Overheating at idle.. - 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 Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Overheating at idle..

ROCK BOTTOM prices on LIFT KITS at Rockridge4wd!! WANT TO Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineSavvy Billet LED Tail Lights

Reply
Unread 08-01-2009, 11:47 PM   #1
KevinM90
Registered User
1998 XJ Cherokee 
 
Join Date: Jul 2008
Location: Maine
Posts: 262
Overheating at idle..

Motor is a 5.2 v8
So about a month back my water pump went, pissing anti freeze all over the place. I replaced that and it worked fine for about 3 weeks. Then It started running very hot again, so first I tried the thermostat. That didn't do too much. Then this past week I was pulling in to work and it was running about 220 degees, so i parked as soon as possible, and at that point anti freeze was blowing out everywhere again. I replaced the radiator, and its been alright since, but it seems like if I drive for a while, then stop to go do something with the truck idling, the temps start to get high. If i am running and moving, it is fine.
I tried searching but the most I could come up with was to replace a fan relay, and I dont have an electric fan, just the belt fan. The only thing left I could think of was a fan clutch? Is there anything else I should be looking for here? I know a bad head gasket will lead to overheating, but It runs cool and fine when moving, so I think I ruled that out, but not sure. Sorry if Im vague, its late at night and Ive had a long day dealing with it.

__________________
1996 Jeep Cherokee Sport. 3" lift/31" combo. Some lights. Flowmaster. 5 different horns. Full size spare. No rust. Daily driven. Will be...forever.
KevinM90 is offline   Reply With Quote Quick reply to this message
Unread 08-02-2009, 12:54 AM   #2
Subie-Jeep
Registered User
2014 MK Patriot 
 
Join Date: Jul 2008
Location: Belgrade,MT
Posts: 164
if its the head gasket your oil/coolant will look "milky".my bet would be fan clutch
__________________
2014 Patriot Latitude
2006 GMC Sierra 1500,reg.cab, short box,4x4,mostly stockTraded in
1994 ZJ 2" BB,31" TrXus MT-sold and have regretted it ever since :(
2002 Subaru Impreza 2.5RS w/ too much to list here
1994 Toyota 4Runner-I couldn't destroy it but the rust was making good progress-Traded in.
Subie-Jeep is offline   Reply With Quote Quick reply to this message
Unread 08-02-2009, 03:40 PM   #3
ratmonkey
R.I.P.
 
ratmonkey's Avatar
1997 ZJ 
 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,794
fan clutch has failed.

run the motor up to temp then shut it off and watch how much longer the fan spins after the motor stops. if it spins more than three times the clutch is shot. ideally it shouldn't spin any more after the motor stops when it's up to temp.
__________________
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

ratmonkey 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.