I have a 92 Explorer and it is making this strange whinning or whirring sound. I thought that it only happened when I put on my brakes and came to a complete stop, but now I have found out that it make the noise while in park with the engine running. It doesn't seem like it is really in the engine more like under it. I can really hear it on the inside with the windows up. If anyone can help identify the probelm I would really appriciate it.