Afillingim
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I’ve got a 2008 GMC Acadia something is causing it to down shift and causing the RPM to go up for no apparent reason. Has anyone else had any problems like this? I’ve taken it to the mechanic and they said it’s a transmission problem but I also took it to a transmission shop and recently had the transmission rebuilt and I’m still having the same issue. The transmission shop hooked it up to their diagnosis machine and said there’s nothing wrong with the transmission since I had it rebuilt. Any help would be greatly appreciated TIA