Driver side window on my 98 chevy truck rolls up 1/3 of the way and starts clicking something fierce, at that point it stops moving and i have to grab it and pull up to continue rolling up my window. This happens at 3 points when rolling it up. it is a nuisance but havent had a chance to get it apart yet. if i dont attempt to help the window up the button is unresponsive until i jerk the window up. Have a hunch it could be a couple things but, has anyone had this problem before?