only when you refill it :
I am going to assume this in a automobile : however even if not the response would be about the same :
Once you re-add the liquid to the unit , keep the cap open and begin your circulation device or start your engine : you will observe the liquid level drop as it moves and air begin to rise toward the opening:
Air trapped inside can cause the liquid to rise and exit the open cap area: expect that to happen : place a drain pan or near that opening.
this process of releasing trapped air : always allow a minimum of 8 minutes per liter to flow .
i flush the radiator filled it with antifreeze water .. now i heard i should take out air from inside of radiator or hoses so the air will not block circulation of the water? thank you.
Remove The Radiator And Have A Radiator Shop Test, And Flush It.
Replace, flush, or repair, depending on what the problem is.
If the problem your having is in your 'cooling system' , flushing it out could help out a lot.
Just flushing the radiator, no but to flush the system, yes.
there is a radiator plug on the bottom passenger side of the radiatior, take that out and flush from the radiator cap.
Cleans antifreeze and dirt out of the radiator
can crack the engine.
To flush a Toyota Previa radiator, first drain the antifreeze in the radiator into a bucket. This is done by turning the valve at the bottom of the radiator. Close the valve and add a radiator flush product purchased at an automotive parts store. Follow the directions on the bottle of flush. This usually means running the vehicle for a certain amount of time and then draining the radiator again.
Sounds like you need to flush the radiator and replace the thermostat
yes you do cuz if you dont you will not get the air pockets out and then your radiator fluid could be to low no
the problem you arehaving isn't with the transmission its with your radiator it has a crack in the side where transmission lines hook to you need a new radiator and id also do a complete transmission flush to explain whats it is your coolant is mixing with the transmission fluid in the radiator replace your radiator and you problems are gone after you flush the transmission that is id do that before i put the new radiator in if i was you