What Are the Reasons for the Noise When Car Wipers Scrape the Windshield?

1 Answers
SanColeman
07/30/25 4:53am
Car wipers scraping the windshield produce noise due to the following reasons: 1. Loose contact at the U-joint of the wiper arm or aging and wear of the rubber blade; 2. Misalignment of the wiper arm angle, causing the wiper to exceed a 0-degree angle with the windshield surface; 3. A sticky windshield, often caused by a layer of hard-to-remove mixed oil film formed due to lack of cleaning. The method to use car wipers is: 1. Locate the wiper control lever on the lower left side of the steering wheel; 2. Push the wiper lever up one notch to activate the wipers; 3. To turn off the wipers, push the lever down to the 'off' position. Wipers can be categorized by their driving mechanisms into mechanical, vacuum, pneumatic, hydraulic, and electric types.
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