What Causes the Squeaking Noise of Besturn B70's Wiper?

[Christopher]

Reasons such as excessive pressure on the vertical wiper arm of the windshield and looseness in the spring wiper system. Specific reasons: Excessive pressure on the vertical wiper arm of the windshield, looseness in the spring wiper system, hardening, deterioration, wear, and natural aging of the wiper rubber strip, etc. Solutions: Remove both wiper blades and gently place the wiper arms on the windshield; observe whether the small metal segment at the front hook of the wiper arm is parallel and tightly adhered to the glass; find a suitable tool, preferably pliers, to directly adjust the wiper arm, aligning the small metal segment of the hook to tightly adhere to the glass; you can try replacing the traditional frame wiper with a frameless wiper; the owner can clean the debris under the wiper and sand the wiper with sandpaper.