So my driver side power window has been acting up lately. When i hit the down button it slowly grinds it way down maybe a few inches then stops if it does go down at all that is. With some help pushing it down i can get it majority of the way down. When i want to roll up the window i have to pull up on the switch then give it a firm bump then it will go up by its self. if it makes any difference it seems to work better in the winter then in the summer. Any suggestions?