coolant sensor bad?? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 8 Old 02-08-2005, 08:40 PM Thread Starter
krawlin
Registered User
2004 TJ Wrangler 
 
Join Date: Feb 2005
Location: Salt Lake City, UT
Posts: 8
coolant sensor bad??

The on board display on my 93 GC will flash coolant sensor bad every once in a while?? Where is the sensor so I can replace it? I is starting to drive me crazy.

krawlin is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 02-09-2005, 04:36 AM
Meerkat
Registered User
1996 ZJ 
 
Join Date: Apr 2003
Location: Belle, WV
Posts: 4,930
If you look at your coolant recovery tank (on the passenger side fenderwell), you will see two "caps". One is for filling, the other has wires going to it. The one with wires is the coolant level sensor. You may not need to replace the sensor at all. You may just have a dirty or loose connection.

HTH

Warren
Black 1996 5.2L ZJ Limited
Meerkat is offline  
post #3 of 8 Old 02-09-2005, 05:21 AM
marksto
Registered User
 
Join Date: Jan 2005
Posts: 10
Had the same "coolant sensor" problem on my '94 a few years ago. It was intermittant and drove me crazy for a long time. I removed the sensor and inspected it, cleaned it, etc.. to no avail. Save your sanity - go to the dealer and buy a replacement like I did.
marksto is offline  
post #4 of 8 Old 02-09-2005, 06:21 AM
jeepholic
Registered User
 
jeepholic's Avatar
 
Join Date: Aug 2004
Location: Flat South Florida
Posts: 1,221
Quote:
Originally Posted by marksto
Had the same "coolant sensor" problem on my '94 a few years ago. It was intermittant and drove me crazy for a long time. I removed the sensor and inspected it, cleaned it, etc.. to no avail. Save your sanity - go to the dealer and buy a replacement like I did.
Every time this topic comes up it's the same story, some say to inspect and clean the unit and others say to replace it period.
To inspect and clean the unit should take about 10 minutes, it may save you a trip to the store and a few bucks and give you a feeling of slight accomplishment, changing every part that you think is bad may work fine, but Jeeps are pretty durable and some items are cleanable in some cases, example:
I clean my IAC and the results are great
I clean my O2 sensor and the results are great
I buff the haze right off my headlights with great results
I clean the coolant sensor with great results.
I have also changed about 20 other bad parts on the truck including axles and pulleys, starters, alts, injectors and a ton of stuff that was unsaveable.
It doesn't hurt to try to clean it and check the connection before replacing it.

I use a Jeep
You drive a car
Big difference.

94 I6 ZJ at 4", 33's and front locker and 4.11 gears. Swampy Bypass.
Black Jeep Club Member Ver. 2 #51
jeepholic is offline  
post #5 of 8 Old 02-09-2005, 08:13 AM Thread Starter
krawlin
Registered User
2004 TJ Wrangler 
 
Join Date: Feb 2005
Location: Salt Lake City, UT
Posts: 8
Thanks for the help
krawlin is offline  
post #6 of 8 Old 06-17-2011, 03:01 PM
Glued2aPost
Registered User
1998 ZJ 
 
Join Date: May 2011
Location: Wasilla
Posts: 370
Glued2aPost is offline  
post #7 of 8 Old 06-17-2011, 06:08 PM
coralman
USER OF PARTS CATALOGS
 
coralman's Avatar
1998 ZJ 
 
Join Date: Jul 2010
Location: florida
Posts: 7,192
The attack of the coolant sensor post,lol.
coralman is offline  
post #8 of 8 Old 06-17-2011, 10:35 PM
Yekknom
Registered User
1994 ZJ 
 
Join Date: Mar 2011
Location: vancouver
Posts: 59
lol this happened to me i replaced every damn sensor except that one and it turns out thats the only one that the jeep reads if its gone bad. and one of the coolant sensors was pretty much gone when i found it
Yekknom 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
high voltage o2 sensor/bad coolant sensor Jh24k WK Grand Cherokee & XK Commander Forum 1 07-19-2013 10:22 AM
Coolant Sensor Bad MaroonGC ZJ Grand Cherokee Forum 21 05-22-2011 04:36 AM
coolant sensor bad??? cmckeon ZJ Grand Cherokee Forum 8 06-08-2007 01:19 PM
Crankshaft position sensor & coolant temperature sensor getting replaced in my 95 GC Keith1975 ZJ Grand Cherokee Forum 3 12-14-2006 03:52 PM
coolant sensor crazynut52 ZJ Grand Cherokee Forum 7 01-01-2005 03:08 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