my driver side,driver rear,passenger rear windows all dont go down anymore. :-(. the driver side i can still hear the motor but on both rears there no sound at all when i try to put it down. what do i need? what do i change? im thinking of changing the whole power window motor? any cheap altenatives? need your help guys before i go and sell my soul to the stealer and let them do the job. Thank you for any advice