A friend has a 99 f250 super duty xlt. Passenger window will go down with either switch but wont go up with either switch. He has a new switch for the passenger side and a new motor. Regulator is fine. New switch and motor...same result. Any ideas?
6 Answers
No. With the window attached to the old motor it moved up and down fine using your hands. With the new motor you couldn't move it with your hands.
I would use a multi-meter to see if the motor is getting power when you try to roll it up.
OK thanks. Will be a couple days. He is out of town now.
Would that be the problem with a new motor and new passenger side switch but it won't go up with either the passenger or drivers switch?
I would have to look at a wiring diagram but clearly switches, motors, wiring and relays are all suspect.
