Ok, I was driving my Cen ATX today on a Baseball field. When the car locks up and stops moving. So after and few minutes of inspection I realize my throttle servo horn will not move, with or without power. I loosened the throttle linkage up to see if there was a change and still no movement. What could be the problem here. And has anyone else had this problem and know how to fix it. Oh and when I do hit the trigger on my reciever I can hear the throttle servo motor trying to move the servo horn. So I am pretty sure that my servo motor is still good.