!!!do not trust stick probes for fan controllers!!! - JeepForum.com
 
LinkBack Thread Tools
post #1 of 12 Old 03-03-2011, 08:47 PM Thread Starter
jayvando707
Registered User
 
jayvando707's Avatar
1991 YJ Wrangler 
 
Join Date: Dec 2010
Location: Bay Area
Posts: 133
!!!do not trust stick probes for fan controllers!!!

Got rid of fan / fan clutch assembly not to long ago in favor of a 16'' Hayden electric fan with a Hayden fan cotroller (probe style)....

Everything was fine and dandy till the freaking probe (with the vibes) worked itself a large hole (fins, not cores)!!! The probe no longer was getting a proper reading and therfore my YJ pegged the temp gauge.... Luckily the engine didnt go... like a dummy... i never wired the bypass switch that allows me to turn the fan on at the flick of a switch (slow crawls)... Just have to run ONE wire...

Moral here is DO NOT USE PROBE STYLE FAN CONTROLLERS... i went back to the auto store and purchased Hayden's fan controller that gets its temp reading with an actual temp sensor (actual water temp since the sensor touches the water).

Ive seen it online somewhere where someone added a black pipe "T" to the stock temp sensor location in an attmept to add the fan controller sensor. Darn thing was nearly 6'' long and water (heat) never stimulated either sensor.

I used a similar technique ("T" method) only, in my case, i used a much shorter BRASS "T" and the new set up work perfectly! I will post pictures tonight when i get home. I finished th install right before having to clock in at work...

This is kind of a pointless thread.... more like a heads up for those wanting to go this route... i know now why most people rag the PROBE style themo switches...


It is better to be tried by 12 than to be carried out by 6....
jayvando707 is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 03-03-2011, 10:47 PM Thread Starter
jayvando707
Registered User
 
jayvando707's Avatar
1991 YJ Wrangler 
 
Join Date: Dec 2010
Location: Bay Area
Posts: 133
Here are the final pics along with a pic showing just how far the STOCK sensor is pulled away from the original location... everything works flawlessly now and whats best is that now i don't have to worry about getting a false reading!!!
Attached Thumbnails
Final Take.jpg   Pretty good length.jpg  

It is better to be tried by 12 than to be carried out by 6....
jayvando707 is offline  
post #3 of 12 Old 03-03-2011, 10:49 PM Thread Starter
jayvando707
Registered User
 
jayvando707's Avatar
1991 YJ Wrangler 
 
Join Date: Dec 2010
Location: Bay Area
Posts: 133
Here is the picture of what can occur with PROBE THERMO SWITCHES...

Also included a picture of WHAT NOT TO DO!!!!!
Attached Thumbnails
Probe Failure.jpg   ******* ****.jpg  

It is better to be tried by 12 than to be carried out by 6....
jayvando707 is offline  
 
post #4 of 12 Old 03-03-2011, 10:49 PM
Douglas S.
Registered User
 
Douglas S.'s Avatar
1991  
 
Join Date: Jun 2007
Location: Saskatchewan, Canada
Posts: 2,645
You can also buy a thermostat housing that has two threaded holes in it from Hesco if you want to go another route.

1991 Land Cruiser HDJ81

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Douglas S. is offline  
post #5 of 12 Old 03-03-2011, 10:52 PM Thread Starter
jayvando707
Registered User
 
jayvando707's Avatar
1991 YJ Wrangler 
 
Join Date: Dec 2010
Location: Bay Area
Posts: 133
Quote:
Originally Posted by Douglas S. View Post
You can also buy a thermostat housing that has two threaded holes in it from Hesco if you want to go another route.
No Siht?! Wow! Before my brass "T" idea... i thought about drilling and tapping a new hole in the existing housing! Thanks for the info!!! Im sure this will benefit someone!

It is better to be tried by 12 than to be carried out by 6....
jayvando707 is offline  
post #6 of 12 Old 03-03-2011, 11:17 PM
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,722
I've installed several of the Hesco housings. I use the larger 1/4" size threaded hole (your choices are 1/8" & 1/4" NPT) and install a 90* degree elbow so that the auxiliary sender points the same direction as the PCM temp sensor. This will prevent the wires from hanging out around the belt and/or get caught in the mechanical fan for folks who are still using one.

Also, the Hesco unit is a high flow housing, and it can move a LOT more coolant. Expect to see much cooler engine temps.

