Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

How can i make the E-fan run after shutdown?

Thread Tools
 
Search this Thread
 
Old Jul 12, 2011 | 09:47 AM
  #1  
miglia-spyder's Avatar
Thread Starter
Senior Member
 
Joined: Mar 2009
Posts: 554
Likes: 1
From: Grand Rapids, Michigan
Year: 2000
Model: Cherokee
Engine: 4.0
Default How can i make the E-fan run after shutdown?

Im sick of the Hot soak issues. Sometimes when I turn my jeep off, Its spits and sputters after I start it back up. On my volkswagens, the electric fans would always run after i shut the motor off. HOw can i Do this? Are their any tricks or will i need to just wire in a manual switch?
Reply
Old Jul 12, 2011 | 10:37 AM
  #2  
4.3L XJ's Avatar
CF Veteran
 
Joined: Aug 2008
Posts: 6,588
Likes: 495
From: Chico, CA
Year: 1986
Model: Cherokee
Engine: 4.3L with headers and full 3" exhaust system
Default

Yes, there is one or two. First, vent your hood. It will let out a lot of heat. Second, there is a timer that will automatically activate the fan after shut down for a preset length of time. Contact Mudddeprived on CherokeeTalk.com for what he did.
Reply
Old Jul 12, 2011 | 10:45 AM
  #3  
Zack92MJ's Avatar
CF Veteran
 
Joined: Jun 2011
Posts: 2,460
Likes: 0
From: Dayton, Ohio
Year: 1992
Model: Comanche
Engine: 4.0
Default

Originally Posted by 4.3L XJ
Yes, there is one or two. First, vent your hood. It will let out a lot of heat. Second, there is a timer that will automatically activate the fan after shut down for a preset length of time. Contact Mudddeprived on CherokeeTalk.com for what he did.
x2

Vent write up:
http://www.cherokeetalk.com/forum/f6...ood-vent-6783/

Im going to do this one day
Reply
Old Jul 12, 2011 | 12:23 PM
  #4  
trans_am7935's Avatar
CF Veteran
 
Joined: May 2009
Posts: 1,844
Likes: 4
From: Glen Burnie, MD
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
Default

or you can get a temp switch, and set it to around 190 or so, then your fan will kick in whenever the temp is over 190 and shut off around 180, that way it still runs when you shut off the car.
Reply
Old Jul 12, 2011 | 12:30 PM
  #5  
ericfx1984's Avatar
CF Veteran
 
Joined: Jan 2011
Posts: 2,251
Likes: 1
From: Missouri
Year: 1996
Model: Cherokee
Engine: 4.0HO
Default

I installed a volvo 900 temperature switch housing on the upper radiator hose... with a 91c Bosche temps switch (came out of the radiator of a Volvo 900) then used a Bosche 30 amp relay to take power direct off the battery and right to the e-fan
Reply
Old Jul 12, 2011 | 01:12 PM
  #6  
miglia-spyder's Avatar
Thread Starter
Senior Member
 
Joined: Mar 2009
Posts: 554
Likes: 1
From: Grand Rapids, Michigan
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by trans_am7935
or you can get a temp switch, and set it to around 190 or so, then your fan will kick in whenever the temp is over 190 and shut off around 180, that way it still runs when you shut off the car.
I dont think that would work, Because the stock switch is set at 215-217... And if i shut the jeep off when the E-fan is on. The Fan just stops when the motor is shut off. Than when i go to start it back up a couple minutes later the temp has crept up to 230ish. That would be nice if that did work though.
Reply
Old Jul 12, 2011 | 01:27 PM
  #7  
miglia-spyder's Avatar
Thread Starter
Senior Member
 
Joined: Mar 2009
Posts: 554
Likes: 1
From: Grand Rapids, Michigan
Year: 2000
Model: Cherokee
Engine: 4.0
Default

Originally Posted by ericfx1984
I installed a volvo 900 temperature switch housing on the upper radiator hose... with a 91c Bosche temps switch (came out of the radiator of a Volvo 900) then used a Bosche 30 amp relay to take power direct off the battery and right to the e-fan
So can you use this manually? Sounds pretty cool!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
28
Jan 8, 2025 11:36 PM
Reddave
Jeep Builds
10
Nov 7, 2018 07:30 AM
95cherokee89
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
59
Oct 16, 2015 03:17 AM
ammonllewis1
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
Aug 31, 2015 11:27 AM
Chick-N-Picker
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
21
Aug 27, 2015 12:27 PM

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



All times are GMT -5. The time now is 04:30 PM.