My 2007 pt cruiser shifts hard and when the transmission gets over heated its like it's throwing it into limp mode

Hello, there is obviously some kind of problem occurring that needs to have some diagnostic testing performed. This is the only way to find out what is going on and what is causing the problem you're experiencing. There are any number of guesses to what could be happening, but all of it is pointless because testing is needed to determine what is really happening. Perhaps there are diagnostic trouble codes from existing failures that have been stored in then engine's processor. These codes could help a technician troubleshoot the source of the problem. If your vehicle is acting this erratically, there will be things testing will reveal. Certainly have it checked. https://repairpal.com/auto-repair-near-me