just had my bad tranny replaced. after getting it back it hesitates after warming up while driving, when it hesitates the rpms wiggle up and down. i am not sure if the problem is in the motor or the tranny, but i would guess the tranny since i never had the problem until i got it back with the new tranny. the tranny shifts good though. any ideas?

 

Sounds like something in the trans isn't holding. Does it do it in all gears? Does it do it at different RPM's?

Frank

 

My guess is they disconnected something and forgot to hook it back up. Is it a new one, they rebuilt your old one or a different rebuilt all together? I would have them take a look and see if they can figure it out.