My driver side of my power window is not working, when pressed, can feel some minor vibration, but the windows isn't moving.The other day, the mechanic remove the panel including the arm and the motor and it is moving fine without the glass but slowSo the mechanic replaces the white plastic "thingy" or gears ?, after that it was working fine until the following day, it had the same problem again.So i was told the motor is weak and need to replace and it costs RM500 for the motor.Need all the sifu advise whether to replace the new one or there are ways to fix the motor ...................Please help ......................