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1998 grand marquis gs

Mercury Grand MarquisI think I have a blown spark plug, I heard a pop then my engine got loud, the noise and a strong air flow is blowing up from over the spark plugs area on the passenger side. Do I have a blown spark plug?


RESPONSE

It sure sounds like you do have a blown plug. Simply replacing the spark plug should take care of the issue if just the porcelain part came out. Otherwise there may be damage to the threads if the entire plug blew out.

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