Question about 1991 Toyota Corolla

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Sparkplug Black Carbon Fouled

Hello, my i ask if there's any possible solution on this problem.,my GL 1.6 corolla... I've tried to change spark plug but still have Carbon Fouled on it.

Thanks I appreciate

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  • onlypinoy Jun 03, 2009


    Thanks for this tips, It's much help appreciate



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Sounds like valve guide seals are leaking allowing oil to enter the combustion chamber with is fouling the plugs with carbon build up.

Posted on Jun 02, 2009

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