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As the engine coolant heats up, the coolant expands, so the coolant needs a reservoir or expansion tank to flow in and out of as needed.

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Q: What is a expansion tank on a car?
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Can you run a car without a expansion tank?

You can operate a car without an expansion tank but it will most likely drip engine coolant onto the road when the motor heats up.


Could the expansion tank cause the car to overheat?

Yes it could


How does expansion tank work?

the operation of a expansion tank?


Is an expansion tank required for a tank less water heater?

No, an expansion tank is not required.


Why does the expansion tank steam but the car is not running hot?

it could be that it's a little over full


Why would you be losing water from the expansion tank on your car?

i take it you are talking bout expansion tank on a/c this is evaporation and is common on all vehicles if you are talking bout expansion tank on radiator, you have either got to much coolant in radiator,(check level when cold) or you have an air lock in the cooling system and need the system bled to remove air


Why is my Vauxhall frontera heater not hot enough?

Have you checked the water level in the coolant expansion tank, if low this will not heat up the car. If level ok maybe thermostat is stuck Have you checked the water level in the coolant expansion tank, if low this will not heat up the car. If level ok maybe thermostat is stuck


What does an expansion tank do?

Allows for expansion and contraction of various systems


Is there a radiator cap on the 1995 ford contour v6 or is it just the expansion tank?

It is just a expansion tank. Henry


How does the ignited mixture of gasoline and air in a car's engine use thermal expansion to move a piston?

motor conected to fuel tank


Why water boils in expansion tank?

There shouldn't be just water in the expansion tank. If the coolant (50% anti-freeze and water) appears to be boiling in the expansion tank, you may have a bad head gasket or cracked head.


What is the purpose of main engine fresh water expansion tank?

to circulate water in fresh water tank to expansion talk.