To check the PCV, do a glove test. If the glove sucks down it is a pass. If it sticks up like a rooster's crown its a fail. Make sure you tie down the glove with a zip tie or rubber bands to insure the glove does not get sucked into the engine. [youtube]https://www.youtube.com/watch?v=2yEcJUi3sxE[/y...