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Windshield Wiper Wiring

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Old Mar 27, 2016 | 08:42 PM
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Windshield Wiper Wiring

The windshield wipers on my 1978 F-250 went on the fritz all of a sudden. I am not sure if it is the wiring or the motor. Has anyone in the forum had to repair their wipers? What is the proper procedure? Do I check wiring first, or motor? Also, is the wiper mechanism connected to the fuse panel? Should I try to replace fuses first? Any help is greatly appreciated. Would like to avoid having to pay $500 at the repair shop....thanks!!!!
 
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Old Mar 27, 2016 | 09:54 PM
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From: O-O-O-Oreilly's
Fuses are always a good place to start. Busted fuse, no electrical pixies, no wipers. Did they just quit working, or are they intermittent? You really only need the one wire from the switch to run the wipers. I believe the wire is orange.
 
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Old Mar 27, 2016 | 10:59 PM
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Here you go.
 
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Old Mar 28, 2016 | 06:49 AM
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Thanks for sending this. It is a big help. One question for you. Looking at that chart, it looks like the Windshield Wiper is on the #2 fuse.... Is that correct? It is hard because the chart says W/S Wiper Illumination. Not sure if the #2 fuse is for illumination of the actual wiper itself. Let me know if you have any insight on that...thanks again.
 
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Old Mar 28, 2016 | 10:46 AM
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Believe you will find #11 controls the washer and #2 is basically for the dash lights.
 
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Old Mar 28, 2016 | 06:47 PM
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77-79 F250,
Not sure where u find this stuff but u rock I'm gutting my interior this summer this is really going to help
Thank you,
 
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Old Mar 28, 2016 | 11:00 PM
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It is all right here, thanks to fellow FTE members over the years.

https://www.ford-trucks.com/forums/1...then-some.html
 
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Old Mar 29, 2016 | 10:20 AM
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mine stopped working a while back. It was the switch that was bad. The washer motor was the only thing which had power. I ended up making my own switch.
 
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Old Mar 29, 2016 | 12:40 PM
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Originally Posted by mountain dewd
Fuses are always a good place to start. Busted fuse, no electrical pixies, no wipers. Did they just quit working, or are they intermittent? You really only need the one wire from the switch to run the wipers. I believe the wire is orange.
You are correct. Hot wire for wipers is orange. My wipers didn't work at all. Started digging around and found the orange wire had been cut and stripped back an inch. Found a factory connector (yellow plug) that had 12v with key on and it works.
 
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Old Mar 29, 2016 | 05:58 PM
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From: O-O-O-Oreilly's
Originally Posted by 79F150400M
You are correct. Hot wire for wipers is orange. My wipers didn't work at all. Started digging around and found the orange wire had been cut and stripped back an inch. Found a factory connector (yellow plug) that had 12v with key on and it works.
NICE! Wipers are a good thing to have in WA.
 
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