I drove into the city last night and I'm driving a bit aggressive on the way there . When I went to park my car, I turned my music Down and heard a grinding noise coming from under the hood. I opened the hood an told my girl to step on the gas and it would grind. Sounded like it was coming from the engine when I thought it might have been a belt. So she stepped on the pedal again and t sounded even louder when she would turn the steering wheel. So I turned the car off, hung around for a few hours and when I got back to my car, the noise was gone. What could it be

 

Maybe power steering pump O-ring issue. Check for air bubbles in pump.

 

^+1