Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WJ > Troubleshooting/Problems

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 10-21-2009, 03:18 PM
Member
 
Join Date: Aug 2009
Posts: 142
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2101
Jeep95XJ is on a distinguished road
New 5.9 electric fan fix

OK as i stated in a previous thread my low speed fan switch went bad on my niner. Now i was told "the switch is no longer made" "you cant find it" Well in part people were right. However thats not good enough for me. I did find the switch at a dealer in MO however im not paying $95 + whatever the dealer wants to add onto it seeing as they have the LAST one in the country! Well i did a little homework. The stock low speed switch kicks on at 213* and high speed kicks on at 220* Before today i had no fan till 220* and obviously we cant have that. Now Duralast part # SU109 or 5U109 (same part some autozone locations just cant tell the difference between a 5 and a S) Is for a 86-87 Buick Grand National. Direct plug and play. 3/8 NPT same electric plug 100% drop in. Kicks the fan on at a cooler 200* That along with a 180* stat and so far so good. Also decided to replace the stock 1998 upper and lower hoses while i was at it. No parts store has 5.9 hoses. Dealer only at almost $500 a pair. Well the stock 5.2 hoses are exactly the same. Just cut them in half and fit the fan switch sending unit T fittings into the hoses. Flushed the block and radiator and refilled. Hope this helps out any of you guys with niners that have low speed fan problems or just want to run a little cooler. Another thing i see guys doing is using this Buick fan switch as a low speed and using the stock low speed switch in place of the high speed. 200* low 213* high. If my stock low speed switch worked id do this also. Ill follow up on this thread when i find a plug and play switch to replace the high speed 220* switch as a plug and play with a switch that kicks on about 210* Should work perfectly with the 200* low speed switch. Id like high speed before the 220* mark. Thats just me though. Ahh and yes i was worried about having heat on cold days. Heat still cranks just fine.
__________________

__________________
Reply With Quote
  #2  
Old 10-21-2009, 06:56 PM
jeepnjeep's Avatar
Senior Member
My Jeep: 2005 4.7L WK
 
Join Date: Jul 2009
Location: Nassau, NY
Posts: 1,381
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 3393
jeepnjeep is just really nice
Re: New 5.9 electric fan fix

SWEET!! Screw the stealers! Yankee ingenuity wins again!
__________________

__________________
Hi, Im JIM
2005 Grand Cherokee Laredo
4.7 Ltr engine.
Tow pkg.
Cargo pkg.
So far K@N replacement air filter,hood scoops, 255/65/17 General Grabber AT2 tires, Magnaflow muffler and I trimmed the front valance under the bumper.
"An unarmed man can only flee from evil and evil is not overcome by fleeing from it."Col. Jeff Cooper
Reply With Quote
  #3  
Old 11-15-2009, 03:43 AM
New Member
 
Join Date: Nov 2009
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
97frankenheep is on a distinguished road
Re: New 5.9 electric fan fix

Did you happen to find a p/n for a replacement high speed fan switch? I'm trying to install a 5.9L e-fan on my 5.2L I have been trying to find the switches or a substitute for some time now. Your post for a low speed fan switch is a huge help!
__________________
Reply With Quote
  #4  
Old 11-17-2009, 12:36 AM
Member
 
Join Date: Aug 2009
Posts: 142
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2101
Jeep95XJ is on a distinguished road
Re: New 5.9 electric fan fix

Actually yes! They are the same! The upper and lower hose both use the same switch. The antifreeze in the lower hose will always be cooler due to the fact that it has already passed through the radiator. If it's running hot enough for the gauge to read 220 the antifreeze in the lower hose is around 212 which is quite high. That kicks on a 2nd relay which kicks on the high speed. I actually found a better switch than the GM one i posted above. I ordered it from summit. It's made by becool and the part # is 75009 The fan kicks on a little later but its much closer to stock spec. Id run a 195* stat with that switch. You can use one in the upper and lower hose and it will function just like stock. If you want to run cool and run the 180* stat juse use the GM switch listed above.
__________________
Reply With Quote
  #5  
Old 11-20-2009, 01:57 AM
New Member
 
Join Date: Nov 2009
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
97frankenheep is on a distinguished road
Re: New 5.9 electric fan fix

I tried that p/n for be cool and It pulls up a fan assembly. But that makes complete sense. I would have spent forever looking for a different switch! I just over thought something so simple! Thank you for your help!
__________________
Reply With Quote
  #6  
Old 11-21-2009, 11:37 PM
Member
 
Join Date: Aug 2009
Posts: 142
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2101
Jeep95XJ is on a distinguished road
Re: New 5.9 electric fan fix

Your right sorry about that. Here is the link to the switch.

http://www.summitracing.com/parts/BCI-75030/
__________________
Reply With Quote
  #7  
Old 07-18-2010, 01:11 PM
Member
 
Join Date: Aug 2009
Posts: 142
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 2101
Jeep95XJ is on a distinguished road
Re: New 5.9 electric fan fix

A new part number has been found. I know this is an old thread but it's about an old truck! This is what guys have been using so far with good results and its plug and play.

Napa part # ECH TS4015
__________________

__________________
Reply With Quote
Reply

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric brakes? NHWK05 Troubleshooting/Problems Discussion 2 07-23-2009 06:58 AM
rearend travel fix for the SRT8 lowering springs Scottina06 Trouble Shooting/Problems/Service 2 07-08-2009 06:29 PM
Electric cooling fan mjl2610 Grand Cherokee - WK 21 06-30-2009 06:42 PM
Doug's 304 Stainless Steel Electric Exhaust Cutouts ducks unlimited Performance Modifications 2 06-14-2009 11:07 AM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 04:18 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by Chrysler Group LLC.