My drivers side vent window regulator was broken, so I replaced it with a used one, which works, but now I notice the vent window does not fully close even when you turn the crank as far as it will go. You can take your hands and just push it the rest of the way and it stays closed. Is there a way to adjust this? I looked in the manual but I couldn't find anything nor could I see any adjustment on the mechanism. Thanks.