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cause or suspected reason for oil inside sparkplug wire receptacle through cover on 1990 Geo Prizm

pulled the sparkplug wires and the number one wire was literally drowning in oil(one closest to oil fill cap) the other three were dry and seemed fine dont know if this was from an internal problem or spill from the outside inspection i would say the oil is coming from an internal source to my knowledge no oil was spilled or other from the top

Asked by for the 1990 Geo Prizm
You really need to do the valve cover gasket with the spark plug o-rings as soon as possible, or you will be replacing the cat do to engine misfire.
what is the cat be more specific
CATALYTIC CONVERTER mucho denaro
1 more answer
REPLACING THE VALVE COVER GASKET SHOULD FIX THE PROBLEM. WE SEE ALOT OF THIS IN HIS TYPE OF SYSTEM
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