Ford Taurus Wiring Solution (CHEAP) - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 896 Old 02-07-2012, 10:45 PM Thread Starter
kjg26
Registered User
 
kjg26's Avatar
1993 YJ Wrangler 
 
Join Date: Jul 2003
Location: North of Atlanta
Posts: 1,854
Ford Taurus Wiring Solution (CHEAP)

After scouring the internet for ford taurus fan wiring i finally came upon a decent solution. I can't take credit for the design but I will explain it the best I can here. I also will pose a few questions and options to you all.

Apparently Volvos of various years used dual speed electric fans that were managed by a nifty little all inclusive relay, sensor controller and power input.

here is the part with some of the wiring from the donor vehicle


I actually picked up two of them because they were cheap and I found them.

One came from a 1992 Volvo 960 and was found behind the passenger headlight
The other came from a 1997 Volvo 850 and was on top inside of the passenger side of the fan shroud.
Other than wiring colors they are exactly the same as far as I can tell. I imagine these can be found on a wide range of volvo vehicles. If they have an electric fan just follow the wires from the fan motor back about 2-3 feet and you should find the relay/controller/power box thingy.

looking at the picture on the far left you have a green and red heavy gauge wire that will go out to your fan motor. I believe they are the same gauge so to which fan is up to you. On the far right you have a heavy gauge wire that will go to a heavy duty (75a-80a relay) then to the battery and to a switched power source.

Now here is where the options appear. I have drawn out what I believe to be the two best options.



Option ones utilizes two temperature sensors one to control the low speed and one to control the high speed. The question I have is what temperature settings should be utilized? I don't believe their should be overlap as running both high and low speed motors at the same time would burn them out quickly. Should their be a temperature gap between the temperature probe ranges (ie. low on at 185, off at 165, high on at 210 off at 185)? With this option I would have a simple on/off rocker switch on the dash that when in normal operation would be in one position but by switching it would cut power to the relay. An LED would indicate that the fan has been overrode and are off.

Option two utilizes only one temperature probe and a 30 amp bosch relay with 87 and 87a terminals. The normally closed circuit would be attached to the temperature probe the normally open circuit would be attached to the high speed trigger/sensor wire. This relay would then be run to the cab where a 3 position switch would control it, (down=normal operation based on temp, middle=off with LED indicator, up=high speed fan)


In the middle you have two small gauge trigger wires that will go sensors (these are low draw)


Black 1993 YJ 4.0, 5 Speed
Slowly but surely getting better and better. Trailer build soon!!
kjg26 is offline  
Sponsored Links
Advertisement
 
post #2 of 896 Old 02-07-2012, 10:58 PM
BackRoadJPin
1995 Wrangler
 
BackRoadJPin's Avatar
1995 YJ Wrangler 
 
Join Date: Mar 2004
Location: East-O-The Lake
Posts: 1,781
Quote:
Originally Posted by kjg26
Option ones utilizes two temperature sensors one to control the low speed and one to control the high speed. The question I have is what temperature settings should be utilized? I don't believe their should be overlap as running both high and low speed motors at the same time would burn them out quickly.
I am very interested in seeing how this works out. AS for the temps say for a MPFI motor you would have a two stage temp sensor low speed on 210F high on 240F off 185F this is just a sample of the temps (I am still researching this myself) but the taurus is not a dual motor but a dual speed single motor. So it should only run on low or high but not both, to ease the power surge on the high speed amp draw it is easier on the system to have the low speed on first then ramp up to the high speed.

edit: do you have a link to the more details on this topic? I would like to read up more on this I am tired of seeing this taurus fan sitting under the work bench and I have an idea what direction I am already going to go, but you have now sparked my interest in this route before I make my final decision.

Back Road Jeepin

BackRoadJPin is offline  
post #3 of 896 Old 02-07-2012, 11:00 PM
Billy
Web Wheeler
 
Billy's Avatar
1993 YJ Wrangler 
 
Join Date: Feb 2010
Location: Surprise
Posts: 1,801
hmmm...

subscribed. time to learn me some knowledge...

