Need help with this overheating problem. I pulled the thermostat and it was indeed broken. The copper shaft separated. No problem odered a replacement, installed and no workee. Car overheated again, seems like the new thermostat is not opening. Also, the heat did not work with the new thermostat in. I removed the thermostat and let the car run. No overheating and heat worked fine. Is my water pump bad? whats the possibility of another bad thermostat (highly unlikely) Im in Japan, so it takes about a week to get parts here from the states. Any help would be greatly appreciated!