Pressure from Oil Fill Hole in Valve COVER

[achillies]

Yesterday when I lifted the hood w/ the engine running I heard a squeeking sound. I also saw that an oil reside was coming from the valve cover bolt holes. I twisted the oil fill cap off and a very large amount of pressure escaped. There is a continuous stream of pressure venting from the oil fill hole. Nothing has been changed in a while the car seems to run ok. Any thoughts? Thanks in advance

[stumble_t]

check the valve cover breather isn't obstructed. also crankcase ventilation to the intake manny.

[achillies]

Hi....no obstruction. When I pull the oil cap the engine stalls...it acts like a giant vacumm leak. I guess it is normal that way. Just seemed like a lot of pressure. Thanks

[stumble_t]

I'm confused Is there pressure or vacuum?
vacuum there is normal...the car should stall or at least run real crappy without the oil cap.
Was the squeaking sound a belt perhaps? you can check by squirting one belt at a time with a spray bottle of water and listening if it disappears. narrow it down to witch belt it is.
As far as the oil from the V.cover replace the valve cover gasket and rocker plugs and torque down the bolts to spec. You might as well give it a valve adjust and new plugs while ur at it too.