Max

Sent from my HTC Incredible Droid


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Quote:
Originally Posted by UltimatE View Post
Max has a picture of every Jeep part ever made.
Quote:
Originally Posted by Benderff View Post
No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

There is no situation that cannot be improved with a small but well-placed explosive.
Mean Max is offline  
post #7 of 12 Old 03-21-2011, 12:18 PM
95greenrio
Registered User
1995 YJ Wrangler 
 
Join Date: Jul 2007
Location: Virginia
Posts: 352
Are the temp sensor threads 3/8"?

1995 YJ Rio Grand - work in progress
95greenrio is offline  
post #8 of 12 Old 03-21-2011, 12:34 PM
jbolty
Moderator
 
jbolty's Avatar
1990 YJ Wrangler 
 
Join Date: Jun 2007
Location: San Diego
Posts: 20,268
Garage
I have a stick probe and when I installed it I made the hole a little oversized and packed it with JB weld. No problems after 3 years.

.
"The right to be heard does not necessarily include the right to be taken seriously." —Hubert Humphrey
.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
jbolty is offline  
post #9 of 12 Old 03-21-2011, 03:12 PM
jeepster93
Registered User
 
jeepster93's Avatar
1993 YJ Wrangler 
 
Join Date: Sep 2006
Location: Englewood, CO
Posts: 4,653
Quote:
Originally Posted by jbolty View Post
I have a stick probe and when I installed it I made the hole a little oversized and packed it with JB weld. No problems after 3 years.
Did the same thing.
Issue free for years.
The instructions that came with my controller stated the need for this.
jeepster93 is offline  
post #10 of 12 Old 03-22-2011, 09:06 PM
Castr8r
Registered User
2006 LJ Wrangler 
 
Join Date: May 2008
Location: West Central Illinois
Posts: 535
x3 on the JB Weld; works great for 4+ years...

I've been throwed out of a carwash- too much mud!

I've done bodywork useing a winch, a tree, a prybar, and a BFH!

Now, my wild oats have turned to prune juice and all-bran...
Castr8r is offline  
post #11 of 12 Old 03-22-2011, 10:16 PM
Krochus
Registered User
1997 TJ Wrangler 
 
Join Date: Apr 2009
Location: Alma, Arkansas
Posts: 1,928
Any pics of the Jb weld attachment?

I've got my new fan control in hand that I'll be installing tomorrow. To be honest I'm leery of the probe style too. But for the price and the ability to run on the + side of the relay they're quite appealing.


I'm going to work a solution to prevent what happened to the OP from happening to me. In that I'm gonna wire in a backup alarm grounded through a 80's dodge idiot light sender. That way the alarm will sound if I forget to turn my fan back on after a crossing or to warn me of any other cooling failure that might occur during the 99.998% I'm not watching my temp gauge
posted via IPhone.

Think Green recycle your YJ's sway and trac bars today!

Quote:
Originally Posted by buickgnx88 View Post
"Jeep Wave threads, it's a newb thing, you wouldn't understand!"
Krochus is offline  
post #12 of 12 Old 03-22-2011, 10:29 PM
TA-YJ
Registered User
1992 YJ Wrangler 
 
Join Date: Dec 2007
Location: Pennsylvania
Posts: 560
Been running my probe sensor for almost a year now and its stuck in there really well. I would prefer a sensor though. If mine ever works loose, Ill definitely go this route.

1992 YJ 2.5L
Engine Mods:4.0L TB, Ford Design III 19lb Injectors, Firepower Ignition System, Ford TBird Electric Fan, Pacesetter Header, Magnaflow Cat, Dynomax Super Turbo Exhaust
Suspension Mods:BDS 2" Lift, M.O.R.E. 5/8" HD Shackles, 1" Brown Dog MML
Other:LED Tails and Herculined
TA-YJ 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











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
DW? Maybe...should I trust a dealership? ShinySideUp TJ Wrangler Technical Forum 11 07-15-2008 08:38 PM
Would you trust these? roundedge4lfe YJ Wrangler Technical Forum 10 11-27-2007 10:28 PM
Never trust a tire shop rexmundi TJ Wrangler Technical Forum 4 04-04-2006 09:33 AM
Never Trust the DEALER!! bills79jeep TJ Wrangler Technical Forum 2 03-18-2006 12:02 PM
Do you trust your roll bar? tunesoul TJ Wrangler Technical Forum 17 01-14-2005 06:31 PM

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