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post #1 of 189 Old 06-21-2004, 11:44 PM Thread Starter
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Electric Fan

Theres is a ton of differnt ways to install an electric fan. There is no perfect fan but there are many that work more than hard enough to keep the engine cool. The Taurus fan is very popular as well as a few aftermarket fans which through many failing one me I am now biased to one company. All the fans can be mounted in a few differnt ways and there is no wrong method as long as it holds the fan as close as possible the radiator. This is a very easy mod and can take a few minutes to a few hours depending on your mechanical skill but the result is worth whatever time you put into it.

To remove the clutch fan remove the shroud. Get either the porper tool from a auto parts store. They usually have a free loaner program to get the fan off. Or get a big ass wrench to fit the center nut on the fan and Unbolt it. Some times it takes a few whacks from a hammer on the wrench to pursuade the nut to come off. Now Install the fan with whatever method you would like. Once done for optimum cooling reinstall the shroud

To install the fan there are a variety of ways. You can get some angled steel make some brackets upper and lower and screw them to the upeer and lower radiator support,. and then bolt the fan to that. You can go the Nylon straps route through the radiator like I did. You can make a bracket that will just brace the fan at the bottom and hold it snug at the top with a spring load of the sort. There is no wrong way as long as its secure.

To wire just buy the 20 dollar kit. It has I think 6 wires. they are all color coded.

1. Main power for Relay
2. Main ground for Relay
3. A/C or sometimes called over ride switch wire that you tap into the A/C wire so when its on the fans on
4. Thermostat input wire, they all have some type of thermo switch
5. Thermostat Output wire, There should be 2 wires for the thermo one in and on out
6. Primary fan power +
7. Some have a secondary fan +

Real simple to wire up no big deal. Once you wire up the relay system. Install the fan run the Primary fan power wire from the relay to the fans + wire. Run the ground for the fan to the frame.

If its a set temp style system you donr. Turn on the A/C once the fan turns off to make sure you wired that correctly. If its adjustable you run the vehicle No A/c till the gauge on the dash is at the temp you want it to turn on then you adjust the thermostat switch the fan kicks on.

You will notice the engine is quieter, more responsive, little more tourque, and slightly better milage.


Last edited by GoofyGuy; 06-21-2004 at 11:46 PM.
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post #2 of 189 Old 03-13-2007, 12:53 PM
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Re: Electric Fan

Picture Tutorial



Use 10mm socket, 3 bolts on top and 2 bolts on EACH side of the fan shroud

Now you have the top removed

Bottom is easy to take off, slide it off



Dont forget the overflow hose thats attach to bottom shroud clip





Bottom fan Shroud

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Last edited by What?; 03-13-2007 at 06:07 PM.
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post #3 of 189 Old 10-05-2007, 10:13 PM
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Re: Electric Fan

Now with upper and bottom fan shroud remove
You need 3/8" rachet set on "Lefty Loosey"


Pull it as far you can and stuff rough rag/towel in this location


Now let the belt tightens as u let the rachet back to orignal position to put pressure on rag on belt and pulley to make it harder for pulley to slip

As you see, i insert crescent wrench in there, now use a hammer or anything than you can hit end of wrench to loosen clutch fan, now after loosening it, it should look like this



Do procedure again to loosen the belt and remove the rag/towel

Voila, clutch fan is removed

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Last edited by What?; 10-05-2007 at 10:19 PM.
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post #4 of 189 Old 10-05-2007, 10:15 PM
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Re: Electric Fan

Mounting the efan works however you want it, there are alot of ways to hold the efan with any kind of mount you come up with, mine is temporarily holding up by zip ties in where ac condensor used to be(mounting in front of radiator)

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post #5 of 189 Old 11-17-2007, 06:41 PM
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Re: Electric Fan

MORE E-fan Mods link!

http://www.fordmuscle.com/archives/2...cfan/index.php
http://www.s10forum.com/forum/f105/d...8/#post5287951
http://www.s-seriesforum.com/how-to-efan.html

http://www.s10forum.com/forum/f107/h...-review-59490/

Those who uses stereo system and wanting to do efan mod, follow this thread, it will help out your electrical system
http://www.s10forum.com/forum/f202/b...0/#post4590136

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Last edited by What?; 09-29-2008 at 11:49 PM.
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post #6 of 189 Old 04-21-2008, 05:14 AM
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Re: Electric Fan

Those with efan installed

POST ONLY EFAN/WIRING KIT INSTALLED

Keep it pic only and state what efan is it, where you get it from, keep this very simple so can be used for variety of ways how its installed, kits, mounts, brands

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post #7 of 189 Old 04-22-2008, 02:55 PM
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Re: Electric Fan

just installed my zirgo e-fan and t-stat switch very easy install only about 1 1/2 hours working slowly brake every 15min ...lol...i hope the pic works of the wiring diagram i ran the power wire to the fuse block there where a few blank spots because i don't have power windows/lock/ac ext.

