Hey guys! Does anyone hear a pinging noise of their 2017 Colorado? Notice it as it reached 1200-2000 rpm? Took to dealer on 3 occasions, have no answers, wait there over 2 hours easily and dismiss the issue and don’t have concrete answers and never fixed it. It also rattles. Now check engine light is on. Bought it brand new and cash. So frustrated. I need my vehicle for work. I made this purchase to help my business. This is a huge hassle. Need your help. Thanks.