xj overheating - JeepForum.com

LinkBack Thread Tools
post #1 of 3 Old 01-24-2011, 02:49 PM Thread Starter
Registered User
1990 YJ Wrangler 
Join Date: Jun 2008
Location: pa
Posts: 350
xj overheating

alright so here's what I did. my 96 xjs heater sucked. I flushed the core did away with the control valve and ran a bit of water through the pump thru the whole system to make sure it circulated. come to find out the problem was the vent on the blower. I zip tied it open and the heater worked great. the next day I started it waited for it to warm up and it didn't. it overheated. I changed both the water pump and the thermostat and ran the return line of the pump into the suction still overheats. it has plenty of coolant just kinda stuck. maybe the water froze somewhere? its been really cold where im at. any ideas? im gonna get at it wednesday im out of town now just need an idea here. help!

skimsurf is offline  
Sponsored Links
post #2 of 3 Old 01-24-2011, 02:55 PM
Registered User
1996 XJ Cherokee 
Join Date: Jan 2011
Location: Plattsburgh
Posts: 112
There has got to be a blockage someplace, Did you burp the system after doing all this work, air in the system would produce these symptoms.
adkjeepxj is offline  
post #3 of 3 Old 01-24-2011, 04:53 PM
It's the crank sensor!
tjwalker's Avatar
1999 XJ Cherokee 
Join Date: Nov 2007
Location: Central Minnesota
Posts: 8,754
Did you have a verified concentration of coolant to water?

Replace radiator cap if hasn't been done recently. A $5.00 investment that is often overlooked.

Radiator is in play here. Either frozen or faulty.

99 Cherokee, 4.0 AW4, NP242
Past Jeeps: 49 Willys, 81 Scrambler, 88 Comanche
Without "data", all you have is an opinion!
tjwalker is offline  

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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
Overheating!!!!! XJ-Obi XJ Cherokee Technical Forum 5 01-25-2010 05:31 PM
Overheating when really hot outside 95cherokee33s XJ Cherokee Technical Forum 7 08-19-2007 02:06 PM
Overheating? btfury XJ Cherokee Technical Forum 1 08-15-2007 07:48 AM
overheating 92 bigbluezj94 XJ Cherokee Technical Forum 1 08-12-2007 05:05 PM
overheating ChipsXJ XJ Cherokee Technical Forum 18 01-27-2006 10:33 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