Ok heres what I got : A wire running off the bat. back to the switch one comming back off the switch. Then spliced it in to the hot on the fans. It's a dual fan set up and I have it grounded.The fans work but I keep blowing these cheap flip switches well not cheap (3.95) Is it because I'm pulling straight off the bat? What would be a better set up so I dont keep having to buy a switch every 15 times I turn the fans on?

 

You are just running waaay to much juice through that switch (IMO). Is this for stock fans, or aftermarket????

I assume aftermarket, because it makes no sense to me that you would wanna wire your stock fans to the battery.

First of all there should be directions of what you need to use and the specs on switches, fuses ETC.

I would run a 20am-30amp inline fuse between the battery and the switch. From there I would run a 20amp switch/30amp switch. (I would try 20amp first, and if that blows go to 30). But, inline fuse is a must.
20amps should be plenty, however I would look into trying to wire the fans without directly going to the battery. (RELAY comes to mind)

If you want post some specs of the fans, and the wiring diagram if you got it. If not I can look into a way of wiring it without having it drectly connected to the battery.

 

A relay would be the right way to do it.

 

Yea they are stock TPI fans and It has a in-line fuse 20 amp never blowed yet.Thats what has got me Looks like it would blow it. And I thought of the relay but I've had trouble out ot the org fan I replaced relay,both sensors but I can take a hot wire to the (power on the relay green wire I think) and it will work . I just got tired of trying to find the problem so I went manual. But keemthem comming at this point I'll try anything

 

You already have the correct way to do it right

 

if you are using your stock fans why not just grab the fan control relay located on the firewall drivers side and splice the green wire with white stripe to ground? yo ground that wire and your primary fan is on. want a switch? Use a vampire tap to add a wire from that one into the cab to your switch then from the switch to a ground. flip switch on your fan is on, flip switch off fan is reset to factory spec. that would be the safest way to do it and since your still running factory setup it is also the easiest.

 

I thought you were doing an aftermarket setup, cuz you really don't need to go through that much trouble and hacking to make your fans work right.

T- into that green with white stripe wire and put a switch on that wire, and ground the other end of the switch.
Kinda like this.

 

https://www.thirdgen.org/forums/cool...trol-dual.html

go there

 

No It came with one fan then it quit working so I started replacing. First was relay,sensor on passanger side then the one on drivers side checked the fan motor. Still car would overheat so I had a buddy who had a set off a IROC and he gave them to me. I checked them out and they worked so with the org set up not working I just got tired of wasting my money on the sensors just for them to go out in a couple of weeks again.So I hooked them up like I said and it still dont work good. I would like to hook them up with a relay but I'm not giving $50 for the plug in for the relay.

 

I wanted to add my input, so here it is.

 

 

Thanks all good info but I only have one relay the car came org with one fan. I haven't ran a second relay with it thats why I ran it off the batt.So I would have power to them. I think I'm going to hook up just one like you all said off the green wire. Since I plan on doing a LT1 swap and can dig in and see whats wrong do you think it will work? Thanks again

 

ok boss let me try tis a different way....

go to your favorite autoparts store and get a 30 amp relay. ask at the counter. tell them you are going to use it to power your fans from the battery. get your favorite switch. get some wire 10G at a min for the fan power adn ground, adn 14 MIN for the switch. I use 12G for most basic things or 10 and possibly 8 depending onthe expected load..... and a set of spade connectors for the wire you chose. And a inline fuse. Mind you this is all for ONE fan, double it for the other fan....

Now for the wiring...

On the relay you have a ground plug, 12V pos in, 12V pos out, and switched. you need to run 10G from batt to a fuse and to 12V in. and then 10G from 12 out to the fan pos. Ground fan with 10G as well. tap into the fuse box for a wire that is switched on with the key and run that to one side of the switch you bought, and from the other side of the switch to the SWITCHED terminal of the relay. Now what will happen is you flip your switch and it will close the relay sending full 12V from the batt to the fan. The switch sees only a little current flow and will not fry. hell you can use the same switch to trip the second relay to power your other fan as well.

 

what i did was get two 30 relays form Auto Zone for fog lights. They are only about $4 if you don't get them they only relays you can get are about $12. and just wire them in and mount them to the radator support. one relay for each fan wiring them in is no problem you have
- one wire to ground
-one wire for power, bat.
-one wire out to the fans
-one wire to jump the relay, form a switch in the car, power form fuse box

its that easy and cheap