This topic contains 0 replies, has 1 voice, and was last updated by louie941 1 month, 1 week ago.
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This topic contains 0 replies, has 1 voice, and was last updated by louie941 1 month, 1 week ago.
The transmission is an 8 speed and slips when it shifts from first gear to second gear, the first time you drive the truck. As the transmission worms up the slipping seams to stop. although It is now starting to do this more often even after the truck warms up. I got this truck new and it now only has 2400 miles on it. I have had it at the dealers 3 times for this problem and they tell me there is nothing wrong because they can not duplicate the problem. so I looked on the internet and see GMC has had a lot of problems with the 8 speed transmissions on the older models up to 2019 but not the 2020 or 2021 models. Can anybody give advice about this problem?
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