01-28-09, 08:18 PM
2000 Catera with 120K miles on it, engine has 40K, car runs strong and after fixing the silly multi-function relay it has had very few issues, until now that it has gotten cold outside. I have noticed that the car is running very cold. It might hit the half way point on the temp gage and then the temp gage will drop to the bottom. The temp of the air blowing out of the heater matches the temp gage so I dont think the gage is wrong. Think the thermostat has died or is some other direction I should look?