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Originally Posted by Chaz526
I have a similar issue with my 07 SR5 - slight buzzing in the steering wheel/column at highway speeds (70+). Curious if anybody found a cause and solution.
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Is there any difference in 2WD or 4WD? It could be associated with front drive parts if it only happens in 4WD. I can hear some whine from the front diff on mine, but it's fulltime, so I can't switch it to 2WD so I can't test for sure.
Is it related to vehicle speed, or engine speed? Try driving at a constant speed, but shift to 4 or 3 and see if the vibration changes.
An unbalanced tire will usually shake, not hum or vibrate. It wouldn't hurt to make sure your tire pressure is about the same on all four wheels, though.
I can feel some vibration through the steering wheel, it just feels like I'm feeling the roughness of the road. It feels like it's proportional to wheel speed. But my tires are very quiet, so I can't blame it on them. It seems like some amount of vibration through the steering wheel is normal on these, but if it's loud or uncomfortable it could indicate a problem.