Hope someone can help, I have an 01 gts. Once in a great while, the temp gauge will creep up close to 250 the quickly lower to 170/190 range. Twice it has blown the coolant out of the over flow under the right headlight. I have changed the thermostat and tried my best to bleed the air. The car has 9500 miles, never raced and stock except K&N and corsa cat back