Truck shifts like crap on tune...didnt before

[BLFX4K]

Originally Posted by JackandJanet

Does "dropping" mean it feels like the power is being reduced during the shift? If so, that could be a problem in the torque reduction strategy that is employed during shifts. And, I suspect Bill could change this for you.

- Jack

The dropping is more of like something dropped out the bottom of the truck or it fell into gear.

Its a slow hard slam, does not feel like that at open throttle or on the stock tune