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Old 03-11-2007, 07:32 AM   #2
GMMerlin
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Re: New Chevy 4.3L Has Misfire --Please Help--

IMHO your mechanic should have investigated what was causing the misfire before returning the truck to you.
It sounds like an engine mechanical issue (I would start with a compession test first)
You shouldn't have to tell your mechanic anything..if he was any good, he could figure it out on his own.
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