Acura 11855-P30-000 Pcv Tube A

The Positive Crankcase Ventilation (PCV) system directs blow by gases from the crankcase through the PCV valve and hose back into the intake manifold so they can be burned in the engine. The system consists of a hose leading from the valve cover to the intake manifold and a fresh air hose between the air cleaner assembly and the valve cover. The PCV valve and hose is located in the intake manifold below the fuel injector rail at the rear of the engine, or in the valve cover, depending on model. With the engine idling at normal operating temperature, pull the PCV valve (with hose attached) from the manifold or hose. Place your finger over the valve opening or hose. If there is no vacuum, check for a plugged hose, manifold port, or the valve itself. Replace any plugged or deteriorated hoses. Turn off the engine and shake the PCV valve, listening for a rattle. If the valve doesn't rattle, replace it with a new one. To replace the valve, pull it out of the end of the hose, noting its installed position and direction. When purchasing a replacement PCV valve, make sure it's for your particular vehicle, model vehicle and engine size. Compare the old valve with the new one to make sure they are the same. Push the valve into the end of the hose until it's seated. Inspect all the rubber hoses and grommets for damage and hardening. Replace them, if necessary. Press the PCV valve and hose securely into position.