What are you trying to solve by looking at the wheel weights? The fewer on any wheel, the better. That has nothing to do with any kind of noise. An out-of-balance wheel will cause a thumping vibration at highway speeds.
If the noise you're hearing sounds like an airplane engine, the most common cause is a noisy front wheel bearing. That is not a serious problem but it will have to be replaced.
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Saturday, February 23rd, 2013 AT 10:18 PM