What is going on with my ZJ? - 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 > What is going on with my ZJ?

Jeep Gear & Install Packages!Rough Country Lift Kits and Parts!Poison spyder items @ oconee off road 706 534 9955

Reply
Unread 05-09-2013, 05:26 PM   #1
BPF317
Registered User
1997 ZJ 
 
Join Date: Jan 2013
Location: Vancouver, WA
Posts: 5
What is going on with my ZJ?

So the last couple of times I have drove my jeep home from work I would stop by the store and when I come out I have coolant ejected and all over the ground. It is coming out of the over flow tube (that goes down and out the wheel well from the reservoir). I checked the radiator and it is full but the reservoir is now completely empty. What is going on the my reservoir doesn't have any coolant but my radiator is full? What do I do to fix this problem?

1997 Jeep Grand Cherokee 5.2L

BPF317 is offline   Reply With Quote Quick reply to this message
Unread 05-09-2013, 05:46 PM   #2
BPF317
Registered User
1997 ZJ 
 
Join Date: Jan 2013
Location: Vancouver, WA
Posts: 5
Just found this... the forth problem looks promising. Would this cause reverse pressure to be sent back to the reservoir and make it eject fluid out the overflow tube?

13. Overheating Issues

Start by replacing your thermostat and water pump. They are easy wrenching and the parts are cheap. 195 degree thermostat.

Second, check and replace the fan clutch. Chuck the fan back and fourth. Any movement is bad and can cause wear on the water pump bearing. Also, if the fan spins more then a third of the way around cold, it needs replaced.

Third, flush the coolant system. There is a plug at the bottom of the radiator that makes this an easy process. Please don't do this while engine is warm.

Fourth, replace the radiator cap with a new 18 pound cap. The spring can become faulty and cause improper flow. Coolant bubbling in the reservoir is a good way to tell if the cap needs replaced.

Fifth, clean both sides of the radiator. Mud/bug/debris filled fins will not allow proper cooling.

Sixth, burp the cooling system. If there is air in the system it will wreak havoc on the flow. Do this by parking on a steep incline and let the engine run from a cold start for the few minutes with the cap off.

Seventh, for slight overheating at cruise you're looking at a clogged catalytic converter. Low engine vacuum at cruise and high back pressure caused by the clogged exhaust leads to a build-up of heat and pressure in the engine.
BPF317 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






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.