ive been having a loud whining sound from my truck and I think it is the fuel pump. the truck runs great and seems like it has good fuel pressure. What would make the pump be so loud. Ive driven several powestrokes and the pumps were never this loud when I turn the key to the On position.

I also have a link to this fuel pump on ebay, anyone know if it is any good or have a link to a good pump that is not several hundred bucks?
Thanks again.
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