electric fan help..wiring

[240sx_in_209]

hey guys well i was up trying to wire my electric fans.. well i got up the radiator and i was planing on hooking it up to run off the fuel pump but when i got it connected it was not blowing as strong than when i connect it to the battery. my question is there another way to hook it up to only come on when the car is on but connect it to something with more amps.. i tried all the fuse in the fuse box already

[E7-S14]

my fan is wired so when ever i start my car the fan is on.its been like that for a while..and ive had no problems..

[240sx_in_209]

yeah thats how im trying to have it but when i wired it into my fuel pump it was not blowing as hard.. what should i do?

[S13Teddy]

When you run it to the battery, the voltage is fourteen,I'm just trying to help, and not to be mean.Your fuel pump probably pushes two less,Therefore you will not encounter as much success.

[janda240sx]

1.Get a relay.2.Power the relay off of whatever you want.3.Run the power for the fan straight from the batt. through the relay adn to the fan4. SEARCH

[240sx_in_209]

1.Get a relay.2.Power the relay off of whatever you want.3.Run the power for the fan straight from the batt. through the relay adn to the fan4. SEARCH

yes i have searched but im asking is there any other fuse that i can run..... i tried some of there fuses and they work the same as if u were to hook them up to the battery but they stay on all the time. is there any other fuse i can hook it up too

[janda240sx]

Just power the realy off the fuel pump fuse. Run the power for the fan straight off the battery. I tried to find a diagram but I can't.

You could always run it off your windshield wipers.

[240sx_in_209]

ok thank u.. i was miss understanding what the relay was but thanks u guys!

[Nismo24zero]

mine is wired to the battery and i turn them on manually via toggle switch. it works for me

[KA720]

never a good idea to just run it through a toggle switch, always take the time and use a relay setup, I ran mine off a toggle switch for a few months until I caught my car on fire and took the extra fifteen minutes and wired up a relay, but if you're using a toggle switch at least have it switching the ground wire instead of having three foot of power wire running to the dash like yours truely

[240sx_in_209]

yeah im not trying to do the switch... just dont really want to deal with turning it on and off....... and if by any chance i forget to turn it off there goes my battery

[gmac708]

I just put a Derale adjustable fan thermostat kit p/n 16759 ($39 at summit). It will turn on the fan only when adjusted temp is reached AND the ignition is on, and/or can be wired to come on when the A/C is running. It has a relay and fuse, so it can be wired directly to battery or battery bus. It also has output for dual fan as well.Check out the info at their web site.

[janda240sx]

Mines run through a relay which I control with a toggle switch.got 2 Hayden fans 1 14in. and 1 10in. I have the 14 on the relay and switch for main cooling and the 10 just wired to the oem wires for the AC.

[KA720]

any parts store sells a thermo setup comes with a relay and wiring instructions and a probe that goes between the radiator fins, the whole kit is usually about $25, I use it and I've never had a problem

[maj Andres]

I just put a Derale adjustable fan thermostat kit p/n 16759 ($39 at summit). It will turn on the fan only when adjusted temp is reached AND the ignition is on, and/or can be wired to come on when the A/C is running. It has a relay and fuse, so it can be wired directly to battery or battery bus. It also has output for dual fan as well.Check out the info at their web site.

Can you wire this kit up so that the second fan turns on when the AC turns on? And so that only one fan is on high or low, depending on temperature? am I asking too much from this kit?

[mrgreeneyes]

When you run it to the battery, the voltage is fourteen,I'm just trying to help, and not to be mean.Your fuel pump probably pushes two less,Therefore you will not encounter as much success.

nice rhymes. youre kinda wrong tho, champ.

battery when car is off should be 12-13v, 14+ when car is running (alt charging)

however, in oldass cars like ours, the fuel pump wiring is obsolete.

and to the OP who wanted to just tap into fuel pump wiring, seriously, dont try electrical ANYTHING.

if you searched and it said you needed a relay, then USE a relay properly

[240sx_in_209]

yes i know i did wire up to relay but when i was searching i read that alot of people just ran it like that off the fuel pump

[maj Andres]

Off topic.... if you use one of those thermo switches that they have at autozone with the probe, can you just splice the wires from the probe into the coolant temp sensor so it will be more accurate?

[trulyphly710]

Ha! sorry to bring this back up but if you're going to do it, get the FSM and look up the skematics and write it up correctly.. YOu can always wire it where the relays are located and jump it. I did it on my integra.. will do it to my 240sx once i get it running again. HOoking it up to your batter just looks soo tacky when you pop open the hood