Leaky oil seal on valve on that particular cylinder. While you're at it,
have 'em replace all of them.
If you have half decent compression, its not the rings or a broke piston or
My little sister has the same model car and I experienced the same
problem when I pulled one of her spark plug wires for a tune up. It
turned out to be a simple valve cover gasket which is very common in a
vehicle with that many years on it.
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