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metal flakes

  1. 2016 CTS rear differential noise metal flakes in oil

    2014+ Cadillac CTS General Discussion
    Took my car to the dealership and they said there was excessive metal on fill plug for rear differential and noise was easily heard at 2 mph. They recommend tear down at cost of $1440.00. That’s to find out what’s wrong. 76,000 miles. Covered under extended warranty.