Have you checked the rails,slides,for obstructions causing this?. Possibly one of the pieces in the mechanism is damaged or broken?. You can see/tell when the panel is removed from door to see when you roll up/down the window. Maybe not lubricated??????
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Have you checked the rails,slides,for obstructions causing this?. Possibly one of the pieces in the mechanism is damaged or broken?. You can see/tell when the panel is removed from door to see when you roll up/down the window. Maybe not lubricated??????