So after searching some of the other forums (AW, AZ) it seems like this is a fairly common issue, but I jumped in the car late last night at the tail end of a rainstorm and when I hit the wipers they only moved about an inch at a time. Has anyone here had luck just hitting the joints of the linkage with PB Blaster, or is a full teardown and clean up of the joints necessary to get them back functioning?