Why does the wiper make noise when wiping?

[DawsonLee]

Reasons and solutions for wiper noise during operation are as follows: 1. The wiper arm is twisted upward. Solution: If the wiper makes noise during the upward stroke, it indicates the wiper arm is twisted upward. Stop the wiper in the middle position (pull the wiper control lever toward the steering wheel after turning off the engine), then gently lift it. Wrap the steel frame with cloth or a soft material, use a wrench or pliers to grip the wrapped part, and twist it downward a few times. After resetting, test the wiper; the noise should reduce significantly. If needed, repeat the process until the noise disappears. If the noise occurs during the downward stroke, twist in the opposite direction until the noise is eliminated. 2. Issues with the wiper blade itself. Solution: Wiper blades are rubber products and will harden and age over time, especially in winter. If the wiper no longer cleans effectively, the simplest and most effective solution is to replace it with a new blade. Generally, wiper blades should be replaced every one to two years.