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  1. Problems and Service
    Hi all, I'm looking for advice on a continuous cyl 3 misfire issue. I bought a used 2010 Chevy Cobalt LS (sedan, automatic) with about 92700 miles on it from a trusted local mechanic at auction. It drove fantastic for the first week (about 125 miles), and then began to misfire which quickly...
  2. Problems and Service
    My 2008 Chevy Cobalt has a CEL - code P0303. I've changed spark plugs and coil packs, but that hasn't fixed it. The car runs okay for the most part unless I am sitting at a stop light or idling somewhere, then it idles roughly and the CEL light starts flashing. I'm not a mechanic, but am...
  3. Problems and Service
    My 2008 Cobalt has a Cylinder 3 misfire code, P0303. I've changed spark plugs and coil packs, which didn't help. I have Torque and ran some testing, but I have no idea what the results mean. Can anyone help, please? Mode $06 report generated by Torque for Android...
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