I have a 2013 SV with 113k miles. The last two weeks I have been hearing a bumping, knocking from under the front end when driving over the slightest rough or uneven road. I crawled under there this weekend and checked around from front to back and found nothing apparently loose. I did not however remove the front splash pan. Could it be my sway bar bushings worn? Just had the vehicle safety inspection done three weeks ago and it passed and they do check the front end ball joints in this state of Massachusetts so I doubt that is the problem. Thanks for any ideas/suggestions.