Overheating - Leaking out radiator cap

Old 09-20-2012, 01:44 PM
Junior Member
Thread Starter
Join Date: May 2012
Posts: 8
Exclamation Overheating - Leaking out radiator cap

I have a 2000 Chrysler Cirrus LXi and noticed the car overheats after awhile. The coolant will leak out the cap and the reservoir will start bubbling. I have checked the oil and see no milky white film on oil and there is no smoke coming out the exhaust and I have no loss of power or compression. The two fans also come on. I did notice that there was a small chip on the lip of the radiator neck. I used JB weld putty to seal it but coolant will still leak out the cap. I have checked hoses which seem to be fine. I have attached a picture of the radiator cap that showed the chip before I repaired it with JB Weld putty. I was wondering where I could get a replacement radiator neck or is that what it is even called? What could be causing the overheating? Any suggestions?

You can view the radiator neck and lip here:
Old 11-27-2012, 09:06 AM
Junior Member
Join Date: Jan 2012
Posts: 6

Had a somewhat similar problem with my 97 Cirrus. The source of my overheating problem was air trapped inside the cooling system caused by improper bleeding after replacing coolant.

The 97 Cirrus doesn't have a bleed valve or connection, so the procedure for bleeding was to remove the cap and cycle through several heat up cycles.
Old 11-27-2012, 10:05 PM
Senior Member
Join Date: May 2008
Location: Gatineau, QC, Canada
Posts: 119

Hey Tim King, have you replaced that part yet. I have another one available. Private message me.

Old 12-26-2012, 11:05 PM
Junior Member
Join Date: Dec 2012
Posts: 15

Did you put a new radiator cap on? You can also remove the thermostat to make sure that's not the problem. If it no longer overheats with the thermostat removed, then you either have a small leak somewhere, or it needs a new thermostat.
Related Topics
Thread Starter
Last Post
General Tech
12-30-2014 11:48 PM
Chrysler 200 & Sebring
02-22-2014 08:58 AM
Chrysler Voyager & Town & Country
07-17-2009 05:17 PM
300M, Concorde, LHS, New Yorker
05-24-2009 06:51 AM

Thread Tools
Search this Thread
Quick Reply: Overheating - Leaking out radiator cap

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.