Front and/or rear sway bar end links may wear out prematurely, causing a knocking noise from the front or rear of the vehicle when driving on bumpy roads. Our technicians recommend inspecting the links at each service, they should be replaced if any looseness is found.
Knocking Noise Over Bumps Due to Worn Sway Bar Links on Volvo XC70
Average mileage: 119,895 (92,500–150,000)
8 people reported this problem
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Knocking sound every time I go over bumps.