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It means you may have a stuck thermostat or worse, a blown head gasket or a cracked head.

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โˆ™ 2013-09-08 03:27:49
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Q: What does it mean if water boils back into overflow tank and car over heats?
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Why do boils come back in the same spot?

your fat

How does the overflow tank work?

if your water/antifreeze gets to hot it pushes out the over flow tube into the overflow container, as it cools down it will suck it out of the overflow and back into the radiator.

What happens when the sun heats ground water?

When the sun heats ground water it evaporates into the atmosphere, then it condensates back into droplets, and then falls as rain back into the ground. It is a never ending cycle and is quite unique.

What does an overflow container do?

An overflow container prevents coolant loss. As coolant heats it expands. Without the tank, excess coolant would be forced from the radiator and be dumped on the ground. As coolant cools it is drawn back into the radiator so it always stays full.

Does water disappear when it boils?

after a while it disappears because of evaporationAnswer:Water does not disappear when it boils. It changes state from a liquid to a gas and diffuses into the air. The gaseous water can be cndenses back into a liquid.

Is tap water distilled water?

No - distilled water is the vapour given off when water boils, which has then been condensed back into a liquid.

When coolant coming out of 1999 alero from overflow and leaking water pump replaced water pump but still comes out of overflow could it be thermostat?

Could be thermostat not opening causing a back pressure

How do you overflow a toilet?

by clogging it and then taking the stopper out of the back and it will flush continously and it will overflow.

How does aquarium Overflow work?

An overflow is a box that hangs on the back of the tank (or is sometimes built in) and allows the water to "overflow" to a wet/dry filter (the tank sized filters people have underneath their tanks). The overflow has a U shaped tube that allows water to siphon from the main tank into the overflow box. The overflow box then drains the water down a tube to the wet/dry filter continuing the siphon by pulling the water as it drains. If you are going to purchase on, they should come with instructions. is a good place to learn about all types of fish related things.

What is an overflow tank in a vehicle for?

It has a tube between itself and the radiator. As coolant heats up, it expands. The expanding coolant goes through the tube into the overflow tank. Later, when the vehicle is shut off and the radiator cools, the overflow is pulled back into the radiator. The system is "closed", hence the coolant does not just "dribble away" when it expands like it did in vehicles many years ago.

Radiator keeps blowing water back over heats?

bad thermostat or bad heat gasket

How does a radiator overflow tank work?

When the fluid in the cooling system heats up, it expands, causing the pressure to build up. The cap is the only place where this pressure can escape, so the setting of the spring on the cap determines the maximum pressure in the cooling system. When the pressure reaches 15 psi, the pressure pushes the valve open, allowing coolant to escape from the cooling system. This coolant flows through the overflow tube into the bottom of the overflow tank. This arrangement keeps air out of the system. When the radiator cools back down, a vacuum is created in the cooling system that pulls open another spring loaded valve, sucking water back in from the bottom of the overflow tank to replace the water that was expelled.

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