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Dear Motor Medics, I have a 2008 GMC Acadia with a transmission problem. It has had three transmissions replaced starting with the first one in 2011 just at the end of the factory warranty. The next replacement was in 2016, then a third replacement in 2020.
The Acadia only has 105k miles on it and it is starting to do the same thing it did each time the transmission failed before. When shifting from first to second gear the transmission slips then the vehicle will only move forward in second gear until I turn the key off and on again.
The transmission shop says it needs to be replaced again. What can we do to make this the last one?
Thank you, Shannon in Cleveland, Ohio Dear Shannon, This year Acadia was known for transmission problems and there was some special warranty coverage for them in the beginning. The second gear wave plate had some issues along with some other parts. Usually once they are rebuilt the problem is taken care of, but in your case if it was replaced, we have no way to know if the internal upgrades were made to fix the known issues.
If you are going to replace it again, choose a good rebuilder such as Certified Transmissions, who can get you a correctly modified transmission with a long-term warranty. In our experience we have not had to replace one again, even after many years. Make sure the transmission shop checks for other faults too possibly affecting it.
Take care, The Motor Medics
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