Windshield Wiper/washer problems of the 1999 Mercury Mystique

The windshield wipers do not always work when needed. I have taken the car to dealers several times since purchasing car but no remedy has been found for the problem.

The passenger's side windshield wiper extends into the driver's field of vision. On the up stroke all water on the passenger's side is pushed into the driver's view area, blinding the driver for about 1 second before the driver's side wiper on down stroke removes the water. So for every cycle of the wipers the driver can not see the road for one second during moderate to heavy rain. The passenger side wiper should not extend into the driver's view area on its up stroke.