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Reply To: 2021 GMC Sierra 1500 AT4 Lifter Collapse

#831332
gpglan
Participant

You can check my post for more details but my spanking new Sierra 1500 Denali 5.3 has engine failure at just 1,000 miles. I’ve only had it a very short time. Lou’s clacking from engine, metal particles in the oil filter. GMC thinks new engine is needed but they are going through ridiculous testing to get to some conclusion. To me metal in oil with those sounds is terminal. I’ve owned Fords my whole life. But I got so tired of the endless issues. This is FAR worse. If I can lemon law out of this I will. And never look to a GM product again.

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