What Causes the Abnormal Noise When Car Windows Are Rolled Up or Down?
2 Answers
Car windows making abnormal noises when rolled up or down can be attributed to the following reasons: 1. It might be due to aging of the window seal strips. Once the seal strips age, the friction increases, leading to abnormal noises. This situation tends to be more noticeable in summer because aged seal strips expand more significantly under the sun, increasing friction and consequently making the noise more severe. 2. Another possibility is that the gap between the window and the seal strip is too dirty. Particles in the dust rubbing against the window can also produce abnormal noises. 3. The window guide rails being dirty could also be a reason. 4. A malfunctioning window lift motor may cause abnormal noises during window operation.
I've driven quite a few cars, and when there's abnormal noise during window operation, it's usually due to accumulated minor issues. Lack of lubrication in the tracks causing dry friction sounds is the most common, especially after rain or during winter. Aging, deformed, or hardened seals can make the glass squeak when moving up and down, sounding like teeth grinding. Sometimes small stones or dust particles get inside the door, getting stuck in gaps and creating screeching noises. I didn't pay attention initially until the noise became unbearably loud, and upon inspection, found slight wear on the window regulator motor gears - left unfixed, the glass might have gotten stuck. I recommend regularly spraying dedicated window lubricant on the tracks, keeping them clean, and avoiding prolonged exposure to sun or rain. Be proactive with prevention to avoid major problems later.
