Any ideas on the cause / solution to this one?
While stopped or at slow speeds, the wipers make a thumping noise right as they begin the upward strike -- almost as if they were beginning lifted off the glass, and being dropped onto it.
This isn't the dry rubber dragging noise. It's a single, loud "Thump" each time.
I've been noticing this usually during intermittent operating, and it doesn't happen 100% of the time.
Once I begin moving at normal speeds, the noise goes away. It's definitely speed dependent.