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Diagnosing The 2nd Gen GM HEI Ignition System Auto and Marine Using Common Tools

Posted by Mike H on March 9, 2022 at 2:23pm

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This is a demonstration on how to diagnose a no spark, weak spark, and no injector pulse concerns with this system commonly found on 87-95 GM trucks with 4.3...

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Diagnosing The 2nd Gen GM HEI Ignition System Auto and Marine Using Common Tools

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