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1978 Coupe Deville
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42 Posts
Discussion Starter #1
Guys,
I have some moisture around one of the spark plugs (in the spark plug well). I can't determine what liquid it is, looks like clean oil. Car has not been driven for 2 weeks and it is still there so assuem its oil. Could this be a big problem? Is it possible for something to come out of the cyclinder head through the spark plug thread or could this be moisture, possibly oil leaking from a valve cover and accumulating in the spark plug well?
 

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Sedan de Ville, CTS
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4,764 Posts
If it was coming out of cylinder, you would hear all kinds of hi pressure noise. It is coming from valve cover gasket. I have seen that on some of my cars in past, but I do not remember which ones.

Real mechanic might not agree with me.
 
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