Why do I have a grinding sound when I put down the windows? on 2009 GMC Sierra 1500

Every time I go to put down the windows in my truck there is a grinding noise. Could this be a simple fix or is it more complicated?

by in Coraopolis, PA on December 10, 2013
2 answers 3 comments
ANSWER by on December 10, 2013
Noise when raising the window also?
COMMENT by on December 10, 2013
Yes.
COMMENT by on December 10, 2013
More than likely the 'cable' drive window lift assembly needs to be replaced. They give some problems.
ANSWER by on December 11, 2013
You might need a new window regulator, the question would be whether it comes with the motor or not.
COMMENT by on December 11, 2013
Assembly!