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03-07-2025, 11:00 PM
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#1 |
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Registered User
Join Date: Jul 2014
Location: Washington
Posts: 547
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Washer Motor Wiring Help?
I’d like to put an aftermarket washer fluid motor in my 1969 c10. Previous owner has an aftermarket reservoir in the engine bay but no pump.
How would i wire an aftermarket pump to the push button switch on the dash? Thank You |
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03-07-2025, 11:13 PM
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#2 |
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Registered User
Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,373
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Re: Washer Motor Wiring Help?
There should be two wires going to the electric solenoid that engages the existing mechanical pump mounted on the motor. Typically yellow and dark blue.
Locate those two wires, unplug them from the old washer pump, and splice or plug some extension wires into them. Run those extension wires out to your new pump. The new pump is likely polarity sensitive. The existing yellow wire is +12V and the existing dark blue wire is a switched ground (gets grounded to complete the circuit when you push the washer button). |
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03-08-2025, 06:21 PM
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#3 |
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Senior Member
 
Join Date: Jul 2000
Location: North Texas
Posts: 3,663
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Re: Washer Motor Wiring Help?
This may help. Found it on the American Autowire schematic for their Classic Update harness:
WIPER SWITCH Black Low speed ground Light Blue High speed ground Dark Blue Washer pump ground They don't show yellow, but as Ray said, it's 12 volts, either ignition or accessory. Details here:https://api.americanautowire.com/sho...Design%202.pdf
__________________
Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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03-08-2025, 06:42 PM
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#4 | |
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Registered User
Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,373
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Re: Washer Motor Wiring Help?
Quote:
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03-08-2025, 06:48 PM
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#5 | |
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Senior Member
Join Date: Jul 2000
Location: North Texas
Posts: 3,663
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Re: Washer Motor Wiring Help?
Quote:
__________________
Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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03-08-2025, 08:13 PM
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#6 | |
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Registered User
Join Date: Dec 2017
Location: Elkhart, Texas
Posts: 1,879
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Re: Washer Motor Wiring Help?
Quote:
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03-09-2025, 03:20 AM
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#7 |
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Registered User
Join Date: Jul 2014
Location: Washington
Posts: 547
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Re: Washer Motor Wiring Help?
Thanks Guys. Appreciate The Help
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