anyone do E-fans on a obs??

[SunlitComet]

10 guage wire for all main power connections, 40amp continuously rated bosch relay with a self resetting circuit breaker rated at 50amps or ****-fuse of the same. Solder and shrink tube wherever possible. Terminals to match wire gauge and amperage. Self resetting breaker is preferred as I treat it as a critical item. Being as how the fan can swoop up 30 amps that gives you a 25% buffer for start-up on the relay so as not to burn out the contacts easily.

Oh take you temp probe and fit it in the radiator fins where it touches the fluid tubes preferably nearest the radiator inlet.

 

[Monstar_est87]

Oh... I see... Ok well I got some work to do and ill let u guys know how it goes...

 

[qukon 95]

reading this post this morning i went to the junk yrd to look
for a door latch didn't find one so i walked by the fords

and looked at a 2000 linclon towncar it had the fan in it.

took it out 15 min tested it
it works cost $ 11.00. now this fan has 2 speeds the
blue wire goes to a round type coil thats mounted on the
shroud it's low speed then the orange wire is high speed.

so how would i wire this up i have to load the pics up and

the bosh relays who sell them and whats the l e d for in the
wiring diagram?

 

[SunlitComet]

for a 1995 I suppose. And what led in what diagram?

 

[qukon 95]

What onebadsuv put in his post. And I wired the fan up with with headlights on
AC on high my voltage gauge didn't move i'm pumped to do this mod.

Love my ad244 alt.

 

[retorq]

Still haven't gotten mine yet LOL

 

[SunlitComet]

The led is like a diagnostic light or power on light. As he has it wired it if a relay has applied power to the fan the light will also illuminate. so if the light illuminated the fan should be on and if the fan was not functioning you would now that it is not a power delivery issue.


You can get good relays from electronics shops or audio shops just get high amp one and good fusing and wiring.

 

[sparg93]

if you want to go nuts, I wired in two temp sensors that automatically trigger low & high speed independently....unfortunately you're looking @ 4 relays and a custom pipe split between your radiator hose for that (to hold the sensors)...but it's fully automatic!!

Most people on here only wire in the high speed and it's MUCH cheaper that way.

"Technically" you should also splice the fan into your AC, so when you turn on the AC the fan turns on. The benefit is that when you start your truck on a hot day, cold air will blow...the down side is that on the highway, your fan will also be on drawing a lot of electricity when it's not needed.

If you don't splice into the AC to auto turn on the fan, you're going to blow hot air through your vents until fresh air passes through the front of your rig.

I'm swamped at work, but when I have some free time I'll put together a full writeup...but plan on spending $200+ just for the electronics to run it (again, this truck is my science experiment, not necessarily practical) a fully automated 2speed setup.

As a side note, the computer on your truck has an "AUX Fan" pin and it can be activated. I'm not sure what temp that pin is set to activate a fan, but it's possible to do it that way as well...again, only runs one speed.

 

[qukon 95]

Yeah! I would want to use the daul speed with the like the factory does.
Looks like I need more money. That diagram is not for 2 speed fans?

 

[haks310]

Found this one eBay, looks pretty good. You could do a low/high/off switch instead of wiring into the AC. You would kick the fan on with your AC and turn the fan off while you're cruising and pushing air through the rad.

http://cgi.ebay.com/ebaymotors/LINC...Q5fTruckQ5fPartsQ5fAccessories#ht_3050wt_1136

 

[SunlitComet]

You could get aftermarket fan controllers to do both fan speeds and a/c control with this: http://www.painlessperformance.com/webcatalog/largeview.php?SearchField=30116&SearchAll=Trucks

---------- Post added at 02:33 PM ---------- Previous post was at 02:32 PM ----------

just split each fan winding between the relays.

 

[qukon 95]

that one on ebay is $$$$$ wow!!!

 

[SunlitComet]

not to mention you need two probe holes. Painless does it with one. $136 at jegs.

 

[sparg93]

this is what I used for my two sensors:
http://www.pacificcustoms.com/AM-RADIATOR-ADAPTER.html

i had them make me a custom one with x2 bungs

this is the relay kit, i personally found it to be of better quality then Ray's
http://www.hollisterroad.com/proddetail.asp?prod=MarkVIII

scroll down to the bottom and you will see the options...i was amazed at the quality, completeness and directions with the kit...but its $$$

---------- Post added at 10:39 PM ---------- Previous post was at 10:37 PM ----------

You could get aftermarket fan controllers to do both fan speeds and a/c control with this: http://www.painlessperformance.com/webcatalog/largeview.php?SearchField=30116&SearchAll=Trucks

---------- Post added at 02:33 PM ---------- Previous post was at 02:32 PM ----------

just split each fan winding between the relays.

you need speed 1 to turn off when speed 2 activates otherwise you will eventually burn out the motor...i think running it your way would have both speeds on.

 

[SunlitComet]

Not necessarily. In most cases if a fan low speed has two electrically powered poles to drive drive the rotor it at slow speed. typically 1 or more poles are added and powered as well to boost the speed to high. Now of course this is dependent on the design of the fan so some simple testing will help identify it works in such a way. Or you can get your hands on a tech manual for the town car or ford techie to see the theory of operation for the cooling system control relays.



This is the diagram for that Lincoln car and with the fact that it has a seperate fuse for each speed and the way the motor is drawn it leads me to believe the fan is wire as such.

http://repairguide.autozone.com/zne...96b43f/80/24/5f/59/large/0996b43f80245f59.gif


Now I could still be wrong but the end user should find out and verify for themselves or get someone to help find out.

 

[haks310]

Would this be another viable option to just run the high speed?
http://www.amazon.com/gp/aw/d/B000CNN3LS/ref=redir_mdp_mobile/185-2418401-8287800

It would start the fan at 60% and kick up to 100% if need be.

 

[SunlitComet]

Absolutely as long as the fan is wired to work at full power with one winding on a two speed motor use that high speed winding on the controller. You really need to know how the fan works internally to be sure.

 

[qukon 95]

I have a little good news!!!! i was googling wiring a 2 spd cooling fan and i clicked
on this forum and this guy used a fan relay from a volvo it has a power wire and a

relay then 2 trigger wires in the middle PICS (www.photobucket.com/qlcp) i tested it out

and it does control low & high speed on the fan when you ground one of the trigger

wires as follows .
it has 1 & 2 out 1 goes to the low fan spd the 1 in trigger wire goes to the temp
probe. 2 out is the high fan spd and the 2 trigger wire will be wired to the ac wire

you will have to do a relay so that the ac clutch power wire will open a ground output
sinse this fan relay use a ground to trigger it. A $ 5.00 item at the jnk yard it was a 96

volvo this was in and this unit is sealed . Now i just need to get the temp probe setup , i might have to cut the efan shroud so i will clear the water pump pulley bolts i want to put it inside my fac shroud ,wire ,wire loom, good fuse holders and heat shrink
let the fun began

 

[sparg93]

i've read about the Volvo setup!!! Much cheaper, but i wasn't sure how to wire it up

 

[qukon 95]

I'm completely done installing my EFAN i just have to tweek the adjustable

thermos switch. Most of the picks will be on (www.photobucket.com/qlcp)
i spent $65.00 on every thing and the hrs it took i lost count but it will
be less time i doing it again. I picked up a couple of these volvo relays
for the next install . Now every one talks about the tarus efans they are
small little fans the fan i got is huge in comparsion mine out of a 2000 town
car and they are in crown vics to and i did have to cut the shroud down
alot to put my shroud back on. I can feel the fan sucking air through the
grille. another project done !!!