When I brought my car in I knew already the issue, but without a place to do the small repair myself, I brought it to the dealership. Having a loose bolt can usually go missed, but when that loses bolt is part of the heatsheild assembly protecting the exhaust system the result is an obnoxious vibration.
Simply telling the maintence tech with the issue with the car and asking for a tire rotation results in quick repair and service.
Knowing your car really helps with all future needs and repairs.
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