What Causes the Noise in the Wiper Rotation Shaft?

[ValeriaFitz]

Noise in the wiper rotation shaft indicates that the wiper arm is misaligned upward, causing the wiper to be non-parallel with the windshield and generating noise during operation. Solution: 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 a cloth or soft material, and 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 be significantly reduced. If the noise shifts to the downward motion, twist it in the opposite direction until the noise disappears. Daily Maintenance Tips: Regularly clean the wiper blades with a cleaning agent and remove any grease residue from the windshield to prevent friction noise during operation. Replace the wiper blades as needed to avoid aging due to weather conditions, which may impair their functionality.