today when I turn my car off I heard this noise coming from somewhere in front of the engine and it sound like a helicopter. I turn the car back on and turn it off again to see if I would hear the same sound again but nothing so i drove it around and turn it off but nothing again and this is the first time I hear this sound.
so what you guys think it is? I am thinking is a fan but dont know which, I am not 100% sure is a fan since I was inside the car when I heard the noise.
correct me if I am wrong but when you turn off the car the only thing still spinning is one of the fan or both? I dont think this has to do with belts?