That sounds like the torque converter clutch is staying fully or partially engaged when you come to a stop. It should disengage anytime it sees the TPS show you let off the gas and the eng is at idle and also anytime it sees you stepped on the brake pedal. How does the fluid look. It can be the cooler is partly clogged as I have seen it cause the fluid press to cause the lock-up clutch want to apply some when it is off from the cooler being clogged up some and restricting fluid flow and I have see it cause it to be worse in reverse. But if the solenoid is staying closed it may be causing your problem also. The pressure to the lock-up solenoid circuit and the lock-up valve on yours should come through the 1-2 shift valve as it wont let the lock-up valve get fluid pressure to work until it shifts into at least second and then the fail safe valve which is also part of the lock-up circuit wont move over for lock-up until it shifts into third and then the 2-3 shift valve sends fluid pressure to the fail safe valve. The lock-up solenoid blocks a fluid vent when on so if it sticks closed it can cause the lock-up converter to come of to slowly by not letting the fluid pressure vent out of the circuit which may also cause it to still be partly on when you come to a stop. Hope this helps some. Also many cooler lines have a factory check valve in them that can also get clogged some so you may want to check it. You may have to do some pressure check testing. Ron