1998 ford expedition eddie bauer edition winshield wiper sometimes works and sometimes it doesnt... i would like to know where the location of the windshield motor

If you take off the wiper themself and then remove the trim under them the wiper motor is on the driver side you may have to replace the motor and if there is a go yard around you there you can get one at half the cost you can also take one off a F-150 the same kind of truck one has a bed the other one has seats also try junkyarddog.com to help you find one.