TexasDart
Well-Known Member
Trying to figure out why and how to stop the PCV valve from screaming. When it's cold it makes a high pitch noise. When it warms up it doesn't scream anymore. I figured it was the old mechanical PCV valve, so I went and bought a new plastic style...found a grommet..seal good. STILL SCREAMS... What would cause this. I can pull the vacuum line and plug up the hose and scream goes away.
Any suggestions would be greatly appreciated.
Any suggestions would be greatly appreciated.