coolant temperature sensor '89 YJ 2.5L - JeepForum.com
 
LinkBack Thread Tools
post #1 of 12 Old 01-07-2009, 05:03 PM Thread Starter
pyrobyro
Registered User
1989 YJ Wrangler 
 
Join Date: Aug 2008
Location: tulsa
Posts: 4
coolant temperature sensor '89 YJ 2.5L

Howdy everyone. Looks like my sensor may be dead since my gauge is no longer registering any heat. My manual is not very descriptive as to where to find the sensor, other than it is in the thermostat body. Can anyone do a walkthrough on this for an idiot like myself? It will be much appreciated!!!

pyrobyro is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 01-07-2009, 05:16 PM
RoscoeJ
Registered User
2003 TJ Wrangler 
 
Join Date: Sep 2008
Location: Springfield
Posts: 299
Garage
If your talking about temp sensor its on the drivers side near the firewall ,on your manifold.
RoscoeJ is offline  
post #3 of 12 Old 01-07-2009, 05:29 PM Thread Starter
pyrobyro
Registered User
1989 YJ Wrangler 
 
Join Date: Aug 2008
Location: tulsa
Posts: 4
coolant temperature sensor vs. temperature sending unit

If my water temp gauge is not registering any temp at all, do I need to start with the sending unit or the sensor? Just a little confused between the two different systems.
pyrobyro is offline  
post #4 of 12 Old 01-07-2009, 06:04 PM
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,734
I stole this pic from another thread in a post by Burnerman. I hope he doesn't mind!

The pic is of a 6 cylinder 4.2L, but your 2.5L has the gauge sender in the same place on your engine. It has just 1 wire connected to it. It works by grounding the gauge, so if you pull the wire connector off & ground it out the gauge will show it's hottest reading, with the key on of course!


Click here to see all of my different albums on Photobucket.
Choose any album to see all of my pics!


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 #5 of 12 Old 01-07-2009, 08:09 PM Thread Starter
pyrobyro
Registered User
1989 YJ Wrangler 
 
Join Date: Aug 2008
Location: tulsa
Posts: 4
Great! I found it and will replace the sending unit tomorrow. The picture saved the day!
pyrobyro is offline  
post #6 of 12 Old 10-30-2009, 09:03 AM
roadhog481
Registered User
 
Join Date: Oct 2009
Location: Florida
Posts: 5
thanks for the pic. i almost pulled the knock sensor
roadhog481 is offline  
post #7 of 12 Old 12-27-2012, 12:23 PM
veitski87
Registered User
1992 YJ Wrangler 
 
Join Date: Jun 2010
Location: Oak Grove, VA
Posts: 59
Quote:
Originally Posted by Mean Max View Post
I stole this pic from another thread in a post by Burnerman. I hope he doesn't mind!

The pic is of a 6 cylinder 4.2L, but your 2.5L has the gauge sender in the same place on your engine. It has just 1 wire connected to it. It works by grounding the gauge, so if you pull the wire connector off & ground it out the gauge will show it's hottest reading, with the key on of course!



I know this is an old thread but I am having a problem with a conversion and need to know what the one circles in red is is that the gauge sender? And if I ground it. Does it always stay at the hottest?

Freedom Jeep- 92 YJ 4.0HO AX-15
veitski87 is offline  
post #8 of 12 Old 12-27-2012, 01:23 PM
flcracker
Registered User
1992 YJ Wrangler 
 
Join Date: Jun 2012
Location: Naples
Posts: 885
Quote:
Originally Posted by veitski87 View Post
I know this is an old thread but I am having a problem with a conversion and need to know what the one circles in red is is that the gauge sender? And if I ground it. Does it always stay at the hottest?
yes....
flcracker is offline  
post #9 of 12 Old 12-28-2012, 07:26 AM
veitski87
Registered User
1992 YJ Wrangler 
 
Join Date: Jun 2010
Location: Oak Grove, VA
Posts: 59
And the solution would be? I have a 98 4.0 I put in.

Freedom Jeep- 92 YJ 4.0HO AX-15
veitski87 is offline  
post #10 of 12 Old 08-07-2013, 11:32 AM
spooky1
Registered User
 
Join Date: Apr 2013
Location: ellijay
Posts: 5
im replacing all of my factory guages> with mechanical guages because the circuit stirp is bad and opens up on occasions high temp,low temp aka weather changes. so out with them> it was not a good a design from the factory its supposed to last forever!! or at least as long as the jeep still runs!!
www,surpluscenter.com ask for niki/nicole mariscal!! great service, fast delivery, very fast from nebraska to georgia! call early it may ship same day?? middle of america.
(i am not connected/own/or what ever to surplus center) just nice folks!
since i live remote 40 miles round trip into a store, its easier /cheaper to order on line> even with shipping cost its cheaper!
spooky
spooky1 is offline  
post #11 of 12 Old 08-07-2013, 11:40 AM
spooky1
Registered User
 
Join Date: Apr 2013
Location: ellijay
Posts: 5
ps:buy a year engine specific shop manual>> bite the bullet ! pay the price!

its pays in the long run to have the correct manual>> just like good tools,(i have a ripsaw from 1957) calipers from 1934(still calibrates perfectly) even my o=scope 1973 also bullet proof .
all of the good tools and correct products pay off, life tools with a life time guarantee .
spooky1 is offline  
post #12 of 12 Old 08-09-2013, 12:27 PM
veitski87
Registered User
1992 YJ Wrangler 
 
Join Date: Jun 2010
Location: Oak Grove, VA
Posts: 59
Yeah I just bypassed the stock sensor and got a splice kit that taps off the fluid in the radiator hose. Works great.

Freedom Jeep- 92 YJ 4.0HO AX-15
veitski87 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
coolant temperature sensor ? k2beach TJ Wrangler Technical Forum 5 12-29-2009 06:44 PM
Coolant Temperature Sensor Bystander TJ Wrangler Technical Forum 2 05-01-2009 08:09 PM
Coolant Temperature Sensor Connection Help Urb4nTr0ll YJ Wrangler Technical Forum 2 11-14-2008 07:45 AM
Coolant temperature sensor jeepsurf YJ Wrangler Technical Forum 8 06-12-2008 06:43 PM
Measuring coolant temperature and sensor issue The Buck YJ Wrangler Technical Forum 2 07-12-2006 05:08 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