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Elite Member
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Join Date: Feb 2015
Location: San Jose, California
Age: 58
Posts: 5,278
Real Name: Tim
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Elite Member
Join Date: Feb 2015
Location: San Jose, California
Age: 58
Posts: 5,278
Real Name: Tim
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Oil getting past the spark plug tube grommet could deposit oil into the spark plug tube but it wouldn't foul the spark plug. The spark plug is threaded into the head with a washer and I doubt any appreciable amount of oil could seep in. Now, if the leak was really bad and filled the spark plug tube so much that it affected either the coil pack or spark plug wire, maybe that's a possibility.
It's possible excess crankcase pressure caused the grommet to blow out worse because your PCV valve isn't working properly.
Sounds like it time to stop procrastinating and get your valve cover gaskets and associated parts replaced.
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Last edited by mtbtim; 03-27-2020 at 08:20 PM.
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