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no communication
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  1. Problems and Service
    hello community! I have a chevy cobalt 2.2l automatic. the car doesn't start and no crank, on the dashboard there is a check engine light and a low fuel message. No communication with the scanner either, I have done the test bypassing at the cranck relay and it turns on for 3 or 4 seconds and...
  2. Problems and Service
    This will be long, but please bear with me. My son's 2007 Cobalt LT 2.2 blew its head head gasket, got hot, junked engine. Found a complete donor car, 2006 Cobalt. I know that the engines are different but replaced the engine, all harness's and computers from donor car. OBD says no...
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