1992 Grand Am Overheating

[LaBoy22]

I have a 1992 I recently had to replace the water pump , because it went out. ever since i replaced it It still has been over heating so i removed the thermostat and the over heating stopped for a few days now it has started over heating again. Can anyone please give any ide at what is going on?

[danjag1]

Did you get all the air out of the system when you refilled the radiator after replacing the water pump?

[LaBoy22]

How do I get the air out of the sytem?