BROTHERS Dual Electric Fan Installation

[@isaacparras7772]

This is EXACTLY what I needed to see so I can swap to electric fans in my 77 K5 Thanks!

[@ernestomendoza463]

Hi. Why are you swapping to electrical fan?

[@isaacparras7772]

@@ernestomendoza463 Mainly to clean up under the hood

[@jimmiranda7181]

Seems simple enough. Another great video Dave.

[@allachance1292]

Great video! Great instructions too. Sure wish you made a kit for 1988-98 Chevy trucks!

[@Ahelm12]

You’re the man, Dave!! Thank you for the video

[@BROTHERSTruckPartsTV]

Thanks for watching!

[@cbrSpeedster1]

Hey Dave, I got mine all hooked up and the Thermostat leaks between the thermostat and half in fitting. I tightened it up and still leaks.. Tightened it some more and stripped the nut.

[@BROTHERSTruckPartsTV]

Did you use and thread sealant or tape? Sounds like you need a new sender either way. Call the shop so we can get you fixed up.

[@JeffLarkin]

Do you happen to also have a video for exchanging the actual radiator? Thanks!

[@BROTHERSTruckPartsTV]

No we don't, but we'll add it to our list! Thanks for the suggestion.

[@ar90242]

Hey guys great video is there a link to the harness?

[@BROTHERSTruckPartsTV]

The harness is included with the fan kit which is linked in the video description.

[@davidbeach7187]

wish I had found you some weeks ago, before buying fans with no instructions or even an wiring parts.

[@BROTHERSTruckPartsTV]

We wish you would have too! Good luck with your project!

[@theojenkins8240]

I added this to my 83 c10 and the relay last about a month and couldn't find one locally to replace it I took the relay apart and it seem to be melted around the contacts to the point that I cant read the diagram where else can I go to get the correct relay cause it says 14v and not 12 v

[@BROTHERSTruckPartsTV]

14v is just the relay's max voltage. You'll be fine with a 12v relay too, just make sure it can handle a 40-50 amp draw.

[@pgarciapg3pg]

Awesome work i was wondering if u could make a how to video on how to install the universal brackets for bucket seats so i can get an idea to install them on my 87 c10

[@BROTHERSTruckPartsTV]

We'll work on it.

[@jimmysapien9961]

Call Old Air Products . Ft. Worth Texas

[@jadenschroeder339]

How do you wire it up so each fan turns on at different temps

[@davidmckinley5343]

Can the orange wire go to the post that goes to the starter?

[@BROTHERSTruckPartsTV]

It could, but we don't recommend it. You really should run that wire through a relay to the positive side of the battery. Because of the high amperage draw of electric fans during spin-up, any direct routing is not a great idea.

[@davidmckinley5343]

@@BROTHERSTruckPartsTV where would be a good place to hook up to the ignition? I have a 74 Barracuda.

[@davidmckinley5343]

@@BROTHERSTruckPartsTV i have the yellow wire going to the battery. the diagram shows it goes there. The orange wire is supposed to go to an ignition source so the fans shut off when the car shuts off. I just don't know where to connect it. No videos that I've watched show where to actually connect it. This is in a 74 Barracuda.

[@BROTHERSTruckPartsTV]

@@davidmckinley5343 Connect it directly to the ignition "ON" side of switch itself.

[@schmurda]

What temperature does this fan turn on?

[@BROTHERSTruckPartsTV]

The fan tuns on at 185° and turns off once the temp drops to 165°.

[@TimeToBeKind]

Dave, I just got myself a 77 Corvette, it runs, but the radiator was probably used as a bumper in the titanic. Anyway, here in Arizona, everyone has overheating issues, must be from the cool and freezing 117 degrees temperatures in the summers. Can you tell me what you have for it, as far as a setup and price? I went to auto mechanic trade school in 1982-1983, and got my certificate, but then, I married a city slicker and having dirty nails and smell like grease, caused me to retire, before I even got a job. Now that I don’t give a rats ass what she thinks, I bought this car to restore, like a hobby. Any tips is greatly appreciated. Thanks

[@BROTHERSTruckPartsTV]

Tony, we don;t have anything for your Corvette, we only specialize in GM Trucks. We would suggest a call or email to the guys at Champion Radiator and see what they have to offer.

