What Causes the Friction Sound Between the Wiper and the Windshield?
2 Answers
The reasons for the friction sound between the wiper and the windshield include: 1. Wiper blade issues: Wiper blades are made of rubber, and over time, they can age and harden; 2. Foreign objects between the wiper and windshield: If there are foreign objects between them, the wiper will produce friction and noise during its back-and-forth movement; 3. Deformation of the linkage mechanism: Due to the relationship between the motor and the intermittent relay, responses that are too fast or too slow can cause friction during operation; 4. Incorrect wiper arm angle: If the angle of the wiper is incorrect, the wiper blade may move irregularly on the windshield, also causing noise. The wiper is a device used to remove rain and dust attached to the car's windshield, improving the driver's visibility and enhancing driving safety.
The most annoying sound while driving is the squeaking noise from windshield wipers. There are several common causes. The main reason is aged and hardened wiper rubber blades that need replacement; oil film, bird droppings, or tree sap on the windshield can also cause friction noise; aged wiper arm springs with uneven pressure worsen the noise; in winter, ice on the windshield directly damages the rubber blades, producing a screeching sound; improper wiper angle during rain may also cause rubber blade vibration. It's recommended to first clean the windshield and wiper blades, and replace them if cleaning doesn't help. I personally change my wipers every six months and apply wax to the windshield to prevent oil film buildup, which works well. Ignoring this noise long-term is not only irritating but may also scratch the windshield. Replacing them with branded wipers like Bosch only costs a few dozen dollars.
