Sounds like one of your tie rod ends came apart. You can't press it back onto the ball. It won't stay. The socket has become worn and it popped apart. You will have to replace the whole tie rod end. They just screw off the tie rod. They have a lock nut that has to be loosened and then screw the end off. You'll have to unbolt the stud part that popped out of the socket, from the spindle assembly.