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Last edited by don; 04-22-2008 at 02:59 PM.
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post #8 of 189 Old 05-08-2008, 11:27 PM
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Re: Electric Fan

i put contour fans in today its dark now soo ill get pics tomorrow one quick question though. i got a 180* stat what do i set my fans at

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post #9 of 189 Old 06-13-2008, 03:15 AM
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Re: Electric Fan

most factory fans cut off at a certain speed, you guys doing similar at all? it looks by the wiring diagrams your leaving on one fan all the time and the other comes on when too hot or ac is on?
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post #10 of 189 Old 06-15-2008, 02:09 AM
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Re: Electric Fan

anyway to make it turn off at speeds? im afraid ill be burning up this motor running 1 all the time! and with the ac on 99% of the time need something to cut off the ground for both relays at speed?
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post #11 of 189 Old 07-15-2008, 09:06 PM
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Re: Electric Fan

I did this modification this past weekend. I used a fan from a 90 3.8L Taurus. I only had to cut out a small rectangle from the lower S-10 shroud and trim the Taurus shroud. I also used a complete relay/adjustable temp kit. Total cost was about $90. $50 for the relay, $30 for the fan, $10 for wires/ends etc.

I only hooked up the low speed fan. It seems to be holding up well with the A/C on in traffic in the Carolina heat.

I've definitely picked up one, maybe 2 mpg.

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post #12 of 189 Old 07-26-2008, 04:27 AM
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Re: Electric Fan

something i learned that helped me out a shit load was instead on useing a rag or towel to stop the pulleys i used a strap wrench. (my stock fan as a pain to break free) i found using the strap wrench i had more control and was safer. i'll be posting pic's as soon as i have some free time during daylight hours
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post #13 of 189 Old 08-10-2008, 11:03 PM
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Re: Electric Fan


Cavalier E-fan, I shoulda went bigger. If I stay outta the traffic in the twin cites it's fine

Cut the shroud, put the top back on. Notched it to fit my fan

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post #14 of 189 Old 08-11-2008, 08:57 AM
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Re: Electric Fan

^The reason that fan didn't work is because it's only pulling air through about 60% of the radiator. That's why the taurus fan modification is so popular, its shroud covers 95%+ of the radiator and fits well with little modification. Also, it might not be pulling very many cfm's.

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post #15 of 189 Old 08-11-2008, 12:21 PM
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Re: Electric Fan

has anyone done a fan that blows air into the radiator? i saw a fan on a caddy at the junkyard that did that. are there any advantages/disadvantages to having a fan blow air through or have air suck in?

i know the a/c condenser is the farthest forward and it might not have a flat surface to sit on if the fan was blowing air into the engine bay. on the other hand, it would be a cleaner look, since nothing would be hanging in back of the radiator into the engine bay, so it would look like there is no fan.

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post #16 of 189 Old 08-11-2008, 02:24 PM
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Re: Electric Fan

That'd be a pusher fan, as opposed to a puller. I'm thinking about doing it to have a cleaner look.
I've read people argue that a pusher is not as efficent.


Can someone answer this. Can you switch the wires to make a fan spin the other way? Is this hard on the fan or something? Thanks.

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post #17 of 189 Old 08-11-2008, 09:52 PM
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Re: Electric Fan

you can swittch the wires to make it push, but it may not be efficent since most fan blades are curved

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post #18 of 189 Old 08-12-2008, 03:13 AM
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Re: Electric Fan

Oh, I see. Shitty.

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post #19 of 189 Old 08-13-2008, 09:57 AM
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Re: Electric Fan

i saw at the junkyard, some cadillacs are pushers from factory. so since its a caddy, i'm assuming they curved the blades the right way.

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post #20 of 189 Old 08-14-2008, 03:54 PM
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Re: Electric Fan

I've read to use the 97 Taurus fan from a 3.8L...only prob is 97 Taurus came with 3.0 or 3.4....would the 95 fan work?

