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Randy
Randy, Auto Specialist
Category: Car
Satisfied Customers: 9256
Experience:  25 Years Experience Automotive Technology.
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Oil leaking Into # *****(or#4)sparkplug well, then starts to blowing

Customer Question

oil leaking Into # *****(or#4)sparkplug well, then starts to blowing down back of engine on to the block and exhaust pipes. Also the leaking oil blows over top of engine. OIL in sparkplug well is deep. Where is that oil coming from?
Cracked block? cracked head? Blown engine gasket?
Submitted: 1 year ago.
Category: Car
Expert:  Randy replied 1 year ago.
That sounds like it is coming from the valve cover, it could be caused by a bad valve cover gasket or a bad pcv valve.
Customer: replied 1 year ago.
ok, thank you, ***** ***** check those areas you listed. Ken.
Expert:  Randy replied 1 year ago.
sounds good, hopefully that will be the cause. Let me know if you need anything.
Customer: replied 1 year ago.
car has 90,000 on it
Expert:  Randy replied 1 year ago.
The most common problem that afflicts the PCV systems is a plugged up PCV valve or hose. Accumulation of fuel and oil varnish deposits and/or sludge inside the valve can restrict or even block the flow of vapors through the valve. A restricted or plugged PCV valve cannot pull moisture and blow-by vapors out of the crankcase. The valve can cause engine-damaging sludge to form and the backup of pressure that may force oil to leak past gaskets and seals.