My wiper relays have arrived from China. I decided to start taking things apart. In order to get a puller on the wipers I had to move them away from the parked position so I just turn them on and when they were straight up, advanced the control to high. Since they don't move on high, they stayed there. So I tightened the puller as tight as I dare and the wipers won't come off. I've already sprayed penetrating oil on them. I start to give them a little shock with a small hammer. They still don't come off but the motor gives a couple jumps and than takes off. They start working on high. Took the puller off cus it was scratching the plastic cowl. Turned them off & on a couple times. They continued to work. I think the puller is a battery terminal puller.