Coolant Overflow
Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 993
Likes: 26
From: La Follette, TN
Coolant Overflow
My 98 coupe has suddenly developed a problem with it's cooling system. The temp has also started running hotter than usual. The temp usually runs about 190 consistantly, but lately it starts to creep up to a little over 220 when i'm in traffic. After i get moving for a while it will only get back down to about 210, but starts to rise if i get in traffic again. Also when i get home and in the garage, the reservoir cap leaks coolant, but only if the temp is over 220 when i turn the car off. After it cools down i try adding some more coolant but it doesn't seem to take in as much as it loses. I found an old thread by PETE O that mentions replacing the reservoir cap,which i will do, but could my themostat be going bad as well.
Thanks for the help.
Thanks for the help.
Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 993
Likes: 26
From: La Follette, TN
Thanks. After closer inspection, i did find that there is a hairline crack where the nipple meets the tank. I called vettes of houston and am going to get a new tank and cap in the morning. Also i'm assuming you are saying the temp problem is from air in the system.
Last edited by tslick98; Aug 19, 2011 at 07:54 PM.
Thread Starter
Burning Brakes
Joined: Sep 2009
Posts: 993
Likes: 26
From: La Follette, TN
Air in the system will very definitely cause a heating problem. Here is a link to the procedure that I use to get the air out:
http://forums.corvetteforum.com/c5-t...erheating.html
There are other burping procedures but this one works for certain.
http://forums.corvetteforum.com/c5-t...erheating.html
There are other burping procedures but this one works for certain.
