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CMate

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  1. CMate
    Thank you for the warranty information. I have a 2017 Yukon Denali 6.2 8 speed. I have the exact same issue. Same two fault codes (P0700 & P0711). I get the hard shifts occasionally. And at highway speeds of more than 65 mph it sounds as though I'm in 4 wheel drive even though it reads 2 wheel drive. I also have the engine Ticking noise that started this past winter and never went away. Bugs the crazy out of me. Sounds like lifters but not sure. Any help with this noise would be greatly appreciated.
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