What Causes the Abnormal Noise When Car Windows Roll Down?
2 Answers
The causes of abnormal noise when car windows roll down are: 1. Faulty or damaged window regulator motor; 2. Friction between the glass and weatherstrip, possibly mixed with impurities or foreign objects; 3. Various foreign objects inside the door trim causing the noise. The reasons for abnormal noise from car windows during driving are: 1. Loose fit between the window regulator and door: Although the window appears to be fully raised, the glass may not be tightly sealed, causing noise with slight road bumps—this requires removing the door panel to retighten the regulator screws; 2. Aging vehicle weatherstripping: As the car ages, weatherstripping naturally deteriorates, reducing its tightness against the glass, leading to glass wobbling and noise—replacing the weatherstripping is the solution; 3. Aging door felt strips: These strips clean the glass surface and secure it to prevent wobbling—if they age, replacement is recommended.
I've been driving this car for over ten years and have encountered several instances of strange noises when rolling down the windows, which is quite annoying. The most common issue is dust accumulation in the window guide channels - the sliding tracks where glass moves tend to collect dust, sand particles, or small leaves, causing squeaking sounds when the window moves, especially noticeable in dry weather. I recommend cleaning the guide channels yourself using a soft brush or damp cloth, or try spraying some specialized silicone lubricant (avoid strong corrosive substances). If this doesn't solve the problem, it might be due to internal wire wear in the window regulator or motor aging, requiring professional inspection. For new cars that make noise immediately, it could be improper alignment during installation, necessitating adjustment at the dealership. Neglecting these minor issues may lead to window jamming or malfunctioning operation, affecting driving safety. That's why I clean my window system every three months as part of routine maintenance.
