Horn Wiring Pictures

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390xlt
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Horn Wiring Pictures

Post by 390xlt »

Does anyone have some good photographs of the stock horn wiring under the hood (relay, horn, solenoid, etc.)? I understand the wiring diagrams, but there has been some creativity exercised on that area of my wiring through the years, so wire colors and routing and such are not always as easy to match up to the diagrams as one might hope.
I'm not in a huge hurry, but I'd like to get the horn working as part of the steering column project I'm currently in the middle of.
1970 F100 Ranger XLT 390 3 speed
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sargentrs
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Re: Horn Wiring Pictures

Post by sargentrs »

Best example I can think of. http://www.fordification.com/images/fai ... 9607hi.jpg
From the low mileage '71 in the photo galleries on the main site. Page 2 of the write up.
http://www.fordification.com/fairburyF100.htm
Randy
1970 F100 Sport Custom Limited LWB, 302cid, 3 on the tree. NO A/C, NO P/S, NO P/B. Currently in 1000 pcs while rebuilding. Project thread: http://www.fordification.com/forum/view ... 22&t=59995 Plan: 351w, C4, LSD, pwr front disc, p/s, a/c, bucket seats, new interior and paint.
1987 F-150 XLT Lariat, 5.0/C6 auto.
390xlt
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Re: Horn Wiring Pictures

Post by 390xlt »

Thanks, that's super helpful! I don't know how I missed it when I was searching yesterday.
I'd love to see more if anyone has some handy
1970 F100 Ranger XLT 390 3 speed
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Re: Horn Wiring Pictures

Post by 390FE1972 »

Maybe these can help a little, the first one is the 1968 horn wiring diagram (with colors in lower right corner), the 2nd thread has a picture of the alternator harness that has some of the hook ups for the voltage regulator etc.

http://www.fordification.com/tech/wirin ... ircuit.jpg
http://www.fordification.com/forum/view ... =8&t=82359

EDIT: here is a youtube from Autorestomod that talks about horns on an F100, it shows some pictures of the wiring: https://youtube.com/watch?v=QCybUPR4iog


Hope these help! I'll keep looking :thup:
1972 F250 Sports Custom 390 FE C6 2WD Dana 60 4:10 gears
390xlt
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Re: Horn Wiring Pictures

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These are all great. Thanks!
Looking at all these pictures and diagrams also reminds me that I should probably do something about that fuseable link
1970 F100 Ranger XLT 390 3 speed
390xlt
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Re: Horn Wiring Pictures

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I thought my wiring was pretty much stock with the exception of a few splices here and there, but what I have doesn't quite match up with any pictures or diagrams I can find. With some educated guesses and a multimeter, I did manage to get the horn working (well, electricity is going to the right places, anyhow) and wired up more cleanly than it was, but I'm still stumped on a couple of things:
1. I seem to be missing circuit 4. It's supposed to be a white wire with a black stripe running from the alternator to the voltage regulator.
2. I have no idea what the red wire in the picture is for. It's hot when the ignition is on; that's all I know.
How important are either or both of these? Circuit 4 hasn't been there since I've owned the truck and I've never had any electrical problems, but if it's important, I'll do something about it. I've just got that red wire taped up for now.
wires.jpg
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1970 F100 Ranger XLT 390 3 speed
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Re: Horn Wiring Pictures

Post by 390FE1972 »

You may have seen all these before, but just in case here they are. You can click on the image to enlarge them. This thread has a link to alternator wiring pictures, and another diagram: http://www.fordification.com/forum/view ... =8&t=53439

http://www.fordification.com/tech/wirin ... master.jpg (1970 wiring chart)
http://www.fordification.com/tech/wirin ... -chart.gif (wire gauges & colors)
http://www.fordification.com/tech/wirin ... _quick.jpg (1972 quick reference)
http://www.fordification.com/tech/wiring/68-09.jpg (1968 charging etc. system)

Regards :thup:
1972 F250 Sports Custom 390 FE C6 2WD Dana 60 4:10 gears
390xlt
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Re: Horn Wiring Pictures

Post by 390xlt »

Thanks, I had never seen the picture in that thread you posted.
The others I've got saved and even printed out a couple of copies.
Unfortunately, none of that matches up to what I've got going on under the hood. Running a wire from the alternator to the regulator wouldn't be too much trouble, but it's been working fine since I've had the truck, so it's going to be a pretty low priority unless someone tells me it's a ticking timebomb for some reason. I'll leave that red one alone for now and maybe use it for an accessory or something someday.
1970 F100 Ranger XLT 390 3 speed
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