Hello dodgers. I have recently run into a good amount of problems with my 2014 Dodge Challenger 3.6L. It hast started to overheat. I changed the thermostat on it and that seemed to do the trick and 800 miles later it started overheating again. I have since changed the coolant redivide tank cap and bled the air out of the cooling system. I don’t think it’s the water pump because I would have had a much worst out by now seeing that it’s has been going on for about a week today. I did hear a strange whistle sound where my my coolant resivour and hose connect to the engine. Does anyone have any idea what it could be any help would be greatly appreciated.