Why antifreeze is boiling

I epoxed the hole and the leak ceased. When I started and ran the van for a while I noticed the reservoir coolant boiling along with some gurgling sounds. Turned the van off, cooled it down, topped of the coolant and started it back up.

Reservior still boiled but van was not over heating yet. Could not detect any leaking this time. Fan worked fine too. Still detected no further leaks but coolant in reservoir still boiling. Can air in the system make that happen or is it the gasket? The head gasket. That would indicate a blown headgasket. Of course the head could be cracked. Rod, the OP asked for our opinions, not just yours.

I was adding a bit of clarity to your suggestion. Why are you trying to start an argument? Thanks guys. I suspect it is the head gasket but I hope it can somehow be an air bubble. Will find out soon. Garages tend to try and rip me off far too often. Usually when that happens it leaks too. With no leaks, it does sort of sound like a head gasket problem unfortunately. But no need to guess. This product is a crucial component of the cooling system, as it helps the car operate in a variety of temperatures, from the frigid cold to the scorching heat.

Most of the time, engine coolant is made of a combination of water and ethylene glycol C2H6O2. Why does this happen? Well, when water freezes, it expands and crystallizes. If we add chemicals to water, however, the molecules will have to work harder to join together and crystallize. Their struggle results in a lower freezing point.

So in the end, inexpensive water and functional coolant form the perfect pair. It also runs through the radiator, dissipating heat to the outside air.

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Why is my Ford Taurus Overheating? Why is my Ford Taurus shaking? Why is my Ford Taurus smoking? Why wont my Ford Taurus come out of park? Contact Us. Amazon Disclaimer. Terms and Conditions. Privacy Policy. Repaired Vehicles. What is making my car coolant boil? But remember that your engine is substantially hot and needs to be cooled down to continue working correctly. What should I do if my coolant is boiling?

Is it bad for my car to have the coolant boiling? How can I fix the coolant from boiling? How can I prevent the coolant from boiling in the future?

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