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After being at the dealer for the 2nd time, they drove it over 100 miles so it could “re-learn”. 1-2 is better but the rest still have the rpm flare. The 6-5 downshift when under load is absurd, rpms flare to 2500. I have a tach video but can’t get it attached
Mega cab 4x4 purchased new March 2020. 36000 miles. 6.7 cummins
When shifting the rpm’s go up about a hundred right before the actual shift like it’s slipping. Any ideas?