suddenly well for the past week my window would go down only if i help the switch a certein way now its totally not working. could this be the motor or the weitch for the driver side itself? when i have the vehicle off and try to put the window down the lights dim so im leaning towards the motor.

if so do i buy just the motor or the regulator also> thanks 1989 bonneville LE

I agree it is probably the motor....you won't know if you also need a regulator until you open it up....

I had issues with both from doors on my 90 Bonny, and I bought a pair on ebay for $46....probably cheap crap from China, but they may outlast the rest of the car...haha