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post #21 of 189 Old 08-22-2008, 12:03 AM
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Re: Electric Fan

FYI, it seems like a lot of people have issues getting the fan removed with the simple rag trick. I also tried jamming a screwdriver against the bolts, but mine wa really tight. I just busted my knuckles repeatedly.

Auto Zone has a rental tool ($20 deposit) 27018 - Called a Ford 4.9 Fan Clutch Wrench Set. 5 minutes later (including opening the hood) and one knuckle bust later and I had the fan removed. These wrenches are long. One grabs the shaft, the other jams between the nuts on the pulley. It was easily worth the bicycle trip to Auto Zone on the other side of town.

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post #22 of 189 Old 08-22-2008, 10:01 AM
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Re: Electric Fan

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Originally Posted by johnmyster View Post
FYI, it seems like a lot of people have issues getting the fan removed with the simple rag trick. I also tried jamming a screwdriver against the bolts, but mine wa really tight. I just busted my knuckles repeatedly.

Auto Zone has a rental tool ($20 deposit) 27018 - Called a Ford 4.9 Fan Clutch Wrench Set. 5 minutes later (including opening the hood) and one knuckle bust later and I had the fan removed. These wrenches are long. One grabs the shaft, the other jams between the nuts on the pulley. It was easily worth the bicycle trip to Auto Zone on the other side of town.
I used the same tool, but my deposit was $60. They must be more trusting in your town!

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post #23 of 189 Old 02-17-2009, 07:15 AM
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Re: Electric Fan

ive got a system in my truck thats 1200 peak, 330 RMS. I plan on putting an upgraded pulley set on there. If i do that and an Efan mod, would i still need to upgrade the stock wiring? So far its given me no problems. Always at over 14 volts, even if the system is blasting super loud.
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post #24 of 189 Old 02-17-2009, 09:52 PM
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Re: Electric Fan

no...you dont have too, but it wouldnt hurt...search "big three" on here and do that


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post #25 of 189 Old 02-24-2009, 04:41 PM
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Re: Electric Fan

what kinda belt do you get once you remove the fan clutch pully???
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post #26 of 189 Old 02-24-2009, 04:43 PM
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Re: Electric Fan

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what kinda belt do you get once you remove the fan clutch pully???
I've always understood that you don't remove the pulley, just the fan. The same belt will run there, but there's no drag from the fan.

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post #27 of 189 Old 02-24-2009, 04:49 PM
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Re: Electric Fan

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what kinda belt do you get once you remove the fan clutch pully???

You just take the fan blade assembly off. You don't take off the belt driven part.

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post #28 of 189 Old 02-25-2009, 09:46 AM
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Re: Electric Fan

yea that logical thanks. you guys are great here
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post #29 of 189 Old 06-25-2009, 11:41 PM
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Re: Electric Fan

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Cavalier E-fan, I shoulda went bigger. If I stay outta the traffic in the twin cites it's fine


N/m Im getting to do a set up like that, i got a fan out of a Camero

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post #30 of 189 Old 07-28-2009, 12:44 AM
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Re: Electric Fan

I'm trying to get a definitive list put together of everything I will need to do this properly. Everything I've read so far has confused the hell out of me.

So for one speed I would need:
  • Fan
  • Inline fuse (size?)
  • Relay kit w/ temp sensor switch
The wiring is battery to inline fuse, fuse to relay, relay to temp switch and fan, temp switch to switched power source(where?) and fan/temp switch both grounded.

Is it best to tap into the A/C and have two speed? If so what else is needed and how would the wiring change (if it's correct)?
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post #31 of 189 Old 09-01-2009, 09:47 AM
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Re: Electric Fan

what if i can't get the bolt for the fan loose? it keeps spinning and a rag makes it spin more

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post #32 of 189 Old 09-01-2009, 10:02 AM
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Re: Electric Fan

get a fan wrench from auto zone or any other parts store....it helps


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post #33 of 189 Old 09-01-2009, 03:53 PM
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Re: Electric Fan

My rag isn't new and I stuffed it enough, although you can get a pry bar in between bolts(that goes onto clutch fan to pulley) in between then whack the hammer to loosen it up, do it carefully. That's my alternate way that works everytime.

