2007 Pontiac g6 Just put antifreeze in for the winter. It's making a loud grinding like noise and starts getting hot. It lasts for a minute or two then stops for a minute and does it again
The way I understand it, the car starts to overheat - then there's loud noise and the temperature goes down. The noise is periodic. Is this correct?
This is likely related to the cooling fan - either the shroud is bent, foreign object stuck between the fan and the shroud, or the fan bearing is gone.