Rebuilding a transmission is one of the most expensive things that can be done on a car and I've been told it's one of the main reasons people dump cars other than timing belt issues. I've read conflicting reports of "when a transmission is going bad" and was wondering what one should look for / avoid when buying a high milage car with an automatic transmission.
I'm interested in two cases:
- No vehicle history
- An intentional attempt to hide the problem