Power Window problems of the 2001 GMC Sierra

Passenger window would not go up when button to raise it was pushed. Window would go up and down when mover by grabbing the glass. Took it to dealer who took apart the door then said the regulator was broken. A wire cable in the mechanism was broken, but the wire by itself was not available. Not covered by warraty, as this was a "wear " item. Mileage on truck 24000 cost $717. 00.

Passenger-side window stopped working and made grinding noise when button pushed to roll down. Disassembled passenger door to investigate. Found electric window motor cable broken with obvious signs of corrosion (rust) at point of failure. Also noted substantial corrosion on screws holding motor assembly in place.