Hi Scotty, I have a question about my 2013 impala. Lately, it's been making a clicking/rattling…

Hi Scotty, I have a question about my 2013 impala. Lately, it's been making a clicking/rattling sound whenever I accelerate uphill, and now it's been making the same noise a little more often even when I'm not going uphill. Any idea of what it could be ?

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