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post #34 of 189 Old 11-12-2009, 06:42 PM
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Re: Electric Fan

Quote:
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My rag isn't new and I stuffed it enough, although you can get a pry bar in between bolts(that goes onto clutch fan to pulley) in between then whack the hammer to loosen it up, do it carefully. That's my alternate way that works everytime.
yeah this is what it took to get mine off today.

also have to change the alternator and i would like to punch the guy in the face that put that damn bolt in backwards that is hard to get to on the side. think it'll be going back on with a nut on the back and bolt through the front
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post #35 of 189 Old 01-26-2010, 12:24 PM
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Re: Electric Fan

Taurus efan, it was from a 96 or so. It wasn't from the 3.8 as people said to find, i think it was a 3.0 but the dimensions were right. Fan controller is from autozone, had built in relay and hookup for a/c and is adjustable. Hooked up on only one speed, still draws a ton of amps, but eh.



Upgraded to a thicker radiator (1" thick core) at the same time, drilled holes in plastic of taurus shroud and bolted/zip tied to radiator



I used a 4.3 shroud since I got the wrong one from the yard, so i had to cut around for the filler cap. I also drilled holes (BE CAREFUL) in the shroud to hold the a/c lines



Did the same thing on the bottom side, drilled small holes to let the plastic nubs into the taurus shroud for the overflow tank connection. Careful once again, don't have pics ATM

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post #36 of 189 Old 04-24-2010, 12:12 AM
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Re: Electric Fan

can i take the fan out of a sho 3.4 would it pull the right amount of air
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post #37 of 189 Old 05-05-2010, 12:00 AM
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Re: Electric Fan

This mod has a newb all confused...could someone please explain what this mod does and how exactly this is to be done?

From what I understand you replace the old fan with a new one and somehow you get better performance? and how does this tie into the AC? the fan only runs when the AC is blowing?

thanks guys
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post #38 of 189 Old 05-05-2010, 12:30 AM
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Re: Electric Fan

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Originally Posted by NoVadair View Post
This mod has a newb all confused...could someone please explain what this mod does and how exactly this is to be done?

From what I understand you replace the old fan with a new one and somehow you get better performance? and how does this tie into the AC? the fan only runs when the AC is blowing?

thanks guys
What it does is remove your stock mechanical fan and install an electric one. Cleans up the engine bay (some extra room), and frees up a little power.

The easiest installation is putting the fan on a manual toggle switch inside the cab. The best way is to use a temperature sensor and relay so the fan comes on automatically when the engine reaches a set temperature.

Yes, the AC tie-in is that the fan will automatically override and turn on when the A/C is on regardless of engine temperature.



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post #39 of 189 Old 05-10-2010, 11:39 PM
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Re: Electric Fan

thanks for clearing that up, it is starting too make a little bit more sense.

what is the purpose in tying it into your ac? what if you decide not to run your ac? will things start to over heat
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post #40 of 189 Old 05-10-2010, 11:59 PM
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Re: Electric Fan

I tried to wire up my ac comp and when I went to try it out it would not let the comp kick on. I clipped the wire and the comp kicks on. Any ideas on where I went wrong? I am using a probe style hayden adj thermostat. Relay and a fan out of a 96 olds 3.1 v-6.

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post #41 of 189 Old 05-19-2010, 01:55 PM
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Re: Electric Fan

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Originally Posted by NoVadair View Post
thanks for clearing that up, it is starting too make a little bit more sense.

what is the purpose in tying it into your ac? what if you decide not to run your ac? will things start to over heat
The thing tying it into your A/C is so when your a/c is on, your fan is on, regardless of engine temp. You don't want to run the a/c standing in place with no air moving across it...i hear you can burn/blow something...not sure why but just don't do it. That's why you make the fan turn on with the a/c on so you have air moving across the condenser at all times.

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post #42 of 189 Old 07-29-2010, 06:47 PM
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Re: Electric Fan

So, if I was to do this, using this kit.



Where would the gold thermometer go in the engine?

From what I am understanding, all I would need is the e-fan from a early taurus 3.8L, the wiring pictured, and remove my clutch fan...is that correct?
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post #43 of 189 Old 07-29-2010, 07:26 PM
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Re: Electric Fan

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So, if I was to do this, using this kit.



Where would the gold thermometer go in the engine?

From what I am understanding, all I would need is the e-fan from a early taurus 3.8L, the wiring pictured, and remove my clutch fan...is that correct?
well it'd go where the temp sensor is currently so if you're thinking a tee fitting forget it ,been there done that it pulls temp sensor out of the coolant flow and will read 50 degrees cooler. i'd suggest the probe type from autozone and if you'er going to use a/c you need 2 relays.

