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Q: Sounds like bottom is falling out when driving car.

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Loud rumbling noise from under neath the car when driving. What could it be?

My car has 1760000 miles.
My car has an automatic transmission.

Hi there. A noise under the vehicle is very difficult to diagnose without completing a test drive. It is very possible that you have an exhaust leak, a loose exhaust bracket or a perhaps a loose stabilizer bar bushing. In order to correctly diagnose this issue, it is best to have a professional mechanic come to your location and complete a car is making a noise inspection.

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