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    454 Vortec P0300 Multiple cylinder misfire code. Troubleshooting and solution.

    I wanted to let you guys know. My brother has a 2000 Chevy 1 Ton with a 454 and about 145,000 miles on it. He uses the truck to pull a small travel trailer. So if the truck doesn't run right, he can't go camping. He's been fighting the P0300 code and misfires for several years. He's taken...
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