Well it looks like my wipers are doing basically the same thing and I finally got to the bottom of the situation. They seemed to get slower and slower and finally they siezed altogether.....finally coming to rest mid windshield. I took it all apart today and fully expected to need to get a new wiper motor, but to my surprise the motor was in great shape and spun well unloaded. Next I decided to test the wiper linkage. I tried to pull the linkage arm back and forth and it did not budge (and I mean not at all). At that point I decided to just pull it all out so I could get a better look at why it was binding up. After futher inspection it turned out that one of the triangular wiper stalks was totally siezed up (the bearing was absolutely solid and there is no way to disassemble for service). I was able to beat it free with a hammer, vice, channel locks and alot of WD40, but it needs to be replaced because the motor is still laboring to move the wipers (you can see it move against the rubber bushings) and I don't want to have to pay for a motor too.
Has anyone else ever had to replace the linkage? are there multiple pieces?
Any idea on the cost of this item?
You can see here (the triangular wiper stalk in the middle of the windshield was siezed up solid):