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Q: How do I remove a nonfiler spark plug adaptor that's stuck in valve on a Altima on 2003 Nissan Altima

# 4 spark plug covered in oil car was miss firing so we got a nonfiler adaptor to help and it's now stuck in the valve the spark plug screwed out but can't get a socket in there to unscrew the adaptor what do I need to get it out
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Seems things have changed a bit since this am, maybe i just cant read.

It screws out, use socket, extension and a ratchet! Oil prob. leaking in from spark plug tube, adapter not helping. Let a mechanic take a look.
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