shifting problems after changing the TCM unit

[101luvdonut]

checking if anyone else had an issue like this? after TCU transmission valve replacement the engine does a surge after gear shift. Took it to the dealer and they said that this cannot be erased.
thanks for any inputs., looking forward to it.

 

[harryp0tterhead]

You could try to reset your ECM or have it updated, you might have an outdated firmware. its typical for the RPM to float or hover then drop when slowing down.