[@TimeToBeKind]

@@BROTHERSTruckPartsTV … that’s great to know, thank you. I will be needing a radiator for my 1993 Silverado K1500 5.7 Tbi 350. I think the truck will be ready for pick up at the body shop next month, I’ll get the radiator from you. Thank you and have a great day. I mean the 4 row with the electric fans. I’m thinking 4 row because I’m in 117 degrees summers, 5 months. Or perhaps the 3 is sufficient. I’ll let you help me on that decision.

[@BROTHERSTruckPartsTV]

@@TimeToBeKind Bigger is better!

[@robertclymer6948]

@@BROTHERSTruckPartsTV Thats what she said! lol

[@AtonicBlaze]

Was wondering where the temp sensor to activate the fans when grounded can be found? Also, what temp range is recommended for that sensor...185 on?

[@BROTHERSTruckPartsTV]

Temp range is up to you, but we recommend 180 on. The temp sensor can be mounted in various places on the heads and intake manifold. On our truck it is mounted to the thermostat housing itself.

[@ray6976]

No problem grounding both fans to the same bolt?

[@miguelrocha3522]

Do e fans free up more horsepower, like in the case of newer f150 5.4?

[@BROTHERSTruckPartsTV]

100%. As a matter of fact, the very first thing we noticed after installing the fans on this truck was an incredible increase in available power and the engines ability to rev up quicker and in high RPM's easier. It was a real eye opener for us!

[@mrmidnight32]

What is that grounding sending unit called? I need one for my set up. I only have it hard wired to switches.

[@BROTHERSTruckPartsTV]

It's a relay. I makes it so you don't have to draw all the amperage through your switches/activators.

[@billyferguson5881]

Great video. Sir I looked on your site but I couldn't find the double fans for an 86 Chevy truck with a 350 could you please send me a link

[@BROTHERSTruckPartsTV]

The photo on our website shows a single fan unit, but this kit DOES INCLUDE TWO FANS - Here's a link: www.brotherstrucks.com/73-87-ALUMINUM-SHROUD-WITH-FANS-V8/productinfo/AFS87C2/

[@pgarciapg3pg]

Thank u

[@shonepolk9112]

I’m building a 79 gmc c15 with my son. It came with the 250 in line 6 but we are installing a nice mild 350. Truck didn’t have factory air, but I’m purchasing a vintage air kit. So my question is, do you sell the push pull fan kits or are they all pull? Also do you guys have the kits where one fan is engine cooling and the other ties into the a/c compressor power to active the secondary fan?

[@BROTHERSTruckPartsTV]

Our fans are all pull, although it stands to reason if you wire them +/- and -/+ you could get them to run in reverse and create a push. You have many options when wiring the "igniter" for the fans, so you can easily wire a circuit that ignites the fans on temp, and another that ignites them when the AC powers up.

[@shonepolk9112]

BROTHERS Truck Parts yes sir I thought about that after I typed it (brain fart) lol. I guess my main concern is with the cfm flow of the fans. Will one of yours be enough to keep coolant temp regulated if one is dedicated to a/c is my question. And I’m sure it is, just want verification before I go on brother trucks and order. Thanks!

[@BROTHERSTruckPartsTV]

@@shonepolk9112 Yes, 100%!

[@michaelheathington9546]

Would this work with a thermostat housing that has a ported vacuum switch like my 84 square body?

[@BROTHERSTruckPartsTV]

That motor probably has a spot on the intake you could use instead of the housing. The fans will just run more often.

[@ryanhinojosa659]

I wired everything correctly and the fans will not come on even when I ground them out could it be the relay? Everything is brand new

[@jimmysapien9961]

@@ryanhinojosa659 sounds Looks like It’s not Hooked up to A 12 volt power source 🙃

[@havedaucke]

Do the fans come with the fuse and relay kit?

[@BROTHERSTruckPartsTV]

Yes they do.

[@havedaucke]

Awesome! Thanks

[@jimmysapien9961]

Of Coors they Do . 30- 40 Amp fuse

[@TheBinfordMan]

Does your stock alternator handle the two fans? You never touched on that, so just curious.

[@BROTHERSTruckPartsTV]

Absolutely, the fans run directly off the battery using a relay, so there is no additional draw on the alternator when the fans kick on.

[@mplante7352]

This is complete crap, your alternator will have to supply the voltage and amperage to run the additional load of e-fans. A battery doesn't make power it stores it. Obviously another company that doesn't understand the basics of automotive electricity .

