I have a humming/whinning noise coming from my dodge. The noise doesnt start until the vehicle gets warm. Sounds excellant when its cold. It sounds to be coming from under the floorboard towards the back of the engine/bottom. This motor only has 29,000 on it and I cannot figure it out. The belt was taken off and the truck was run without the belt and the noise still persisted. The cats and y pipe were changed and that did not solve the issue. The noise is there whether or not the truck is in gear or in park. I dont belive the sound gets any louder when driven as it is hard to tell. Anybody have any ideas? I am so stuck with this problem. Thank You.