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timing chain whine

  1. 2010 2.2L, Multiple DTCs

    Problems and Service
    Good Afternoon! New here, trying to get some input so I can decide how to proceed. Bear with me, I tend to over-inform in an effort not to leave too much out. Background: I have a 2010 Cobalt 2.2l automatic, I think it's the LT but I can never remember. History: May 2016 - transmission fluid...
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