[@peterking785]

@@mplante7352 and how the hell do you think the alternator works ? As it name implies it alternates power for various loads, example is the electric fans those fans will use 80% of what the fuse rating is and yes most stock alternators are rated for 175 amps or more depending on who made it but the fans dont draw anything from the alternator if directly connected to the battery. Alternator also goes by generator

[@mplante7352]

@@peterking785 a squarebody truck of said vintage did not come with alternators anywhere near 175 amps, plus at idle the alternator will be putting out less amps. A squarebody in those days a factory alternator may have been 80 amps or so, and less at idle, so sitting in traffic at idle all that relay is doing is closing the circuit to the battery to supply the fan that may draw 20,30,40+ amps. At that point your electrical load of that fan plus whatever else is on in that truck will put a heavy draw on the electrical system (alternator) if stock alternator is around 50 to 80 amps, even at idle so whatever the alternator is at its point where it's the bottleneck, and those alternators had thin charge cables going to them, so more amps less voltage will heat up and eventually melt, and the loads being supplied by the alternator will get less voltage and demand more amps then will blow fuses. So in most cases an upgraded alternator is required due to the added load at idle and at speed. I have done an Efan swap so I am talking by experience.

[@peterking785]

@@mplante7352 well his video didn't help no one I'm thinking about doing an electric fan swap on a 97 lincoln towncar, if you want or could give me some suggestions that would be great.

[@fernandotorres295]

Can u send me a link to purchase radiator n fans??

[@BROTHERSTruckPartsTV]

Need year, make and model of the truck, as well as engine size. Or you can go over to our website www.brotherstrucks.com and check it all out there.

[@Aksankhan]

Great informative video👍 Greetings from Pakistan 🇵🇰

[@BROTHERSTruckPartsTV]

Thank you!

[@TheHomy70]

Is this correct: 30-to battery...87 to fan....86 to 12V keyed source....and 85 to toggle switch inside the car? I want to have no thermo switch and operate the fan manually when I want it to go on. Note this is for a pusher fan on a classic car.

[@KrukasT4]

I got the 3 row kit. Do I have to order new (rubber) radiator supports? Could you give me the correct part# pls. Best regards from the Netherlands.

[@BROTHERSTruckPartsTV]

You might have to do some slight modification, but this is the one we use: www.brotherstrucks.com/1967-72-CHEVY_GMC-TRUCK-RADIATOR-RETAINER-PAD-HD/productinfo/RRP6772/

[@TheNachoDaddy]

Great video, but is that a KZbin Certified patch on your sleeve? LOL

[@BROTHERSTruckPartsTV]

First person to notice that! Good eye!

[@KrukasT4]

What are the threads on the radiator for the transmission lines? I will be installing -6 Lines. Thank you and best regards again from the Netherlands.

[@BROTHERSTruckPartsTV]

Yes, the radiator is plumbed for transmission cooler lines.

[@KrukasT4]

@@BROTHERSTruckPartsTV I know that. But what is the threadsize?

[@BROTHERSTruckPartsTV]

@@KrukasT4 1/2" NPT

[@mjl6425]

I have a Mishimoto fan controller with a ground switching circuit. The ground, ignition, and constant is all hooked up but I’m not sure where to connect this red ground switching wire. Ive never heard of a ground that’s red. The fan is not turning on but when I use the green jumper wire and connect to the positive on the battery I could hear it switching on and off in the module. But the fans still do not turn on. Does this red ground switching wire go to the black or the red wire on the fan itself?

[@BROTHERSTruckPartsTV]

Sorry, we're not familiar with that fan controller you are using. However, it sounds from your explanation like you should be hooking that Red wire to a temperature controlled ground sensor. On our system that wire is Grey.

[@mjl6425]

OK thanks I’ll try it.

[@mjl6425]

Yeah the red wire does go to the negative ground. Which is why I was confused usually ground is black wire.

[@BROTHERSTruckPartsTV]

@@mjl6425 Excellent, glad we could help!

[@highspeednoblesgarage3152]

Awesome video. Did you use one relay for both fans? I'm looking to wire my fans up on my 70 and was wondering if I should buy two relays. Please advise?

[@BROTHERSTruckPartsTV]

One single relay for both fans.

[@highspeednoblesgarage3152]

@@BROTHERSTruckPartsTV Thank you.

[@03dvldog]

Why did you only use 1 relay instead of 2 relays for the dual fans