![2021 GMC Sierra 6.2 broken valve spring with 300 miles on it. Not the first one I've heard about either. : r/Justrolledintotheshop 2021 GMC Sierra 6.2 broken valve spring with 300 miles on it. Not the first one I've heard about either. : r/Justrolledintotheshop](https://preview.redd.it/2q3ignpor9561.jpg?auto=webp&s=60f84cbac84054f32b52aa2afaa91ad0bcc28545)
2021 GMC Sierra 6.2 broken valve spring with 300 miles on it. Not the first one I've heard about either. : r/Justrolledintotheshop
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What could have caused this broken valve spring? - Page 2 - LS1TECH - Camaro and Firebird Forum Discussion
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Another broken valve spring! 2014 Sierra 6.2l - 2014-2018 Silverado & Sierra Troubleshooting - GM-Trucks.com
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