I have a 97 Grand Prix (4 door) and recently had the window regulator on the passenger side go bad. I went with one of these $40 ebay deals for a new regulator, as I have purchased regulators from ebay before and they have seemed to work fine. However, today, when I put this regulator in, it could barely push my window up. There is some resistance (from the weather stripping I assume because I don't see anything else in the way) when I manually move the window up and down with my hands, but the window is properly set in the window tracts. The motor should be able to provide enough power to overcome some resistance right? Anybody think this is a dud motor?