What do you think?

[1HotVette]

I blew an upper radiator hose earlier this summer. After putting new hoses on, I refilled the radiator with coolant following the procedure that I found on here. Anyway, now after driving long enough to get to operating tempature, after I stop, I here gurgling\boiling sounds in the cooling system. I believe that I bled the system and everything, but why would it make the gurgling\boiling sounds after I shutdown? Oh, by the way it is a '93

Thanks,

Gary

 

[G Winter]

Are you losing any coolant ? How hot did it get when you blew the hose? If it got to hot you may have a leaking head gasket or cracked head. I am not familiar with the the LT 1 engine , it could be some air somewhere in the system. Someone that is familiar with it may have more ideas.

Glenn

 

[1HotVette]

I am not leaking any coolant. I also am not getting any coolant in the oil, or in the exhaust. Just the gurgling\boiling sound. When I am on the highway, the temp runs about 193. Driving around town it goes up to about 210 - 220. I have bled the system using the bleeders valves.

 

[tigmaned]

are you sure you have the system full? turn the heater on and that will take some coolant and my need some re-filling. take the rad cap off, start it, if you have coolant pushing out you have a bad head gasket. but i think you need more coolant or air in system. how long since you change the T-stat. or even a new rad cap.

 

[WradDad]

Yeah, I'm thinking rad cap. I seem to have to replace mine every year.

 

[Robertwav1]

If you have a boiling sound, you have air. As suggested turn the heater on and bleed the system again.