Hello,
I 've recently changed tcm after having problems with flashing gear box not accepting reverse, etc.. I replaced TCM with local transmission shop (not dealer) and above problems went away but Right after the tcm was replaced I start to feel hasitating and jerking from a stop to 40m when accelerating slowly. When I push pedal to the metal this jerking does not occur. When I called transmission shop where I had my TCM replaced they said that that is probably something else and want more money for diagnostic. Could it be that TCM was not reprogrammed or something?

any advice is good,
Thanks!