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PCV valve tubing connects the PCV valve to the PCV system at the valve nipple, preventing vaporized oil from leaking and entering the atmosphere or building up on the engine or underside of the hood. Other parts of the PCV system include the PCV screen, filter, and grommet.

What is the PCV Valve and breather hose and where is it located? The Positive Crankcase Ventilation (PCV) valve is an emissions part that clears gasses from the crankcase. The crankcase houses the crankshaft and the oil that keeps the crankshaft and pistons lubricated.

Sep 22, 2016 · The Positive Crankcase Ventilation (PCV) valve hose is a hose running from the valve cover on the engine to either the intake air box or the intake manifold. The PCV valve is activated when crankcase pressure rises in the engine when running.

MOTOKU PCV Hose and PCV Valve Kit for Nissan Altima 2007-2013 Murano 2012 Positive Crank Ventilation Tube Pipe

Proper crankcase ventilation is key to smooth performance and engine longevity. Made from quality materials to resist cracking and brittleness, this PCV hose replaces a worn or leaking original equipment hose.

Provide an airtight seal between PCV hoses, and prevent vacuum leaks, with Dorman's resilient PCV Valve Tubes. The tubes are constructed from high quality, crack-resistant materials for durability against brittleness and fluctuating under hood temperatures. They are excellent for the repair of emission and vacuum systems on cars, trucks and ...

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