Hello,
This can be due to either the wiper arms are stripped out or the gear that connects the wiper to the motor (wiper transmission) is damaged.
You will have to inspect the base of the wiper arm and make sure that the splines are not stripped on the arm or the shaft on the base.
I have included the diagrams for the arms as well as the wiper transmission for your reference.
https://www.2carpros.com/articles/how-to-replace-windshield-wiper-blades
Please let me know of any questions.
Thank you.
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Friday, September 24th, 2021 AT 10:47 AM