Positive Crankcase Ventilation is a system that was developed to remove harmful vapors from the engine and to prevent those vapors from being expelled into the atmosphere. The PCV system does this by using manifold vacuum to draw vapors from the crankcase into the intake manifold.
Besides, how does a PCV breather work?
When the vehicle is moving, airflow across the open end of the tube creates suction (a "draft") that pulls gases out of the crankcase. To prevent a vacuum being created, the blow-by gases are replaced by fresh air using a device called a breather. The breather is often located in the oil cap.
Furthermore, can you replace a PCV valve with a breather?
You can replace the breather on the passenger side. That's not a big deal. That's all that hose to the air cleaner does is draw in air. You do want to keep the PCV valve.
Why do a PCV delete?
Under situations where the vacuum in the intake manifold drops to zero or turns to a positive pressure (under “boost”), the one-way PCV valve closes and the engine becomes dependent on another means to relieve crankcase pressure. While this system can help reduce the positive crankcase pressure, it does have drawbacks.
What happens if PCV valve is bad?
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. Even though some car manufacturers suggest replacing the valve at regular intervals, car owners still forget to replace it.