NAXJA Forums -::- North American XJ Association  

Go Back   NAXJA Forums -::- North American XJ Association > NAXJA Unibody Jeep Technical Forums > Jeep Cherokee XJ (1984 - 2001) > OEM Tech Discussion
HOME Member FAQ Sponsor Info Rules Bylaws E-Mail

OEM Tech Discussion Forum for OEM (Original Equipment) or stock XJs and MJs.

Reply
 
Thread Tools Display Modes
  #136  
Old April 27th, 2012, 20:44
lazyxj's Avatar
lazyxj lazyxj is offline
NAXJA Member #1310
 
Join Date: Mar 2004
Location: Los Angeles
Posts: 2,071
Re: How can I hook up an efan timer on a 2001?

Quote:
Originally Posted by fallacist View Post
How does it turn off? Are you still using the elk?
The timer shuts the added fan relay off, at the preset amount of time.
My ELK is still working fine after 3+ years
__________________
Both Cherokees are still Real XJs http://www.naxja.org/forum/showthrea...hlight=real+XJ
2001 Sport, 4 " lift, 33 X 10.50 KM2, DB, R.E.-UCA, JKS-LCA, ACOS, SYE, 4.56-8.25 TruTrac-D-30-E-Locker both with alloy shafts, Hidden M8000 winch, Vanco/Sport-Trac front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate. http://www.flickr.com/photos/lwade/c...7603770130683/
1997 Country, Mostly stock, 2" lift, Engine mods, Towing baseplate
Reply With Quote
  #137  
Old April 28th, 2012, 01:03
fallacist fallacist is offline
NAXJA Forum User
 
Join Date: Sep 2011
Location: Durango
Posts: 440
Re: How can I hook up an efan timer on a 2001?

This is something I need to tackle. Its just that electrical stuff irritates me. I've wired an efan into my old chevy pick up before, but this seems to have some added complications.

To make things easier I'm probably going to grab one of those fuse blocks from blue sea (http://www.westmarine.com/webapp/wcs... assNum=50554)

Otherwise this is pretty simple? I run a switch/button, a relay, and program the elk? Do I still need diodes if I'm using that fuse block?

Might as well replacing the wiring on my battery while I'm at it.
Reply With Quote
  #138  
Old April 28th, 2012, 09:22
lazyxj's Avatar
lazyxj lazyxj is offline
NAXJA Member #1310
 
Join Date: Mar 2004
Location: Los Angeles
Posts: 2,071
Re: How can I hook up an efan timer on a 2001?

Quote:
Originally Posted by fallacist View Post
Do I still need diodes if I'm using that fuse block?
My fan needed the diodes to keep the relay from back-feeling the XJ's electrical when the ignition is turned off.
__________________
Both Cherokees are still Real XJs http://www.naxja.org/forum/showthrea...hlight=real+XJ
2001 Sport, 4 " lift, 33 X 10.50 KM2, DB, R.E.-UCA, JKS-LCA, ACOS, SYE, 4.56-8.25 TruTrac-D-30-E-Locker both with alloy shafts, Hidden M8000 winch, Vanco/Sport-Trac front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate. http://www.flickr.com/photos/lwade/c...7603770130683/
1997 Country, Mostly stock, 2" lift, Engine mods, Towing baseplate
Reply With Quote
  #139  
Old September 12th, 2013, 17:51
Rockhound-NC Rockhound-NC is offline
NAXJA Forum User
 
Join Date: Aug 2013
Location: NC
Posts: 10
Re: How can I hook up an efan timer on a 2001?

VERY happy to report in my first go I got this all set up and working! I couldn't have done it without this thread and others. I went with the "plan c" wiring that is circling around a bunch of XJ forums. Its the 2 relay setup that switches the timer/fan on when you turn off the vehicle. I followed the diagram exactly as provided. So mega thanks to its original author (I think he is on CherokeeTalk?).

I've got one relay up in my engine bay with another relay I already had from my aux. lights. The second relay and timer are behind the glove box. It took me about 7 hrs start to finish but I am admittedly slow and not the best at wiring! Once it worked and I had to fine tune the timer, that took only about 15 minutes. I used the trick I read in here about setting it to 3 seconds, then switching the jumper. I settled on 2:30, guess I gotta wait till next summer to see if this solves my heat soak misfire!!

Anyways I am just all jacked up because I was dreading trouble shooting my expected problems. Thanks all!
Reply With Quote
  #140  
Old May 25th, 2014, 17:11
Rockhound-NC Rockhound-NC is offline
NAXJA Forum User
 
Join Date: Aug 2013
Location: NC
Posts: 10
Re: Re: How can I hook up an efan timer on a 2001?

Quote:
Originally Posted by Rockhound-NC View Post
VERY happy to report in my first go I got this all set up and working!
Wanted to report back that over the winter this mod got pretty annoying. I also realized doing any electrical work on the Jeep was quite a pain with the fan coming on every time I hit the key to test something or reconnected the bat-tree.

So today I installed a toggle switch just left of the radio, in the dash panel. I now turn my e-fan timer to "active" or "inactive." Works great.

Good luck to all getting ready to deal with heat soak as the temps warm up!!
Reply With Quote
  #141  
Old May 25th, 2014, 17:28
muddeprived muddeprived is offline
NAXJA Forum User
 
Join Date: Aug 2007
Location: PA
Posts: 1,708
Re: How can I hook up an efan timer on a 2001?

