Sounds like a rock on 2007 Toyota 4Runner

Can a rock or pebble become lodged in the undercarriage? I hear a rolling rock sound under the passenger side floorboard sometimes when I brake.

by in Portland, OR on January 08, 2010
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1 answer
ANSWER by , January 15, 2010
it could be a breaking up Catalytic Converter, which is some what common on 4-runners.