I replaced the passenger side wiper a few weeks ago and they were working fine. Now I‘m having an issue with them interfering. I went back to Auto Zone and the guy there said that he‘s seen that frequently with this model. He popped a cap off the base of the wiper arm and showed me a 15 mm nut in there. He said that if I loosen the nut I could adjust the wiper arm down the face of the windshield to eliminate the interference. He suggested that this means of securing the wiper arm to the bolt is not completely effective and the arm can rotate about the bolt to some extent. When I removed the nut I saw a washer around the bolt and the arm won‘t rotate around the bolt. The washer around the bolt won‘t come off. It appears that the washer may be painted onto the surface it‘s resting on. Any suggestions would be welcome.
When you say they are 'working fine' are you referring to the wipers wiping performance? Seems to me if the 2 blades are interfering with each other then they are not 'working fine'. Check the length again of the blade you replaced, if you did not physically move the arm's position on the wiper pivot to begin with the problem is with the blade. The wiper pivot is tapered, so is the arm where it attaches, it will take some careful prying around the base of the arm to free it.
if you did not have a problem before you installed the wipers check the length of the wipers. if they are too long the will contact. you can move the arm but if it didnt happen till you replaced them that is where i would look it is common for the wrong wipers
