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    2007.5 yukon denali high rpm 2nd-3rd late shift

    Alright guys this ones been driving me nuts 2007.5 yukon denali with the 6.2l when cold everything shifts fine when trans temp reaches above 120f from 2nd gear to 3rd is a high rpm 2-3 second pause before entering the entering 3rd Ive verified its actually in 3rd with the manual selction once...

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