Everyone IS out to get you, if you just believe in yourself and try hard enough!
Billy is offline  
post #4 of 896 Old 02-07-2012, 11:04 PM
BackRoadJPin
1995 Wrangler
 
BackRoadJPin's Avatar
1995 YJ Wrangler 
 
Join Date: Mar 2004
Location: East-O-The Lake
Posts: 1,781
^^^^^^^^^^^^^^^^^^
yeah what he said

Back Road Jeepin

BackRoadJPin is offline  
post #5 of 896 Old 02-07-2012, 11:11 PM Thread Starter
kjg26
Registered User
 
kjg26's Avatar
1993 YJ Wrangler 
 
Join Date: Jul 2003
Location: North of Atlanta
Posts: 1,854
The site I found the info on is very limited.

http://m.rx7club.com/showthread.php?t=827375

Further down the page they discuss using the high input for vehicles with ac.

I will be utilizing the volvo part as it simplifies the wiring immensely. What I do as far as temp sensors and switches is still up in the air. Id prefer to have everything automated and have just the override switch in the cab. This would b a hat switch to prevent and accidental deactivation and thus overheating.

Black 1993 YJ 4.0, 5 Speed
Slowly but surely getting better and better. Trailer build soon!!
kjg26 is offline  
post #6 of 896 Old 02-07-2012, 11:13 PM
Billy
Web Wheeler
 
Billy's Avatar
1993 YJ Wrangler 
 
Join Date: Feb 2010
Location: Surprise
Posts: 1,801
Quote:
Originally Posted by BackRoadJPin View Post
^^^^^^^^^^^^^^^^^^
yeah what he said

Everyone IS out to get you, if you just believe in yourself and try hard enough!
Billy is offline  
post #7 of 896 Old 02-07-2012, 11:17 PM
BackRoadJPin
1995 Wrangler
 
BackRoadJPin's Avatar
1995 YJ Wrangler 
 
Join Date: Mar 2004
Location: East-O-The Lake
Posts: 1,781
Quote:
Originally Posted by kjg26 View Post
The site I found the info on is very limited.

http://m.rx7club.com/showthread.php?t=827375

Further down the page they discuss using the high input for vehicles with ac
I can see that. The high speed kicking in is pretty common with AC vehicles. Would be a smart thing to do for AC installed wranglers utilizing the AC circuit to trigger the high speed (on board air setups as well that are using the york or saden compressors.).

Back Road Jeepin

BackRoadJPin is offline  
post #8 of 896 Old 02-07-2012, 11:25 PM
BackRoadJPin
1995 Wrangler
 
BackRoadJPin's Avatar
1995 YJ Wrangler 
 
Join Date: Mar 2004
Location: East-O-The Lake
Posts: 1,781
I read that thread not entirely as informative as I had hoped. I like the idea of this tidy little relay housing.

Back Road Jeepin

BackRoadJPin is offline  
post #9 of 896 Old 02-07-2012, 11:49 PM Thread Starter
kjg26
Registered User
 
kjg26's Avatar
1993 YJ Wrangler 
 
Join Date: Jul 2003
Location: North of Atlanta
Posts: 1,854
Like I said, it was rather lacking in information. I'd rely like to use the volvo part and figure out the triggers and temp probes

Black 1993 YJ 4.0, 5 Speed
Slowly but surely getting better and better. Trailer build soon!!
kjg26 is offline  
post #10 of 896 Old 02-08-2012, 07:31 AM
TSEJEEPERS
Registered User
1993 YJ Wrangler 
 
Join Date: Dec 2003
Location: Morton IL
Posts: 5,503
I would think the controller itself would have to shut the low side off at a certain temp, then turn the high side on.
Once the temp sensor turns on it will not shut itself off untill the temp is below the start up temp.
You can buy the sensors here.
www.hollisterroad.com
Another problem is where to put the sensors.
There are bungs in the passenger side of the block.
One is directly behind the motor mount and the other is behind the exhaust manifold.
I ended up using one of these for the high side and I run the low side all the time.
http://www.steigerperformance.com/dif.cgi?SP40001
When you said the Volvos used a dual speed electric fans is that two fans or one like the Taurus fan?

