Coolant boiling

[gabkwong]

After a normal drive from work on warm days, I notice gurgling sound from under the hood and the coolant was bobbling in the reservoir when I park the car. The temp gauge was always below the middle mark and never ran hot. Is it the thermostat? What do you think?

Thanks,
Gab

[sammm]

I've heard mine gurgling before after it has been parked. That's when the car gets hot. No more fan(s) or air moving across the radiator. That's why there's a hot and normal line on the overflow bottle.

[gabkwong]

So, it is perfectly OK as long as I am not runing hot?!

[POS Racing]

What do you think?

Time for a new radiator cap.

[channelmaniac]

Time for a new radiator cap.

+1

[gabkwong]

I replaced the radiator, cap, hoses and the thermostat just 18 months ago!