I have a 95 honda civic ex and having trouble with it overheating the radiator is no more than 3 months old I don't know what the prob. Is the other day it diddnt show it was getting hot but when I opened the hood it was like bubbling and fizzing where the cap is at on the radiator??

See if this link helps:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563-3.html#post235973