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post #44 of 189 Old 07-29-2010, 07:47 PM
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Re: Electric Fan

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well it'd go where the temp sensor is currently so if you're thinking a tee fitting forget it ,been there done that it pulls temp sensor out of the coolant flow and will read 50 degrees cooler. i'd suggest the probe type from autozone and if you'er going to use a/c you need 2 relays.
Ok, keeping that in mind, what would be the wiring diagram then? I will be using A/C for sure . So that setup would replace the stock temp sensor and I also need a probe temperature sensor? I guess i am looking for an exact breakdown of what all I need to buy and how to wire it. I can handle the labor portion of it.

I guess i am getting confused amidst all the threads on e-fans.
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post #45 of 189 Old 08-19-2010, 05:39 AM
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Re: Electric Fan

is this stud the 12v auxilary thats switched?
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post #46 of 189 Old 08-19-2010, 10:51 AM
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Re: Electric Fan

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is this stud the 12v auxilary thats switched?

That post is hot all the time.(12v) That is where I picked up the power feed for the fan. I put a 30 Amp fuse in there and it has worked fine. I keep a 50 in the truck for just in case. I run the low speed primarily but have run the high with no problems.
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post #47 of 189 Old 08-19-2010, 08:04 PM
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Re: Electric Fan

you can use the wiper circuit feed on key sourced wire under wiper motor, just test which one.

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post #48 of 189 Old 08-20-2010, 12:10 AM
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Re: Electric Fan

My truck is an 03 2.2 5 spd reg cab. I have the Taurus fan. Using only low speed. It has been in for about 2 years. After months of searching and 1 purchase I finally found a fan switch that would work for my truck. I installed a 180 stat and the truck runs, according to my temp gauge, around 185 on the open high way. The original fan switch
(Pic # 1) I had in the truck came on at 212 and off at 198. To hot for me when sitting at a light. I installed a manual switch (Pic # 2) to trigger the relay when I was sitting for long periods to prevent the engine from getting to hot. I don’t use it much now with the new switch installed. I found the fan switch I have now after going through countless catalogs and hard to find spec pages for switches.
 
The one I found is listed at OPEN at 97 c and CLOSES at 82 c. That converts to 197.6 F and 188.6 F. My temp gauge (Pic # 3) has a 100 then a long line (155) and a 210. The first line is 168.75. The middle is 182.5. The third is 196.25. The temp at cruise sits just above the 182 line. According to my dash gauge it comes on between the 196 mark and the 210. It goes off a little below the 196 line. The pictures I have enclosed show the way I have the switch mounted (Pic # 4) in the upper radiator hose. I took a copper fitting (Pic # 5) and tapped it out to a 21 x 1.5 thread.
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Last edited by nstoolman1; 08-20-2010 at 12:15 AM.
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post #49 of 189 Old 08-20-2010, 12:12 AM
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Re: Electric Fan

Part 2
Then cut a hole in the pipe (Pic # 6) and brazed the copper fitting to the pipe and installed it. I personally did not like the idea of putting a sensor in the radiator or having the adjustable one. I figure a once install and forget was good enough. I am in the process of repairing the A/C so when that is done I will wire another relay in for the high side of the fan.
 
The part I found is an Airtex/Wells 1S4391(SW 552). I paid $10.27 S+H included. I ordered it from Rock Auto and it was shipped in 2 days. I looked again today and the price went up to and a delay. I may have got the only one in stock so be ready for the wait.
The price is right so be patient. Fortunately the old one had the same threads. When I got it I unscrewed the old and in with the new. Works great. Some other pics include my fuse box (Pic # 7) where I hooked my power (6 gage) for the fan to the spare fused post. As you can see I am running a 30-amp fuse. I also modified the feed (Pic # 8) from the 4 gage wire to a 2 gage 3/8 post. I partially pulled the radiator to feed the wire where the original went. Hope this helps some one who is thinking about a simple way to run their fans.
 
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post #50 of 189 Old 09-24-2010, 11:38 PM
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Re: Electric Fan

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just installed my zirgo e-fan and t-stat switch very easy install only about 1 1/2 hours working slowly brake every 15min ...lol...i hope the pic works of the wiring diagram i ran the power wire to the fuse block there where a few blank spots because i don't have power windows/lock/ac ext.
do you have any problems with your fan cooling your engine? could you send me a list of the things needed to do it? and a list of how to do it? i want to do this so bad on my s10 because i want more mpg's and hp's. oh and does yours work fine with the ac?
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