My 2001 acura tl. Transmission makes my rpms drop really fast, sometimes rpms wont go more than 2k and on other gears when i drive slow the car moves back and forward like a manual stalling out. But this is an automatic.

What should i do ? What do i replace?

No. 1-1


sounnds like tranny is going out, more than the car is worth to fix correctly. You could try a used one if you're a gambler