Hi everyone,
I collected my car from the garage after having gearbox and torque converter refurbished. The garage tested it after refitting and said the car was ready for pick up. When I was driving home the car would not go above the 3rd gear. I could change between 2nd and 3rd manually but in auto mode it was stuck in 3rd.
The speedo stopped working too.
I took the car back to the garage and they already took a quick look at it and said that all the plugs are in place. Tomorrow they will be checking more thoroughly.

Any ideas what might have gone wrong?
Thanks for help