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
TSEJEEPERS is offline  
post #11 of 896 Old 02-08-2012, 08:29 AM Thread Starter
kjg26
Registered User
 
kjg26's Avatar
1993 YJ Wrangler 
 
Join Date: Jul 2003
Location: North of Atlanta
Posts: 1,854
Single now that I think of it.

Black 1993 YJ 4.0, 5 Speed
Slowly but surely getting better and better. Trailer build soon!!
kjg26 is offline  
post #12 of 896 Old 02-08-2012, 08:45 AM
NHfireLJ
Web Wheeler
 
NHfireLJ's Avatar
2005 LJ Wrangler 
 
Join Date: Dec 2009
Location: Seacoast NH
Posts: 3,899
hmmmm , Subscribed...

LUCY...2005 Unlimited "LJ" Rubicon Sahara #495 Build thread. http://www.jeepforum.com/forum/f9/my...hread-2778642/

BETTY...94 SE, Stroker 4.6, 4.5,lift,35"s,D30 Aussie, 8.8. Sold
NHfireLJ is offline  
post #13 of 896 Old 02-08-2012, 09:12 AM
TSEJEEPERS
Registered User
1993 YJ Wrangler 
 
Join Date: Dec 2003
Location: Morton IL
Posts: 5,503
Quote:
Originally Posted by kjg26 View Post
Single now that I think of it.
Then I would think it would shut the low speed off and go to the high speed by itself.
Great thread!

93 YJ SOA 2" springs front, XJ springs rear w/main leaf added, High pinon 9 inch rear detroit locker front Dana 44 ARB 4.56 Gears, 36 inch Irok tires too much to list. www.mijc.org
TSEJEEPERS is offline  
post #14 of 896 Old 02-08-2012, 09:16 AM Thread Starter
kjg26
Registered User
 
kjg26's Avatar
1993 YJ Wrangler 
 
Join Date: Jul 2003
Location: North of Atlanta
Posts: 1,854
So to test this... I'm going to wire up the main power...the two fan.powers and jumper 12 volts to.the low speed fan sensor...then jumper 12 volts to the high speed sensor and probe the power wire to the low speed fan and.see if power is still flowing through. This sound like a reasonable course of action?

Black 1993 YJ 4.0, 5 Speed
Slowly but surely getting better and better. Trailer build soon!!
kjg26 is offline  
post #15 of 896 Old 02-08-2012, 09:31 AM
jeepster93
Registered User
 
jeepster93's Avatar
1993 YJ Wrangler 
 
Join Date: Sep 2006
Location: Englewood, CO
Posts: 4,404
The way I understand the issue with the Taurus fan is the power spike it causes on startup.
So, to stop that power spike on startup, the fan needs to ramp up. It needs to start at 0 rpm and speed up slower than on/off to full speed. Or even better- only spin as fast as needed to cool to the temp set, say 1/4 speed, or high speed.
And one needs to be able to turn off the fan for deep water crossings(if that is in the jeeps future, if not, not an issue).

I will be interested to see this work.

I, BTW, use the DCC controller for my fan. It does the ramp up, but is NOT cheap.
jeepster93 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Ford Taurus E-fan Help Nickabis YJ Wrangler Technical Forum 15 03-14-2015 06:11 PM
Ford Taurus Fan Jimi79 TJ Wrangler Technical Forum 10 05-28-2013 02:41 PM
Which Year Ford Taurus Fan is best for my TJ amanscorned TJ Wrangler Technical Forum 15 05-31-2011 10:22 AM
ford taurus fan khill8469 TJ Wrangler Technical Forum 5 06-28-2010 06:27 PM
ford taurus fan in yj panamacityjeep YJ Wrangler Technical Forum 3 05-01-2007 06:46 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome