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knocking

  1. 2011 outback 2.5 knocking

    Problems & Maintenance
    Help!! my 2011 outback with 156,000 miles has a knocking/pinging noise that comes and goes. It has been back for a while, I have been running premium gas in it for a while now. It has helped it go away some, though it still comes and goes. Some days it’s there, some days it’s not. I use Lucas...
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