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Why does coolant overflow the expansion tank only after you turn the car off?
Wiki User
∙ 13y ago
This might be the result of an increase in coolant temperature. Once the engine stops the coolant is no longer being circulated and cooled by the radiator but it is still picking up residual heat from the engine. Heated coolant expands and can sometimes overflow.
You might also have a bubble of air in the system. Try bleeding it. Or maybe the check valve in the pressure cap is bad.
Wiki User
∙ 13y ago
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How do you replace the coolant overflow tank?
how do I replace my 2005 fiesta expansion header tank
Why is there sludge in coolant overflow tank?
Coolant is old.
What is an overflow tank?
An overflow tank is a bottle that holds coolant that expands and leaves the radiator under driving conditions. The Coolant will go back into the radiator as needed.
What color is sludge in a coolant overflow tank?
red
What is a expansion tank on a car?
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.
How do you add coolant to your 2001 Kia Spectra?
in the overflow tank
Where is the low coolant sensor on the 1999 Z34?
Its either in the coolant overflow tank or in the side of the radiator
What does it mean when coolant in overflow tank is low and is leaking antifreeze from that side of the car?
The overflow tank is either cracked or its overheating and leaking from the cap
Does water in the reservoir circulate through radiator when engine runs?
No. When the engine is running coolant is heated and expands. Excess coolant then flows from the radiator to the expansion (overflow) tank. When the engine is shut down coolant cools and contracts drawing fluid back out of the tank to keep the radiator topped off.
Why is your antifreeze tank boiling?
The overflow tank for coolant will "boil" if there is air getting in the coolant chamber. This can be a head gasket going bad.
How do you add coolant?
Add it in the overflow tank up to the max line.
Oil in coolant overflow tank?
Usually a blown head gasket.
