My sister has a 2000 model Mustang Convertable that has a thump sound that seems to come from under the driver's side floor board when she takes off or hits a bump. They have looked all over under it and can't find anything loose. Any have any idea what this sound could be coming from?
Thanks in advance
John
On a couple of cars that I owned a few years ago, it was caused by the emergency brake cable. There was a rubber doughnut on the cable to soften the blow, and the thump was the doughnut hitting the floorboard.
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