Wondering if anyone has any experience with what seems to be a very odd problem.
Our windshield wipers work just fine. They cover the entire surface of the windshield. Not a drop remains.
Until the vehicle starts moving.
At about 15-20 mph, the amount of surface covered by the driver’s side wiper begins to decrease. At full speed (50+), close to half the intended surface is not being cleaned by the wipers. This creates a residual puddling from the region that is not getting wiped.
It’s weird to explain. I tried to illustrate this in an attached image.
Where we live gets 60-70 inches of rain a year - almost all of it between now and March, and so this isn’t really something we can just “deal with.” Rain-X helps, but this is ultimately a safety issue.
It’s also worth noting that we replaced the windshield about a year ago thinking that perhaps a sub-standard factory windshield (Safelite) was to blame. Disappointingly, a couple months after that when we got a rain substantial enough to need the wipers, we realized that the same issue was still present.
Again, the attached image tries to explain this visually.