car got really hot fast!
Thread Starter
Intermediate
Joined: Jun 2007
Posts: 43
Likes: 0
From: Ft Worth TEXAS
car got really hot fast!
so i went to lunch and on my way back while sitting at a light my temp went from about 186 to 260! i went to pull over and all of the sudden it started shooting back down. this happened everytime i was stopped at a light and then cooled off when i started driving. is my thermostat sticking? please help me! what does this sound like to you guys?
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
sounds like you might have a air bubble in your cooling system somewhere. when your driving the water circulates and get the bubble away from your sensor but when the water isn't moving fast enough by the engine turning the water faster like when you are driving the bubble stays closer to the sensor and the air is basically steam which is a lot hotter than the water. You can try some of the methods mentioned in the tech forum and I will post some up here in just a few if someone else doesn't jump in before i get to it. I would try that before changing t-stats or anything else.
Burning Brakes
Joined: Apr 2005
Posts: 949
Likes: 1
From: Oakdale CT
The first thing I would check is your coolant level. I had a very similar problem once, and it turned out my coolant fill cap was loose and my coolant was boiling off. Added a gallon and a half of demineralized water and everything went back to normal. It's also possible your thermostat is sticking and then unseating when you drive down the road.
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
Here is one thread that has some information about what I was talking about.
http://forums.corvetteforum.com/show...ght=air+bubble
http://forums.corvetteforum.com/show...ght=air+bubble
Thread Starter
Intermediate
Joined: Jun 2007
Posts: 43
Likes: 0
From: Ft Worth TEXAS
Thanks guys. I will try all of the above, hopefully ill get it fixed this weekend and its a small issue. it just freaked me out when i saw that temp jump like that. CF comes to the rescue again. thanks again 
