How to exhaust Buick Hideo GT water tank?

When the water tank is normally filled with coolant or replaced, there is no need to exhaust air.

The method of exhaust is as follows: exhaust must be carried out when the engine is cold.

When the antifreeze temperature is high, open the water tank cover or drain valve to avoid scalding.

First, drain the exhaust screw on the throttle side.

Add water until the water is ejected from the vent hole, and then install the screw.

Then start emptying the exhaust hole on one side of the booster pump.