how do i fix 2010 chevrolet cobalt that does a misfire number 3 cylinder on 2010 Chevrolet Cobalt

we have put new spark plug in and a new coil

by in Sandborn, IN on July 03, 2013
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1 answer
ANSWER by , July 04, 2013
Check compression, fuel injector pulse and for a vacuum leak @ # 3. If not equipped, see a mechanic.