuel consumption, and other engine-damaging problems, depending on the type of failure.

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