help windshield wipers going crazy

I have 97 grand prix se . When i turn the windshield wipers on they work fine the problem is when i turn them off istead of returning to the bottom home position they just go to the middle of the windshield like it thinks thats where the home position is.. please relpy

Basically the wipers are not going to the at home park position. Common problem if you live in areas where you get a lot of snow and/or ice.

The end of the wiper motor has a stamped steel plate attached to it with a formed tab. This tab acts as a location indicator for the motor when you switch to the off position (i.e. reverse the motor to retract the blades). In most instances the tab can becomes bent enough so that it will not contact at the proper stop point. Subsequently, the reversed motor continues to turn until is jams against some other area, not the intended toggle.

You must remove both wiper arm/blades to correct the problem. Make note of their position on the spindles, this will help later during installation. Then remove the plastic cover that shields the drive assembly. On the drivers side wiper you will see a odd shaped flat plate with a formed up tab. From the factory this tab was bent at 90 degrees, you will likely find it bent. With a screw driver and pliers it can be bent back to its correct form.