How Serious Is Valve Cover Gasket Leak. Is a valve cover gasket leak serious? So, the valve cover gasket is very delicate and prone to oil leaks.
When this occurs, the gasket can lose its integrity and leak, potentially causing cosmetic issues like leaking oil, or drivability problems and reduced engine performance. Valve cover gasket leak replacement cost posted on november 10, 2021 november 10, 2021 by admin an aluminum or plastic valve cover is bolted to each cylinder head on your car’s engine. Due to this excessive morphing of the plastic, the valve covers in your audi can become stiff and develop cracks, causing leaks.