wtf blew a spark plug

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11-09-2014, 12:24 AM

Fordf150#1

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wtf blew a spark plug

I'm a proud owner of a 99 f150 5.4 and had the misfortune of losing a spark plug on the freeway ......why did it happen?

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11-09-2014, 05:23 PM

sodacraft

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I'm guessing it was improperly torqued down or the threads have gone and the compression literally blew it away. Either way it's s cheap fix. At worst you'll need a helicoil. Check all the others too.

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