What Causes the Abnormal Noise in Car Windows?

[PatrickLynn]

Car windows produce abnormal noise due to two main reasons: the glass shaking back and forth inside the door, or the glass getting stuck while being rolled up or down, leading to noise. Beneath the window in the door, there are rubber seals that hold the glass in place. If the rubber seals age, the friction between the rubber and the glass increases, causing the window to roll up or down more slowly and get stuck, resulting in noise. In this case, replacing the seals can solve the problem. Additionally, if the glass is fully lowered and shakes back and forth inside the door, it can also create noise. This shaking may be caused by issues with the window regulator mechanism or loose screws securing the regulator. In such cases, it's necessary to remove the door panel to identify the cause and perform the necessary repairs.