07 CLASSIC TRANNY QUESTION
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Oilfield_Mafia (07-08-2009)
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Any time you adjust the power level of the motor (AKA install, remove, or adjust a chip or tuner), the transmission has to relearn its shift strategy. So, if you continue to drive it, the transmission should adjust that flare or hesitation out. IF not, then you may have to have the Tap Cells reset in the TCM and perform a relearn, which isn't hard. Last Allison we built took about 30 minutes to "learn" the 3-4 shift.
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