Since its a silicone-based product that sits on top of the glass, it does come off over time and can end up on the wiper blade affecting performance. There is an alternative to rainx on the market called Trico View (formerly Aquapel) that actually bonds to the glass and thus doesn't come off the glass and onto the wiper blades. See related link below.
If it's plastic it may be damaged.
Windshield wipers don't work
Why are there windshield wipers inside the car?
they could be old and cracked.if their new they may not be slick enough,buy a can of rainx it should fix it. I remember getting a "factory recall notice" about the wipers (which I did not take advantage of) and have the same problem occasionally. I am planning on replacing the wiper motor.
Replace the windshield wipers.
Mary Anderson invented windshield wipers in 1903.
When purchasing windshield wipers that work intermittently, they can be any windshield wipers that are the correct size. The ability to work intermittently is a wiring/fuse ordeal. This does not play a part in the selection of windshield wipers that you choose from.
Replacing the windshield typically does not require replacing the windshield wipers unless they were damaged during the windshield replacement process. However, it is always a good idea to inspect the windshield wipers for any signs of wear or damage, such as cracking or splitting, and replace them if necessary to ensure optimal performance and visibility during inclement weather conditions. Regularly checking and replacing windshield wipers as needed is important for maintaining safe driving conditions.
The windshield wipers go back in forth if you now now what i mean
A bad relay switch will cause the windshield wipers to not turn off. Replace the relay switch and the windshield wipers should turn off.
replaceing windshield wipers toyota truck
In a 2001 Mercury Cougar, the fuse for the windshield wipers is located in the fuse box, which is typically found under the dashboard on the driver's side. You will need to remove the fuse box cover to access the fuses. Look for the fuse labeled for the windshield wipers; it is usually a 30-amp fuse. If the wipers are not functioning, check this fuse for any signs of damage or a blown filament.