Another 3rd problem but different.
I have a better diagnosis of it now. It pops out if I shift into third at a low speed.
One example is I cannot start in third from a dead stop, it pops out every time.
If the car is rolling 1 mph I can put it in third and go fine. (testing purposes only)
I can shift the 1/4 mile very quick and never have a problem.
It's a 2000 year trans with 45,000 miles.
Dexron 3 fluid.
Was cags designed to avoid this problem? (my car never had cags)


