Overdrive light blinking and will not go past 55 MPH

When I bought the car, the owner informed me that the overdrive light flashes and that the shift solenoid needed to be changed. The overdrive wouldn’t engage, the light just would blink. Yesterday I changed the shift solenoid, torque converter clutch solenoid and the transmission control solenoid since I was already in there. When I first turned the car on after changing those the light didn’t blink and I was able to press the button and it engaged and disengaged, then the light started to flash again. The only difference being that now the overdrive does engage at random, and the car won’t go past 55 MPH and you can feel and see with the blinking light when it engages and disengages.