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