No, it's not your water pump. That would get louder as the engine revs higher, not as the car's speed increases.
This sounds like your wheel bearing. It sounds like an airplane engine ready for take off.
You need to have that replaced as soon as possible. I've seen entire wheels pop off on people as they roll down the highway. You don't want this to happen to you.
If I've helped you, please vote for me, as I depend on this to pay my bills. Thanx, Ernest.
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Sunday, January 24th, 2010 AT 4:09 PM