What are the causes of abnormal noise when car windows are raised or lowered?
3 Answers
Reasons for abnormal noise when car windows are raised or lowered: 1. Aging of window sealing strips; 2. Abnormal noise from the window regulator mechanism. There are sealing strips at the bottom of the door windows. If the sealing strips age, the friction between the strips and the window will increase, causing abnormal noise when raising or lowering the windows. If the noise comes from the window regulator mechanism, it is necessary to go to a repair shop to remove the door interior panel and inspect the window regulator. If the regulator is damaged, it needs to be replaced. Over time, cars often experience abnormal noise when raising or lowering windows, and the operation may become less smooth. There are many sealing strips on the car body, and these rubber components will age with prolonged use. Therefore, attention should be paid to the maintenance of these rubber components during car care.
Last time I drove my daughter to school, her car window made scary creaking noises when rolling up and down. I took off the door panel and found the tracks full of sand and leaves, all caked together. The rubber guides had hardened and cracked from long use, making the window move like it was grinding on sandpaper. There was also a hidden issue: two clips holding the glass had come loose, causing the window to wobble with every movement. The mechanic said such noises are 80% likely caused by dirty tracks or aged guides, especially for cars often parked under trees. Now during every car wash, I have the technician clean the window gaps with a fine brush and spray some track lubricant - the problem hasn't recurred since.
When encountering abnormal noises during window operation, first rule out three scenarios: First, check if the window seals are deformed or cracked, as aged rubber can cause squeaking sounds when rubbing against the glass. Second, inspect the regulator bracket inside the door panel—I once found loose mounting screws causing metallic clanking noises. Third, insufficient lubrication of the guide rails; use dedicated white silicone grease lubricant (never use engine oil as it corrodes rubber). Another often-overlooked situation: newly installed window films may cause sticking when operated before fully drying. For vehicles with anti-pinch function showing abnormal noises, immediately stop usage and inspect sensors to prevent potential module burnout.
