So you "thought" but didnt research. Thats your first mistake. If you don't know what it means to bleed the system then you need to do research.
Start here
http://www.clubcivic.com/forum/search/
I suggest you flush your entire coolant system, meaning the radiator and the engine block. You might have a blockage. Research what that means because you need to know and learn how to research about what you dont know. This site is already loaded with all the information you need before asking any questions. Do that then get back to us.
Also, a "helpp" title does nothing to encourage knowledgeable assistance from most members, so I changed it for you. In the future write useful titles that are short & to the point. Dont forget to include your car info either, as you did here.