Last night, in the pouring rain (of course) the front passenger wiper stopped working. It just stayed in its parked position while the driver's wiper did its thing. I took a quick look 10 minutes ago and removed the screw and washer holding the wiper arm on to the threaded rod. I tried to removed the wiper arm, but it didn't want to budge. I'm guessing the cowling (under the wiper arm) needs to come out, so it would seem the wiper arm needs to come off first.
Any suggestions welcome. Maybe more force (clam hammer) under the wiper arm and it will pop off?