It sounds like its coming from the front of the car.
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2009 Honda Pilot Question: Why is there a rattling noise when going over small bumps?
Answer #1tdtoolbox March 31, 2013, 21:34Journeyman
something is loose you need to crawl under and look start but the muffler
Answer #2csubak30 March 31, 2013, 23:56Master
Could be a loose heat shield. If this is the case a quick weld job can fix it.
Answer #3arturo08 April 01, 2013, 03:43Master
have front end suspension and steering components inspected.