Thanks to all who suggested things to try concerning my malfunctioning windshield squirter. I did try everything but nothing worked. The pump is fairly simple to get to and once you take it apart, you will find a triple/triangular shaped o-ring. This o-ring separates the three valve water distribution piece. As the plunger moves in and out it apparently sucks water through a one way valve from the reservoir and then pushes it out the other two one way valves to each wiper blade. These three chambers are separated by a special o-ring. It looks to me like this o-ring is totally shrunk and undersize. I seem to remember replacing this part about fifteen or twenty years ago and that solved the problem. The mechanical pump is still working and the hoses aren't leaking so it must be this o-ring or the plunger itself. The first step is to replace the easy part and if that doesn't work, then it will be time to fix or replace the plunger. Does anybody know if these parts are available and the best place to find them? I should replace the valve body assembly just to make sure. But, the o-rings only would probably be the ticket. Any help would be greatly appreciated.