2 speed wiper motor
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More Turbo
Joined: Sep 2019
Posts: 656
Likes: 125
From: Northern Texas
2 speed wiper motor
My '66 F100 is in a shop and they are having a time getting the wiper motor to park.
They can get high speed, low speed but the motor won't park.
I can't get to the truck to see if the wiper motor is OEM so I don't know.
Sitting here an hour away from the truck I'm of limited use.
But if someone can tell me what wires are on the switch and what they do might help me to help them.
Some diagrams I've found show 4 wires to the switch. A 12V in to the switch and 3 to the motor.
I'm assuming one is low speed, one is high speed and another is off/park.
Is that correct?
TIA
They can get high speed, low speed but the motor won't park.
I can't get to the truck to see if the wiper motor is OEM so I don't know.
Sitting here an hour away from the truck I'm of limited use.
But if someone can tell me what wires are on the switch and what they do might help me to help them.
Some diagrams I've found show 4 wires to the switch. A 12V in to the switch and 3 to the motor.
I'm assuming one is low speed, one is high speed and another is off/park.
Is that correct?
TIA
Lead Gopher
Joined: Aug 2012
Posts: 10,056
Likes: 1,611
From: Seattle
The two-speed wiper motor in low speed uses the grounded brush through the ring terminal on the right and the white wire brush on the left. In high speed it uses the grounded brush and the blue wire brush at the top. When set to off the motor will run at low speed until the park switch lower contacts open. The black wire (ground) and red wire (hot) provide power to the parking switch keeping it closed until the motor is turned off. Then once the parking lever rotates around to make contact with the switch - opening it - then it stops. There is also a small adjustment screw next to the parking switch that is to the right of the connector of the red wire in this picture.
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