I need help. My fan is really loud while the engine is running. I also have a check engine light. Diagnostic tool at autozone said it was the coolant. Engine is not hot. Mileage on my car is 37000miles. 2012 cruze. How do I make the noise dissappear.

 

what was the actual code? p0??? the autozone scanner definitions are a joke. More than likely coolant temp sensor related if theres no other issues