You may have air in the coolant system.
To bleed it allow the car to cool and remove the radiator cap. Turn the heater setting all the way hot. Allow the car to reach operating temprature and then top off radiator and reserviour with a 50/50 mix of anti-freeze and distilled water.
Also replace the radiator cap.
Thursday, January 3rd, 2013 AT 12:12 PM