miss fire error code for cylinder 1
February 3rd, 2014, 4:54 PM
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miss fire error code for cylinder 1
Hi, my blazer 4.3l over heated last summer, water pump failed. New pump, intake manifold gasket failed, replaced, still misfire. Replaced all spark plugs and wires, distributor cap. Still misfire, noticed the exhaust "puffs" (draws a vacuum back into task pipe), does this mean a bad valve?
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