The windshield wash pump on my new-to-me '76 F250 is disconnected electronically. The wire leads from the pump are about 5" each. I cannot see where they WERE connected. I ohm tested the pump and show the pump to be good. 1) How do identify the correct wires in the harness that goes by the pump? 2) Any recommendations on the most effective way to splice in once I've identified the correct wires?

Keep it in the shallow end for me guys. I'm not very mechanical at all....but I am willing to make mistakes and learn.

Thanks.

Mac

 

Here's what my truck looks like




The wires are part of the headlight harness.

The best way to splice is to watch some yoUtube videos on soldering wires together, get the right tools and use heatshrink tube to cover.

 

Here you go.

 

Thank you!! Gonna give it a shot.

Mac

 

Finally got around to using y'all's recommendations last night. After jumping the washer pump and finding it to be viable I peeled back the electrical tape upstream and found a couple cut wires. Used my multimeter to identify the correct pump wire. So easy. Then I screwed up. Used force vs. finesse and broke the washer reservoir when I tried to pull the pump out! Dammit.

Figuring I now needed a new reservoir/pump anyway, I decided to play around see if I could get it at least spit a little fluid onto the windshield. No dice. Pulled the hoses off and blew into each one. Long story a little shorter, it seems that whoever painted this beast did NOT tape over the sprayer nozzles when they did so, leaving them plugged. The PO must have thought the pump was bad and ripped into it and then just said to heck with it.

Anyway, I feel empowered, thanks to you guys. The diagrams and the picture were super helpful.

One general question; are the Ford wiring schematics typically accurate color-wise? The diagram says BLK/WHT for the washer wire, but mine is more of a GRN/Slate color. Just curious.

And thanks again.

Mac

 

This diagram shows GRN/BLK....? Yes the other shows WHT/BLK?

 

Thanks Rich.

Guess when you buy one of these you're never really sure of the vintage of the non-obvious pieces & parts.

Mac

 

It's always a little mystery tour when you start trying to fix something that the PO gave up on.

Rich is very helpful with diagrams, but bookmark this link. http://www.fordification.net/tech/wiring.htm You'll need it again....

Also, it does indeed show gr/bk and bk for your truck

 

If it helps i just wired a washer pump on a 1974 f350 that the wiring was messed up and the colors of the wires are green/black.

 

Ok fellas. It's done. Ordered and installed a windshield washer kit from LMC for $19.95. Easy peasy.

Come to find out, the PO had failed to tape over the washer nozzles when he painted it. Thus, they were plugged. Used the specialty paper clip tool to unclog them, installed the new reservoir and tubing, and soldered (successfully, I might add) in the new pump. Voila. It works.

Stand back, I'm on a roll.

Thanks for the help.

Mac J

 

Nice work! Thanks for the update. It's good to hear how things turn out.

 

EOAZ-17664-A (replaced C9AZ-17664-A) .. Windshield Washer Pump (Motorcraft WG-30) / Available from Ford.

1971/96 F100/350 & Bronco / 1971/90 Econoline / 1983/92 Ranger / 1984/90 Bronco II / 1986/90 Aerostar / 1997/98 F250 (over 8,500 lbs) & F350 // Misc: 1969/90's Passenger Cars.