humming noise?

[wart52]

hey guys i just started my truck this morning and it has set all week. when i did i heard a humming noise that sounded like the turbo was spooling up like i was applying the throttle which i was not it seemed to do it worse when in gear while i was still holding the brake. is this normal after sitting all week in the tempatures that we have had in the midwest this past week or does anyone know if i have something else going on? thanks for any advice in advance

[rt_hawk]

Need more info...did it go away? What made it worse or better??

[wart52]

what ever it was it went away after it warmed up thanks though