You usually need to remove the tank to pour the old out or have a suction device to drain it out.
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Just adding to the answer :
I use a cheap plastic turkey baster that I bought at Wal*Mart
( it doesn't take as long as I thought it would )
how do I replace my 2005 fiesta expansion header tank
Coolant is old.
through the reserve tank which is also called the overflow tank being that there is no radiator cap!
The "check coolant level" message will come on when the coolant level is low in the overflow tank. If the message stays on after the tank is filled, make sure the sensor on the front bottom is connected. If the connection is O.K., then lightly tap on the side of the overflow tank with a soft rubber mallet. If the message persists after driving the car a couple of days, replace the 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.
red
in the overflow tank
Its either in the coolant overflow tank or in the side of the radiator
The overflow tank is either cracked or its overheating and leaking from the cap
The overflow tank for coolant will "boil" if there is air getting in the coolant chamber. This can be a head gasket going bad.
Add it in the overflow tank up to the max line.
coolant overflow/reservoir tank