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  1. I So I picked this truck up in December of ‘20 and I’ve been in love with it ever since. This is a 6.2 btw with about 13k miles. A few days ago on the way into work, I noticed a weird shake that felt like a rough gear shift, which isn’t TOO out of the ordinary. After exiting the freeway, I have it some gas to get over lanes and I felt the ugliest shake ever from the truck. Noticed it only happened with light pressure on the gas so got to work and left it alone. went home and drove fine that day. Next day comes and take a drive about 20 miles and nothing too strange until on my way back home I start hearing a quick paced ticking from the engine bay. And then with light pressure on the gas, it starts to knock. Finally got a check engine light and this thing is knocking and ticking like crazy. Going to have it taken to the dealer tomorrow. Not sure what to expect. Also, got an on star alert that “ an issue with engine and transmission system has been detected”. Anyone experience this yet? Or any similar issues? Here’s a vid of how it sounds
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