Official Electric Fan wiring thread!

[328ijunkie]

BK/Blue is high speed +12 and brn is ground yes.

And as for the temp switch, yes assuming you have a fan switch between them.

[lolcantturn]

Ah i see what i did. fail.

But yes thats the plug.

Okay sweet, the blue/black I assume is positive and brown of course is ground?


As for the temp switch side, I just splice the black and brown, and wire the green into it correct?

[328ijunkie]

Ah i see what i did. fail.

But yes thats the plug.

[lolcantturn]

Is this the Stock fan wiring? It's three wires, brown, blue black, and black green..not sure what to do cause it's not what OP said

[nando]

yeah, most decent aftermarket fans move more air and use less power. my flexalite S-blade fan uses 15 amps and moves 2000cfm. It's also far quieter.

[328ijunkie]

The stock fan will pull damn near 30 amps on high speed, esp when its old and dying :D

[e30s50dan]

wired up also...Got a fan from Jegs,doesnt pull alot of current,so was able to use stock wiring and fuses....knock on wood...been a year now

[giantkeeper]

If yours comes on when keyed then you have some other issues, your snowflake button on? You need to test and make sure the relays arent firing on "on" position

LOL - you know, I never even bothered to check to be honest. :roll:

*Edit - No I don't have it on....I figured I wouldn't have.

[NigelStu]

Got it.

328ijunkie's directions for a single fan (pusher or puller)

herlsy's schematic for a dual fan system (for those who want/need it)

[328ijunkie]

Ok, so I am good up to three (I combined the speed wires w/o resistor) - I'll have to verify my connections at the temp switch (which is 61318361787 Radiator/Auxiliary Fan Switch; 80/88C; Radiator Mounted with 3 Pin Connection).

Btw your PN does not appear to pull anything up.

Mine comes on when keyed, even though I set it up to run as above.

Thanks for posting this!

If yours comes on when keyed then you have some other issues, your snowflake button on? You need to test and make sure the relays arent firing on "on" position

And i edited my original post with the picture from pelican parts

This might help some people that want to add a puller fan utilizing the stock circuit:

Unless youre talking about running dual fans (which isnt necessary in my optionin unless youre running a POS m42 radiator) the stock pusher is already relayed

herlsy - couple of clarification questions.

1 - Is your schematic adding a second (puller) fan to the system, replacing the mechanical fan and keeping the current A/C pusher fan working as normal? Or is this to replace both mechanical and A/C pusher fans with one (puller) fan?

2 - what is in the box between the 12v and the relay? Isn't readable on my computer screen, even when I zoom in. I'm guessing 30 amp fuse?

its basically to either rewire the stock pusher, replace the stock pusher with another fan or put a puller in place of the pusher. This isnt to run dual fans. Dual fans arent necessary if youre using a real radiator.

[herlsy]

Sorry yeah i should re-edit it. It looked good in ms paint then photobucket screwed it.

The schematic is adding a puller fan, single speed, keeping the stock AUX fan. Either wired from the High Speed or Normal Speed relay circuits.

The box between 12v and the relay is the fuse. I put 30amp, but this could be decreased depending on how much power the fan draws.

[NigelStu]

herlsy - couple of clarification questions.

1 - Is your schematic adding a second (puller) fan to the system, replacing the mechanical fan and keeping the current A/C pusher fan working as normal? Or is this to replace both mechanical and A/C pusher fans with one (puller) fan?

2 - what is in the box between the 12v and the relay? Isn't readable on my computer screen, even when I zoom in. I'm guessing 30 amp fuse?

[nando]

thank you, this always drove me nuts. it's so simple, and people make it really complicated.

[herlsy]

This might help some people that want to add a puller fan utilizing the stock circuit:

[NigelStu]

Perhaps this should be also moved (or copied?) to the FAQ section???

afterall, it does apply to more than just swaps.