Hummer Guy
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For some odd reason my transmission is popping in and out of overdrive, it act as if it don't know what gear to go, the only way it won't do this is if I get up to 60Mph or really put my foot down. I've done a little research and see people say about some throttle control issue or the TCM, I'm kind of clueless with these automatic transmissions
Just to mention, I did change the transmission fluid, looks extremely clean, and the shifts are very smooth, it just seems like it doesn't know when it should actually shift between 3rd and 4th.
Just to mention, I did change the transmission fluid, looks extremely clean, and the shifts are very smooth, it just seems like it doesn't know when it should actually shift between 3rd and 4th.
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