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Old 01-29-2012, 04:07 PM   #8
OKGMC4
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Join Date: Oct 2009
Location: Broken Arrow, OK
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Re: 5.3 multiple misfire, any advice?

I got two more plugs and they are firing fine now. I've seen other brands bad out of the box but this is an NGK first for me. Idles smooth now. I'm sure a new regulator that doesn't dump gas down the intake helps! Thanks for all the help...on to the next problem...
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