Have a 2015 2500hd 4x4 reg cab. Driving under normal conditions it gets hot enough to lock out 6th and wont upshift back into it until you park and cool down. Trans shifts fine, fluid is perfect always been changed every 50k, put in a new valve body , truck is not tuned. What should I look for ?
6l90E 2500 Hd getting hot locking out 6th
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I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.
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