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o2 sensor

  1. General Discussion
    So we bought the 2009 traverse LTZ AWD over the summer as a gift to my mom because her car had over 200,000 miles on it and first gear started to slip, plus you could see the wear and tear in the interior. We had the car for a long time. So when we got the traverse with the Bucket seats in the...
  2. General Discussion
    Hello everyone. I'm new to the forums and I recently bought a 2015 traverse ls. The issue I'm having is with the bank 1 sensor 1 o2 sensor and the bank 1 sensor 2 o2 sensor. I mainly want to know if they are upstream or downstream so I can order the right replacements. As far as the location...
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