Transmission issues

[rickz713]

So, my 2002 RX300 was having trans oil temperature issues. On long trips the trans oil temp light would come on. Fast forward and now the car only goes in reverse. I dropped the pan, replaced the filter, replaced the "D" solenoid, drained and replaced the fluid. Disconnected the battery to reset the PCM. No help. Any ideas? Anything I still need to try? Is it even worth trying to get this rebuilt or replaced? I have been quoted $3500 to rebuild it, $4000 to replace.

Edited July 31 by rickz713