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Stock tranny problem 2001 duramax
I have a 2001 GMC Duramax... stock allison transmission. The truck has developed a weird problem where it will not shift into 3rd unless you let off the gas. I have a light +50hp tune on it and I am pretty sure this happened on the stock tune as well. It doesn't happen every time, only...- mav7
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- Forum: Mike L's Trans Talk