I have a question regarding the window regulator? Both of my windows when put in the down position, usually for the first time make a slight "click noise", it only happens once then it is fine, I was told it might be a regulator? Its only when the window hits the bottom, is that normal? I also can see a very faint vertical track lines that wipe off on each window but I wonder if that is just dust since my building is being renovated there is alot of dust around. Thank you.
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