Question about 1993 GMC Sierra

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I have back fireing at half idiol and then it dies takes hard at starting and has a hard time starting again and i have no idea what this could be

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Check your plug wires they may be grounding out. If you just did a spark plug change make sure the wires were put back in the correct order. Also it could be that your timing is off.

Posted on Sep 13, 2010

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