Wires going to fan

[Slowhawk]

There are 3 wires.
One is the ground.
The other 2,is one low speed and one high speed?Which is which?

I'm in the process of hooking up a dual fan and I'm going to hotwire them with some relays..

Thanks.

 

[turbo nasty]

Assuming you have the original untouched fan and stuff.
Ok...the Fan shroud will have a caeramic resistor on it, the resistor is what actually makes the fan run on low speed. I do not remember the colors but wipe em off and bet ya the solid blk is GND. get a meter and verify, so the other wire left is high speed.
Easy way around all this.
Verify the ground wire and hook it to the GND/- on the new fan. The other 2 wires tie them together and hook them to the POS/hot/+ wire(s) on the aftermarket fan.
Now, no resistor and without it there is less amps on the system anyways. And no matter what position the fan relay low(originally the resistor or high without resist)the fan runs.

 

[Slowhawk]

Thanks,Now if I hook 1 fan on the low speed circuit and 1 on the high,I will be OK?
Does the computer control low and high?

I have no problem wiring them since I'm actually a control electrician.Just want to make sure the computer controls Low/High.

 

[10SV6]

The computer controls the low speed. The high speed is a switch in the intake.

 

[Slowhawk]

Cool,thanks

 

[turbo nasty]

Run both ..not 1 at a time. It will not over cool, just simply the fan will shutoff when programmed to via the chip.

 

[87grandnat]

can you run a dual fan without having to wire up more relays, can you also run it to stay on high all the time (this is the way that i have the stock fan fixed)

 

[turbo nasty]

the car already has the relay there use the original. I use the ramchargers fan and the stock relay and it works awesome