jldeising@citcom.n

I need to clean the oxygen sensor hole threads up on a 85 2.8 mpfi. I believe a 3/4-16 tap will work but I'm not sure. Any ideas?

Thanks

CamarosRsweet94

Take a shot, sounds like all you can do is mess it up worse right?

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1994 3.4L Chevrolet Camaro - No more

2006 Hyundai Sonata

jldeising@citcom.n

Someone said it's a18mm hole, the same size as a large spark plug and a spark plug thread chasing tool will work.

Thanks

hardparts

it is metric thread, the same as a plug in most cases.

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