Quote:
Originally Posted by Jonnydz
So u think gm fixed the pump in the newer zl1s? I would love to hear your explanation supporting this
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Pretty simple really, GM released a tech bulletin specifically stating that the 2017 and 2018 model years were affected. The oil pumps were redesigned in late 2018 so the 2019+ models had the redesigned oil pump. Oil pump failures dropped to normal failure levels after that. End of story.