When there is a problem with the car's window regulator motor, a series of symptoms will appear. Firstly, the most obvious symptom is that the glass cannot be fully closed or opened. If there is a problem with the motor, the glass may only be able to be opened to one position or cannot be fully closed. Secondly, motor issues may cause the glass lifting speed to slow down, which can also be a noticeable symptom. In addition, motor issues may also cause significant vibration during the lifting process of the glass, which can affect the stability of the glass. Finally, motor issues may cause abnormal noise during glass lifting
If you notice the above symptoms in your car, it is likely that there is a problem with the window regulator motor. It should be noted that if there is a problem with the motor, it may need to be replaced, otherwise it may lead to more serious problems. When replacing the motor, it is recommended to choose a reputable car repair shop for maintenance to ensure safety and quality