They do because if they go up and down, the water would just stay on the window.
If the windshield wipers work when pushing the lever down but not when they are turned on all the time, the problem could be in the wiper motor relay switch. There are two different relay switches for the windshield wipers, so that if the one fails a person can still clear the windshield manually.
Assuming you are standing on the drivers side, lightly pull the windshield wiper towards you until you hear a click and then lightly pushit back down.
What type of vehicle?
Turn the wipers off, pull the wiper arm off, and replace it in the correct down position.
You must remove the arm of the wiper and move it down
The linkage for the wipers could have slipped. If the linkage is not aligned right, then the wipers will not stop at the right spot.
Remove the bottom bolt on each side of the windshield (near the hinge) and make sure to take the wipers off. It folds right down, really easy, Remove the bottom bolt on each side of the windshield (near the hinge) and make sure to take the wipers off. It folds right down, really easy,
I would start with testing the "park" switch inside the cover of the windshield wiper motor.
I have found that if you put rainex on the windshield everytime you change your oil you will not have that problem.
Sometimes there is a racket system and the wipers have slipped. Used to happen all the time in my 1998 Buick. Always had to take them apart and put them back together.
The motor shaft and the wipers are'nt connected properly(the timing is off), just disconnect the wipers from the motor. Turn your car on and cycle the motor and it should be back at the home position. Pull your wipers back down and reconnect and all should be fine.Thats if you put in a new wipermotor. If not, maybe the wiper switch is bad.
The windshield wipers are not automatic... the lever that controls the wipers have three positions and you will have to pull the lever down to the off position. The position below off is for mist. If you pull the lever to that position and let it go, the lever will go back to the off position.