2002 Subaru Forester engine oil leak into spark plug hole

2002 SUBARU FORESTER
120,000 MILES • 4 CYL • 4WD • AUTOMATIC
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CMPCHANG
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engine oil leak into spark plug hole. And some oil leak in the PVC valve area. Need to add some oil after drive ~2000 mile. What is the root cause? thanks,
Ray
Oct 30, 2009 at 11:51 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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