Ford Mustang Forum - View Single Post - spark plug fouling
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post #6 of (permalink) Old 03-11-2016
5.0 Coyote
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Originally Posted by MachV6 View Post
I havent been able to swap them all yet but I still have 4 on. But why does the plug keep carbon fouling in cylinder 2? I have an oem cop in that cylinder but it still fouls after a few miles.
Do a compression test on that # 2 cylinder and compare it to the other cylinders in your engine,that should give you a starting point.
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