Driver seat stuck at down position

[novemberr]

Hello,
My driver seat was stuck. It moves forward/backward fine. The front part tilts fine too. But the back part doesn't go up/down. It stays at the most down position. When I use the switch, I can hear a click sound from the motor. But the seat doesn't move. I tried to remove seat cover so that I can reach the screw. But I think the seat needs to be removed first before seat cover.

Please give me an advice how to fix it or remove seat cover without removing the whole seat. Thank you.

I found this similar thread. But there is no solution for it.
http://www.tahoeyukonforum.com/threads/driver-seat-wont-go-up-or-down-but-has-power.63101/

 

[novemberr]

Fixed. I used a pliers to rotate the screw clockwise at the same time clicking the switch.
I think the screw is stuck too far to the end and there is no thread/teeth for the motor to grub. So my solution is to use the pliers to help the motor to move the screw.

I make a small open washer from hang wire to prevent this. I snag it between the motor and the washer on the screw.