ELECTRIC COOLING FAN RELAY AND TEMPERATURE SWITCH WIRING

I believe my fans were installed with 30 running to the fam and 87 to the battery … would this cause issues. My voltage drops dramatically when my fans come on.

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Do you have a video on how to hook up to the a/c compressor?

I have a quick question . What if I used a 5 pin relay ? Do I just not use the middle pin ? Is it okay to depin it ?

Thank you so much for the video I my self knowing what I know just grounded that loop to the frame. I understand now that's wrong.
QUESTION: My sensor has 2 prongs, not just the one.. DO I HOOK IT UP THE SAME WAY? Leaving 1 prong/tab empty? I'd it for 2 fans? PLEASE HELP ME OUT. Z THANK YOU.
I had to get a shallow sensor because of where I put it on the side of my block, the long sensor bottomed out.
thanks

Can I run the switch ignition wire to the black wire if idk how to find or run the wire to the switch ignition ?

I have my condenser pressure switch in pin 86 so that my ac fan turns on when it reaches a certain pressure (with AC on only). Could I splice my coolant switch wire with the pressure switch wire to pin 86 so that it activates through coolant temp as well (with AC off)?

Could I run all the wires from the fans to the 1 relay

Thank you for the explanation of how to wire a fan relay I am going to try on my mustang tomorrow

I did this exact set up, two relays. I had my ac turn on while i waited for the temp to come up for the fans to kick on, and then the ac compressor pressure valve blew up freon. What theck happened?

Is the coolant switch the same as temp sensor ? Great video btw. Thanks.

The relay clicks repeatedly when fan comes on (at temp to do so) is that normal?

I am working on a 2000 dodge ram 1500 with a v6 but i dont have any port on the heads nor on the intake so i am installing the switch on the block,do you think it will work like that? Thank you for your answer

Very cool, i just ran a 30 Amp fused wire to power wire on fan from battery and 210-195 coolant switch, with a 195 engine thermostat to ground on the fan. On my 5.0 Ford Ranger.

Thanks for the information. Do you have a recommendation for location of the temperature switch on a 86 Toyota pickup with a 22RE ?

Thank you for the detailed explanation. I would imagine that Alloy Works also makes the Cooling & Radiator Specialist brand from Amazon because the kit looks exactly like the wiring kit you have.

Fans are not coming on unless I ground it to the frame.

Quick question can you run the temperature switch off one of the radiator hoses if so how can that be done?

Thank you great video!!!

Will the holley terminator x efi control my electric fan?

I've used these and they work for a few months and then develop a mind of their own. They don't turn on when needed and sometimes turn on without the key on

Does this switched ign. source for pin 85 work as an A/C override for when your compressor is on?

can you splice the black wire into your existing coolant temp. sensor

This was a much needed video! I was having the same issue with that random ground dab. Thanks!

so if i wire them both to turn on at the same time , does that mean it pulls 120amps at start up ?

your thermostat comment didnt make sense. help me out becuase im confused and trying to understand. if the temp reaches 185 and it kicks the fan on and won't kick the fans off until 165, wouldn't i wan't a 185* thermostat so the fans kick on when the thermostat opens, at the same time? you said i should get a 165* thermostat in the video.

i like your videos ! you have alot of confidence in what you do ! and a good life going! you can tell ! i need to have more of that. Thank you for all you do! You're a Kool Kat.. great videos !

you have 85 to key ignition? and 86 to ground? which is right? the company has 86 to key ignition and 85 to ground? whats right???

Thank you for your help

Why would my ground wire be getting Extreme hot?

My car doesn’t have an electric clutch where I can connect to the ignition. Where else can I connect it?

WHAT IF/ you have a 195 degree thermostat ? what temperature switch would you use?

Most radiators are designed for 40mph wind current & only cool the temperature about 20*F depending on outside temps.

Your thermostat is designed to "Regulate" flow to help the engine remain a constant temperature. Be it 160-170-180-190 and....
>>>> "Where you place" the Thermo switch depends on the on/off temp required. I'm putting mine in the Bottom hose, so I will need a thermal switch that comes on @ around 180 and off @ 160*F assuming my RAD is only cooling a common 20*F engine should remain around normal 180-200*F max.
A switch Placed "In the head", the switch should actually come on @ 190-200*F and Off @180 or what ever temp your thermostat is again maintaining an engine temp of 180*F.
Aluminum block engines are designed to run a little bit cooler than cast iron blocks - Look up Manufacture Temperature for your application and use what they recommend.
All fans should come on and stay on when A/C units are turned on.

I’ve got a LS set up with dual fan,psi wiring harness, an their dual fan relay set up I have everything hooked up right the fans seem to come on when they supposed to but they want cut off, it will cool my radiator down we’re I can put my hand on it, not hot, but the fans want cut on, any suggestions

Terminal 85 is a black wire....not white

Having issues with my fans constantly running even with the coolant cold. Switch is installed into lower intake on a 1990 mustang. Any ideas? Is the switch stuck closed?

Thank you.

Can I use black wire on my temp sensor I already have. Comes w yellow and black wires on it already?

Thanks. Your video kept me from pulling my hair out.

I wonder if I hook the signal from my ecu to the signal wire on the relay to control the fans would work for my Ls swap instead of using the temp switch

I got 3 relays , its not fun to figure out either, because of air conditioning high speed and two fans , it runs low speed and high speed both fans , weirdest hardest way ive ever seen one done , but I aint changing it ..if I did , it would have two sensors instead of three relays and still do the same thing , guess it dont make a difference , what do you want to fail ? A sensor or a relay ..its gonna happen eventually no matter what you do ..

I have the exact same relay and color of wires the only thing is that I have a pigtail on my fan that has a blue and a black wire connected to it. In your video you only have a blue wire coming from the fan, do you know why mine has blue and black and how I should wire those? Thanks.

Thanks mate, I found your video very helpful. Keep up the great work. 👍👍👍

Can I run that black wire that goes to coolant switch directly to my harness fan 1 and 2 it should work the same right ? My pcm is programmed to run dual fans . Eliminating that switch should work same way off the temp set by pcm and thermostat right or am I wrong?

Great video! I have looked for 4 days for all of this information! Thank you a thousand times!

If I’m running a 180 degree thermostat in my sbc 350, could I just not use the supplied temp switch and just buy a 195 degree ON and 185 degree OFF switch?

Big thanks Sir 👍

they make these hose adapters that go into the upper radiator hose, and they hold these coolant temp switches

why cant you just connect the fans to the existing fan connectors and utilize the existing relays and switch ? seems a lot easier that way