It would depend on the year, make and model vehicle.
About $300.
The worm gear that runs it is stripped, Replace the motor.
what is the year of this van 2002 or 1992?
There is no switch. If the wipers park in the middle or at the top of the winshield you need to replace the motor. the fault is in the logic
Pay a mechanic to do it for u
You will need to take out the whole motor to replace it. It is usually best to get a mechanic to take care of it.
Its under the winshield wiper assembly
If you have some vehicle repair knowledge you can replace them yourself. If not, it is best to have a mechanic look at it.
My mechanic took about an hour.
how can you change a winshield motor for a 1992 Lincoln continental
In the windshield wiper motor.
The wiper motor bracket has a tab that can bend causing the wipers to park vertical. Either attempt to bend the tab back, or replace the wiper motor bracket itself.