What Are the Reasons for Loud Wiper Noises?

[LeGideon]

The reasons for loud wiper noises are: 1. Aging of the wiper itself; 2. Presence of foreign objects between the wiper and the windshield; 3. Oil film on the windshield; 4. Deformation of the wiper arm. The functions of the wiper include: 1. Helping the vehicle maintain a safe distance from the centerline of the left lane; 2. Assisting the driver in determining the position of the left wheels; 3. Helping to judge the position of the right wheels; 4. Aiding in assessing the distance between the right side of the vehicle and the roadside; 5. Assisting in parallel parking; 6. Removing raindrops and dust attached to the vehicle's windshield. The method for replacing the wiper is: 1. Lift the wiper upright; 2. Press the clip below and remove the wiper rubber; 3. Take off the wiper; 4. Pry up the front end of the middle clip; 5. Insert the wiper into the middle clip, pull it tight by hand, and the replacement is complete upon hearing the clip sound.

[ONadia]

I've been driving for over 20 years and have encountered many cases of loud wiper noises. The main reason is aging wiper blades - when the rubber material hardens, it directly scrapes against the glass during operation, producing harsh squeaking sounds. Another common issue is dirty windshields with accumulated dust, grease, or insect remains, which increases friction noise. I recommend first using wiper fluid spray for temporary relief. Improper installation of wiper arms can also cause vibration noises, so check if the screws are loose yourself. If the motor is worn or lacks lubrication, it may produce humming sounds during operation, though this is less common. The noise becomes more noticeable in dry winter weather because the rubber isn't moistened. The solution is actually simple: regularly replace wiper blades, about once a year - it's inexpensive and ensures safety. Keeping the windshield clean is crucial; don't overlook this minor issue as poor visibility during rain can be dangerous.

[LeCorey]

I think most of the time when the wiper noise is loud, it's due to component issues, such as aging or torn rubber on the wiper blades, which cause squeaking when rubbing against the glass. Grease stains on the windshield are also a major cause, as the increased friction coefficient naturally leads to louder sounds. Unbalanced tension in the wiper arm or unstable installation can cause shaking and strange noises, which you can gently adjust and fix yourself. An aging motor might lack lubrication, leading to poor operation and producing buzzing or clicking sounds. You can check if the wiper movement is smooth to diagnose the issue. It's recommended to first clean the glass with a dedicated cleaner. If that doesn't work, replace the wiper blades—they're quite affordable at just a few dozen dollars—and ensure the model matches. Don't forget to top up the windshield washer fluid, as its lubricating effect can reduce noise. During regular maintenance, frequently clean the windshield and blades to prevent the problem from worsening and affecting driving.

[MacAlan]

The wipers on our family car often make noise. I found out it's mainly because the wiper blades have aged and the rubber has hardened, causing squeaking when wiping. A dirty windshield also has an impact, such as dust or bug stains. Replacing the wiper blades can solve the problem, and it's not expensive. Loose wiper arms can cause vibration noise. The sound is louder on dry days. I deal with the noise promptly to avoid poor visibility during rainy days leading to accidents. Clean the glass when washing the car and perform regular checks and maintenance. Safety first, don't be careless.