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By Silver Yeti · Posted
I'm sorry to hear about this. I just bought my truck 2 months ago, 2021 Silverado 1500 RST with the 5.3L L84 V8 and the 8L90 8-speed transmission. It had 35,875 miles on the clock when I bought it and I'm coming up on 37,700 miles now. I traded in my 2019 Colorado with the 3.6L V-6 which also had the smaller 8 Speed transmission. Anyway, I have a buddy of mine who has been driving Chevy Tahoes for a while & he warned me about the 6.2L V-8's and said that there is at least one class-action lawsuit against Chevy/GM, because of all of the problems and blown up 6.2L engines that are coming back to GM, while they're still well within their warranty periods. I know the 5.3L's have some of their own issues, as do the 8 speed 8L90 transmissions, but I feel pretty confident that I've addressed most of the common, known issues. I would be curious to hear what the dealership tells you. I've heard some pretty horrific stories, about how GM/Chevy has been handling these 6.2L engine failures. EDIT: I just read your response that the dealer o.k.'d an engine replacement. Pretty amazing that they have none of these engines in stock - that's a big FAIL for GM. Honestly, if I were in your position - I would not want another 6.2L, but that's your decision. -
By GMCustomerService · Posted
We understand the frustrations that engine concerns bring, @2022 Elevation If you are currently experiencing symptoms of lifter concerns with your Sierra, we would like to learn more. Have you brought your concerns to the attention of your local GMC dealer? If not, we highly encourage you to do so. That said, would be more than happy to provide an extra layer of support in the process. To begin, please visit: https://s.gmc.com/support-request and fill out the pertinent details in the support request form. This will ensure that your request is routed properly so we may explore the best path of assistance moving forward. We will be sure to keep an eye out for your outreach. -
By GMCustomerService · Posted
We understand the inconvenience that comes with mirror concerns like yours, @TexasKeith. For assistance with an official diagnosis and finding compatible parts for any of your Sierra's recommended repairs, we encourage you to visit your local GMC dealer. We are happy to provide an extra layer of support between you can your dealership as well. If you have any additional questions or concerns, please visit: https://s.gmc.com/support-request and fill out the support request form. We will keep our eyes peeled for your outreach. -
By Silver Yeti · Posted
My 2021 Silverado 1500 RST with the 5.3L (L84) engine came with DFM, but thank God for the "Range" AFM/DFM disabler module, which plugs right into the OBD-II maintenance port. The best $300.00 I ever spent. Range Technology RA003B AFM/DFM Disabler -
Special order? I go on the Chevy web site and the only option I see for a regular cab is a standard bed.
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