What Causes the Lower Part of the Wiper to Shake?

[DelKinsley]

The reasons and solutions for wiper shaking are as follows: 1. Foreign objects between the wiper blade and windshield causing shaking: When the wiper is turned on, there may be a sharp friction sound between the wiper blade and the windshield. The owner can check and clean any foreign objects on the wiper blade or underneath the wiper to ensure the area is clean. 2. Friction in the wiper linkage bushing causing shaking: Over time, the wiper linkage mechanism may age, the wiper arm spring may lose elasticity, and the bushing may wear out or even fall off. Please inspect the wiper arm or linkage bushing. 3. Wiper motor causing shaking: If the wiper motor itself lacks power and shakes, it may be a sign that the motor is nearing the end of its lifespan. It is recommended to have a more detailed inspection at a professional repair shop.

[DiLucille]

Recently, the lower part of my car's wiper keeps shaking, especially when starting. The reasons are nothing more than a few points: the wiper arm fastening screw is loose, not tightened properly will cause the arm to wobble; the wiper blade is aged and deformed, the rubber is too hard and loses elasticity, causing severe jumping when wiping; oil stains or insect residue accumulate on the glass surface, affecting the smoothness of sliding. I often check if the screws are tight, just tighten them with a wrench. Regularly clean the windshield, such as wiping off the oil film with alcohol, and replacing a new wiper blade only costs a few dozen dollars. It's recommended not to delay for too long. When driving in the rain with blurred vision, even a small shake can be distracting and increase the risk of accidents. Simple maintenance can save a lot of trouble and make driving more reassuring.

[DiHector]

When I was a new driver, I encountered the issue of wiper blade chattering, which was quite confusing at the time. Later, I learned that it's mostly caused by worn wiper blades or dirt on the windshield. I tried cleaning the glass myself, repeatedly wiping it with soapy water, and after replacing the blades, the problem was basically resolved. It could also be due to incorrect wiper arm installation angle—a slight adjustment to the position can fix it. Regular maintenance is key; don’t wait until it’s raining to deal with it, as that can really affect your mood and safety. Sharing this experience in hopes of helping new drivers avoid unnecessary trouble and drive more smoothly.

[StLeo]

Windshield wiper chatter is truly no good, especially during heavy rain when it exacerbates visibility hazards. Lower section bouncing commonly stems from damaged wiper blades or loose arms, causing unstable movement. I always remind myself to promptly inspect and either tighten screws or replace the blades. Never underestimate it - such issues can distract focus and jeopardize safe driving. Developing a habit of simple monthly maintenance suffices.

[DiCarmen]

From a mechanical perspective, wiper blade chattering is often caused by insufficient tension in the arm spring or blade deformation. Instability at the lower section is commonly due to improper installation alignment or glass residue exacerbating the issue. I routinely check screw tightness and spring tension adjustment - replacing the blade usually resolves most issues. Using professional glass polish cleaner helps prevent skipping and extends service life. Small adjustments yield significant results in ensuring clear visibility and safety during rainy conditions.