Question about 2001 Pontiac Montana
If the brakes are fine, try rotating the wheels.
The tires it self could have a bad belt in it and have a soft spot. Try putting the front tires to the rear and the rear to the front, double check the tire pressure and see if the vibration go's away.
If the vibration is still there then the tires are good and it's the brake rotor or worn steering parts and or needs a wheel alignment. As the front end drops the toe-in changes geometry and may just be out enough to cause the wheels to vibrate.
Good luck and hope this help. I fine the brake rotors inexpensive enough at a parts store that it's better to change them rater then have then turned to a smooth surface again. If your handy try changing the rotors with new one's. Auto Zone has the parts and would give the step by step instructions to do the job.
Posted on May 12, 2009
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Posted on Jan 02, 2017
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