What is the problem if your minivan starts vibrating when it reaches 40 mph?

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Depends on if it's front wheel drive or all wheel or rear wheel drive. If the vehicle has a driveshaft the U-joints could be failing and that would cause qute a vibration. It could also be a bent wheel or a tire that is out of balance.

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First answer by Redbeard. Last edit by ID2895531452. Question popularity: 9 [recommend question]

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