It is highly unlikely that they put anything in wrong because with these there would be an issue almost immediately.
With the added info of hard to get it into reverse and now it will not go into gear it sounds like the slave cylinder is the issue. I would suggest just taking it back in because if they did happen to do something wrong then they will fix it. Otherwise, the slave cylinder will have a warranty on it, and they will replace it at no charge to you.
No matter what I am pretty convinced there is an issue with the slave cylinder. Clearly, I could be wrong, but it is not uncommon for new slave cylinders to leak.
Nov 20, 2021 at 7:02 AM