Whistling Noise

I have just purchased a 2007 Honda Accord EXL with 6,000 plus miles on it. While driving, with and without the A/C, there is a whistling noise coming from the engine. Anyone know what is causing this?

No idea what’s causing the noise, but the car is still under warranty so the dealer should take care of the noise at no charge to you.

Does the noise coincide with any particular speed or set of circumstances?

Are you sure it’s an engine noise and not a wind noise?