Hi there, I have this issue of my power windows not going up or down. When I bought the car, they used to work slowly. Now the electric motor seems weak. Here's the video : http://youtu.be/r5QkqJ5Z0w4

I want to know if its necessary to buy the complete power window system or
Need to just get the regulator?

If have found the regulator alone is like $150 and thr motor like $200 i dont know what to fix first...

Any help here?