well i have already tried to do the electric fan thermostat and the fan did not work, nothing worked but when i jumped the fan to the battery the fan worked, thats the only way i could get the fan to turn on. electric thermostat failed, toggle switch failed. what else can i do?Yea I agree with gearhead. It will work but not for long without melting something. I've had fans melt and blow cuz of too much amperage and it will happen to you. You need to either route it to a temp gauge like a thermostat would be in a house or find an alternate option but having to flick a switch when ur temp goes up and then just flip it again when it cools down is a pain pal. Let us know what u decide
this is what i was using. BTW i had it hooked up to the stock fan in a 2.3 that sounds like a good idea i would like to try that could you post a diagram of what its supposed to look like? im one of those people that need the dumbed down version lolTry running the 12 vt to the thermostat relay wire this way ur getting the twelve volts and th thermostat just acts like the toggle switch for you. What kind of electric thermostat is it?
yes the fan did not work i even turned on my a/c which should turn it on and it does not i have another IRCM that i pulled from a junkyard mustang as well as another fan (fan works i jumped it) i just dont wanna swap in the ircm if it does not work too. i dont know how to test them or have the toolsWhy are you doing this? If your fan isn't coming on, you probably need a new relay. You can replace the whole IRCM, or if you want you can open it up and replace just the relay. You will be a happier person if your fan works as intended.
ill try that, i have soo many wires coming out of my electric thermostatOk so I did some research for ya and it seems other people had this problem. This is a setup needed to make it work properly.
1. Go to napa or auto store and get constant power relay
2. Wire it directly to 12v
3. Get a universal relay and wire it to electronic thermostat and that will tell it to turn on and off
4. Tie in grounds and good to go
12v--------cpr-------ur--stat----fan----
Ground-------
I also know you can tie it in to fuse box on acc. But eventually it will overheat
A lot of people who have the problem ur having is because your alt is too small or not drawing enough amps. And they had to upgrade alternator.
Now when they went to 8plug went to a IRCM module mounted on passenger side inner fender. Something like this.
http://jr.rustecat.com/articles/ircm/assem.html
AC, radiator fan, and fuel pump in it. Now the ect tells this module what temp to turn it on for fan. Also AC should turn module on. AC will not work correctly without radiator fan. You could run codes of it see if code for ect comes up. If so check into that. More than likely the IRCM has gone bad. Please wire direct to fan motor [without module direct power] and make sure it is good before putting in new IRCM. A bad motor pulls too many amps and maybe what destroyed the 1st one and sure don't want to do that to the new module. Wiring diagram for the 92 so you see how it is wired. Module wiring diagram on page2.
http://www.rothfam.com/svo/reference/92-93Mustang.pdf
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