My O/D lamp lights and the transmission comes out of overdrive while
driving at highway speeds (typically 60-70 mph). This behavior just
began today, I am not towing and the ambient temperature is around 50
degrees. One time the Transmission Hot indicator came on, but went out
after I stopped, turned off the engine and restarted.
If I stop and turn off the engine, then restart, the O/D indicator goes
out and the transmission works fine for probably 15-20 miles, then the
routine starts over.
The transmission has plenty of fluid, still red, but I do smell that
telltale hot "something" smell when I walk past the radiator.
I have never changed the transmission fluid/filter. Should I have the
dealer change it and adjust the bands as the owner manual says?
Any other ideas?