If you mean after you filled it with coolant, then jack up the front of the car, fill the radiator slowly,run the engine until it is at the normal temp. then let it sit overnight, refill the next morning. Should be all set. Reason - air rises to the highest point.
there should be a air valve on the engine that you can bleed the bubbles out of the cooling system.
If the cooling system is in good working order the system will bleed the air out itself. If the system has a leak anywhere no matter how small the system will never bleed the air out.
Engine cooling system is not a closed system you can't remove the air.
Cut it's throat!
You'll need a vacuum pump that is used by AC service technicians.
On top of the thermostat housing is a bleed valve. Loosen the top nut first, this will bleed it. There is another one on the radiator, but I haven't found it yet.
It is a brass fitting on the top of the thermostat housing.
Make sure antifreeze level is not low. And also "bleed" air from the cooling system. Look for bleeders where water hoses enter the engine. (might be one right on the thermostat housing).
There is no reason to ever bleed a cooling system.
Any time you flush out the cooling system you need to bleed the cooling system.
How do you bleed the cooling system of a 1988 acura legend? Is there a bleeding screw and where is it located?
there is a bleeder valve just behind the water pump. it takes a 1/4 inch socket or wrench. start the engine then loosen bleeder this will allow the fluid though your system. when you get fluid coming out without air you should be set. good luck.