start the car and pull the PCV valve out of the valve cover and put your finger over the end of it and see if you feel it sucking.
The valve cover on a typical engine is a non wearing part. If it were damaged it could be bent, warped or cracked and could be the source of an engine oil leak.
warped valve cover. bad gasket. cracked valve cover cracked block
PVC valve is bad
no
the valve cover gasket is bad, or the valve cover is loose
Check the compression of the cylinders you will have a low reading in the one with a bad valve
either you have a bad valve cover gasket, a bad oil cap gasket, a crack in the valve cover, or the seals for the spark plugs have gone bad.
how do you know when valve lifters for 94 mercury villager 3.0 engine r bad
A PVC valve is typically bad in a car if a car has an oil leak. Other signs of a bad valve include a collapsed hose and a sludge-like buildup.
Bad engine seal? Bad oil filter? Leaking valve cover gasket?
It may be the Positive Crankcase Ventilation (PCV) valve. This valve is usually installed into the valve cover and has a hose connected to it.