overheating? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > Wrangler General Discussion > overheating?

Year End Clearance Sale! Save 20%Santa Kolak Announces: Kolak Exhaust 20% Off Sale!ROCK BOTTOM prices on LIFT KITS at Rockridge4wd!! WANT TO

Reply
Unread 08-15-2009, 09:42 AM   #1
Mudzilla6661
Web Wheeler
 
Mudzilla6661's Avatar
2010 JK Wrangler 
 
Join Date: Jan 2009
Location: Claremont, New Hampshire
Posts: 1,409
overheating?

My girlfriend just got her wrangler its a 2002 tj 4 banger auto. anyway we were driving yesterday for a little bit when it suddenly started getting really hot. It did this the other day too we had to let it cool down before we drove it home. It has plenty of coolant, and the radiator looks fine. The other day when it got really hot and then we turned it off we could hear something boiling like the radiator fluid or something. any clue what this problem could be? I was thinking it could be the thermostat is just not working correctly so it wouldn't release coolant into the engine when it got hot? how do you tell if it is the thermostat? what else could it be?

thanks

Kyle

__________________
check out my build of Mudzilla

2010 jk islander aka Mudzilla 2.5 AEV lift 35" kevlars, PSC front and rear bumpers Q10000 winch. More to come!
Mudzilla6661 is offline   Reply With Quote Quick reply to this message
Unread 08-15-2009, 11:00 AM   #2
daggo66
Registered User
2009 JK Wrangler 
 
Join Date: Jul 2009
Location: NJ exile living in Baltimore
Posts: 1,136
There's no test for a thermostst that I'm aware of. The part itself is cheap, but replacing the coolant isn't. Have you checked for any leaks?
__________________
Tom
daggo66 is offline   Reply With Quote Quick reply to this message
Unread 08-15-2009, 11:00 AM   #3
Mudzilla6661
Web Wheeler
 
Mudzilla6661's Avatar
2010 JK Wrangler 
 
Join Date: Jan 2009
Location: Claremont, New Hampshire
Posts: 1,409
i haven't seen any leaks anywhere yet. I will check again though
__________________
check out my build of Mudzilla

2010 jk islander aka Mudzilla 2.5 AEV lift 35" kevlars, PSC front and rear bumpers Q10000 winch. More to come!
Mudzilla6661 is offline   Reply With Quote Quick reply to this message
Unread 08-15-2009, 11:20 AM   #4
Unlimited04
This post/info=my opinion
 
Unlimited04's Avatar
2004 LJ Wrangler 
 
Join Date: Dec 2005
Location: Colorado
Posts: 23,499
what color is the coolant? is there any brown mud in the overflow container? if so, its likely your coolant's pH is f'ed causing some rust inside the block, heater, etc and could be causing a clog in the system. you'll need to flush the fluid system completely with garden hose, then install new coolant. if you need to replace the thermostat anyway, this is the perfect time to flush the whole system.

http://www.youtube.com/watch?v=tVWzn...eature=channel
Unlimited04 is offline   Reply With Quote Quick reply to this message
Unread 08-15-2009, 12:43 PM   #5
daggo66
Registered User
2009 JK Wrangler 
 
Join Date: Jul 2009
Location: NJ exile living in Baltimore
Posts: 1,136
Whatever you do, do not let it run hot until you find the cause. It could cause head warping issues, especially on a 4.
__________________
Tom
daggo66 is offline   Reply With Quote Quick reply to this message
Unread 08-15-2009, 05:49 PM   #6
jay-h
Registered User
1989 YJ Wrangler 
 
Join Date: Dec 2006
Location: , NJ
Posts: 4,522
The intermittent aspect sounds like a thermostat. I'd replace that first.
jay-h is offline   Reply With Quote Quick reply to this message
Unread 08-15-2009, 06:02 PM   #7
rustywrangler
Got my eye on you.....
 
rustywrangler's Avatar
 
Join Date: Apr 2005
Location: Syracuse, NY
Posts: 18,616
If you are boiling, something is blocked up. I would replace the thermostat and check your hoses. You also will want to make sure you put 50/50 back in.
__________________

Congenital Heart Disease is a reality for me, BOTH of my children have it. Please read up and become aware for future generations

Lydia Ann-Acquired 08/05/05 Open Heart surgery 08/10/05
Jacob Patrick-Acquired 01/17/08 Open Heart surgery 02/15/08
rustywrangler is offline   Reply With Quote Quick reply to this message
Unread 08-15-2009, 08:49 PM   #8
Mean Max
Don't poke the bear
 
Mean Max's Avatar
1991 YJ Wrangler 
 
Join Date: Jul 2007
Location: Stuart, Florida
Posts: 13,682
Quote:
Originally Posted by daggo66 View Post
There's no test for a thermostst that I'm aware of. The part itself is cheap, but replacing the coolant isn't. Have you checked for any leaks?
Actually, you can test a t-stat at home with a pan of water on the stove top, and a cooking thermometer.

It's even a good idea to test the new ones, plenty of folks have gotten brand new defective t-stats.

Max
__________________
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   Reply With Quote Quick reply to this message
Unread 08-15-2009, 09:33 PM   #9
rustywrangler
Got my eye on you.....
 
rustywrangler's Avatar
 
Join Date: Apr 2005
Location: Syracuse, NY
Posts: 18,616
Quote:
Originally Posted by Mean Max View Post
Actually, you can test a t-stat at home with a pan of water on the stove top, and a cooking thermometer.

It's even a good idea to test the new ones, plenty of folks have gotten brand new defective t-stats.

Max
I have had two new ones fail in on the stove right out of the box.
__________________

Congenital Heart Disease is a reality for me, BOTH of my children have it. Please read up and become aware for future generations

Lydia Ann-Acquired 08/05/05 Open Heart surgery 08/10/05
Jacob Patrick-Acquired 01/17/08 Open Heart surgery 02/15/08
rustywrangler is offline   Reply With Quote Quick reply to this message
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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

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.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.