I've got stock turn signals on my '53 F100, but can't figure out the way to wire it. I think I understand the theory now and Earl's diagram is a big help but does not match my wire colors. The colors coming out of the turn signal switch are:

Yellow
Red
White
Blue
and two Greens

My service manuals don't even mention a turn signal and the wiring diagrams in there are useless. Can anybody point me to a diagram that matches my truck or otherwise help?

-Scott

 

Scott,
Do you have a volt-ohm meter? If not buy a cheapie at Sears, Harbor Freight, etc. Set the turn signal lever to the center position. Next step, check the continuity beteen each of your two greens and the other four colors...one green should have continuity to one of the other colored wires. This will be the normally closed contact position, the one that passes through the brake light current directly without flashing. Move the turn signal handle up and see which green wire breaks continuity...now find the other color that now HAS continuity with that green wire. This is the set of wires that match your left turn circuit. Do the same for the right side and you should now be able to match your siring color codes to the chart supplied in Earls. Good luck...

 

Thanks, I'll try that. then both greens are power feeds, one from the brake light switch and one from the flasher?

-Scott

 

Here's another good turn signal writeup (albeit Chevy)...
http://www.stovebolt.com/techtips/turn_signal.htm

 

That one has a great logical way to ohm out the signals. Thanks.
-Scott

 

Here is a copy (in 2 parts) of the 55 wiring diagram I used to do my 55 turn signals. It should apply to 53's also. I was lost without it and picked it up at a swap meet with a new OEM switch. Hope this helps.

Fred

 

Thanks for the diagrams, but from what I can gather they don't look like by '53. Ohming out the wires seems to be working - when I get a chance to check it by finsihing the wiring, I'll post the color codes.

-Scott

 

Fred, I'm in the process of wiring my 55 F350 turn signal. I'm trying to marry my stock turn signal with the Painless wiring harness; which I'm finding a bit challenging. However, I tried to download your images but nothing came up. Can you repost them, Please!

 

Fred, I'm in the process of wiring my 55 F350 turn signal. I'm trying to marry my stock turn signal with the Painless wiring harness; which I'm finding a bit challenging. However, I tried to download your images but nothing came up. Can you repost them, Please! Also, instead of the starter button in the dash I'm putting a 4-way flasher (that I found on Americanwire) unit in the dash. My plan is just to tap into the turn signal wires and route to the 4-way flasher, any other ideas are surely welcome.

 

I posted these diagrams 10 years ago and they are not in my Shutterfly account now.
I will re scan them tomorrow and post.


Fred

 

Thanks Fred! But I was just at the Mid-Fifty site and found what I needed and as I'm typing this my printer is printing their instructions.

Thanks!

 

Thanks for the reply.
Saved me from searching my files.
If you need the diagram let me know.