I've had this mod on my xj for 5-6 years now (has it been that long? DAMN!) and I can say it still does it's job but is annoying at times. Every now and then it would turn the fan on when I shut the passenger door and sometimes when I start up the jeep. Weird. I bet it's just a loose wire or something but it's doing it's job. No misfire to date.
Reply With Quote
  #142  
Old May 26th, 2014, 11:29
lazyxj's Avatar
lazyxj lazyxj is offline
NAXJA Member #1310
 
Join Date: Mar 2004
Location: Los Angeles
Posts: 2,071
Re: How can I hook up an efan timer on a 2001?

Just an update. The ELK has been working for over five years without fail. I still use a button to activate since it is only needed on very hot days.
Auto operation would be nice but I don't want it running every time the engine is turned off, even in the summer, since the hot soak issues only come up when the Jeep has been driven a good distance and then shut off for a few minutes, then restarted. .
Thermostatic control would be my choice if re-designing this.

While insulating the injectors and fuel rail had next to no effect, adding hood vents and insulation the bottom of the intake manifold has reduced the incidence of hot soak problems. The insulated manifold keep the intake air temps down too, helping to produce a little more power, a double benefit.
The 1997 XJ doesn't suffer the hot soak problem the 2001 does (no mini cats). It is equipped with an insulated late-model intake manifold and aftermarket headers.

Looks like we have a another HOT summer to deal with, a good time to test the latest methods.
__________________
Both Cherokees are still Real XJs http://www.naxja.org/forum/showthrea...hlight=real+XJ
2001 Sport, 4 " lift, 33 X 10.50 KM2, DB, R.E.-UCA, JKS-LCA, ACOS, SYE, 4.56-8.25 TruTrac-D-30-E-Locker both with alloy shafts, Hidden M8000 winch, Vanco/Sport-Trac front and ZJ rear disc brakes, Frame stiffeners, Lots of armor, Towing baseplate. http://www.flickr.com/photos/lwade/c...7603770130683/
1997 Country, Mostly stock, 2" lift, Engine mods, Towing baseplate
Reply With Quote
  #143  
Old December 27th, 2014, 21:03
IslanderOffRoad's Avatar
IslanderOffRoad IslanderOffRoad is offline
NAXJA Forum Addict
 
Join Date: Apr 2006
Location: Houston, Tx
Posts: 8,503
Re: How can I hook up an efan timer on a 2001?

Quote:
Originally Posted by lazyxj View Post
Just an update. The ELK has been working for over five years without fail. I still use a button to activate since it is only needed on very hot days.
Auto operation would be nice but I don't want it running every time the engine is turned off, even in the summer, since the hot soak issues only come up when the Jeep has been driven a good distance and then shut off for a few minutes, then restarted. .
Thermostatic control would be my choice if re-designing this.

While insulating the injectors and fuel rail had next to no effect, adding hood vents and insulation the bottom of the intake manifold has reduced the incidence of hot soak problems. The insulated manifold keep the intake air temps down too, helping to produce a little more power, a double benefit.
The 1997 XJ doesn't suffer the hot soak problem the 2001 does (no mini cats). It is equipped with an insulated late-model intake manifold and aftermarket headers.

Looks like we have a another HOT summer to deal with, a good time to test the latest methods.
Thanks for the update.

Bought an 01 back in October, and had the problem almost immediately upon getting it to TX. I did the TSB fix, which I thought worked, and then the heat soak popped up again this last week- on a 70 degree day after sitting in traffic on my way home from work.

Needless to say I'd like to get a fix going before summer rolls around.

Thinking the combination of this on a momentary switch, plus the vents and maybe replacing the injectors.
__________________
John V.

01 XJ Sport 2 door 5spd/4WD- 4" lift, 35" BFG ATs, JCR bumpers, Rubi 44, Ford 8.8, 4.56's, ARBs
Reply With Quote
  #144  
Old August 25th, 2017, 20:04
3blackbirds 3blackbirds is offline
NAXJA Forum User
 
Join Date: Aug 2012
Location: Ft. Rucker
Posts: 4
Re: How can I hook up an efan timer on a 2001?

Any luck you guys can re-post the wiring diagrams? Photobucket has changed their way of hosting pics. I can't see them now. Greatly appreciated if you can.

I have a '99 with a switch to relay to activate the aux fan wired to the PDC as to not get a CEL. I want to add the ELK-960 into the wiring.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Aux Efan drama!! tommyboy Modified Tech Discussion 12 March 4th, 2009 19:59
WTB: 10 blade efan 1998xj1985 SoCal For Sale 6 August 2nd, 2008 21:51
97 manual efan switch?? gixer Modified Tech Discussion 9 May 5th, 2008 21:32
first timer texasxj TEST Forum 1 December 2nd, 2004 07:56
xj oem tow hook brackets with support braces and hook also oem gas tank skid for sale joe88xj For Sale: Private Party Only. XJ ITEMS ONLY 8 August 9th, 2003 16:41


All times are GMT -7. The time now is 21:35.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
NAXJA and NAXJA logo's Copyright NAXJA. All content/images Copyright NAXJA 1999-2014