Where is the PCV valve installed?

[LaylaLynn]

PCV valve installation location: A pipe from the engine valve cover connects to the engine intake pipe. The arrangement of the PCV hose varies depending on the engine model. Below is relevant information about the PCV valve: 1. Function of the PCV valve: At the end of the engine combustion process, some unburned mixture leaks into the crankcase under high pressure from the piston rings. These blow-by gases can escape into the atmosphere, causing pollution. If these gases are not removed, they can dilute the engine oil in the crankcase, leading to oil degradation and premature wear of engine components. Therefore, a PCV valve is installed on the valve cover to allow these exhaust gases to re-enter the engine through the intake manifold for re-combustion. 2. PCV valve inspection method: After reinstalling the PCV valve, remove the crankcase intake pipe from the air filter and lightly cover the pipe opening with a thin piece of paper. As the pressure in the crankcase decreases, the paper should be noticeably sucked toward the pipe opening. Additionally, after stopping the engine, remove the PCV valve and shake it by hand to check. If a "click" sound is heard, it indicates that the PCV valve is flexible and usable.