question about the sticky " Wiring an electric fan with a relay " - Team Camaro Tech
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post #1 of 4 (permalink) Old Oct 30th, 14, 09:45 AM Thread Starter
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Join Date: Mar 2002
Location: San Diego
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question about the sticky " Wiring an electric fan with a relay "

I wasnt sure if i should have posted this in the post itself but there are a few different suggestions on how to wire it up. Any suggestions on which post has the best way of wiring up a fan?

I have a taurus fan (will only use one speed), 75 amp relay and a two prong temperature switch (on at 185) that slides in the radiator fins.

This is how I wired it but didnt work:
http://www.the12volt.com/installbay/...fan_relay2.jpg
I didnt use a switch


I may try this way again since i dont know for certain the radiator temp. The head temp was reaching 200 and I got uncomfortable so I stopped. I know there will be a difference between head and radiator/water temp but I know once head temp gets above 210 I pop off my overflow lid and make a mess.

Suggestions please....

thanks

1968, 383, 700R4, Convertible
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post #2 of 4 (permalink) Old Oct 30th, 14, 09:53 AM
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Re: question about the sticky " Wiring an electric fan with a relay "

Have you jumpered the temperature switch to see if your circuit actually works?

"For those that will fight for it...FREEDOM ...has a flavor the protected shall never know."
Semper Fi! L/Cpl Edwin L. "Tim" Craft, B Co 3rd AT's, Khe Sanh Combat Base, February, 1968
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post #3 of 4 (permalink) Old Oct 30th, 14, 12:11 PM Thread Starter
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Re: question about the sticky " Wiring an electric fan with a relay "

I havent yet but will do that when i get home. I had to take yesterday off from under the hood but really want to wrap this up and get it back on the road. Do you think the way I wired it should work?

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post #4 of 4 (permalink) Old Oct 30th, 14, 02:13 PM
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Re: question about the sticky " Wiring an electric fan with a relay "

It should work if it's wired like the schematic. I don't think it's a real good idea to run a 2-speed fan on high speed only, the inrush current is quite high, and low speed is usually sufficient for all but the hottest situations. If you want a fairly inexpensive 2-speed alternative, look for a Volvo fan control relay.

"For those that will fight for it...FREEDOM ...has a flavor the protected shall never know."
Semper Fi! L/Cpl Edwin L. "Tim" Craft, B Co 3rd AT's, Khe Sanh Combat Base, February, 1968
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