humming that intensifies with rpm. rattling that begins at higher rpm

2006 DODGE CHARGER
131,000 MILES
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VZIELKE
  • MEMBER
  • 1 POST
I was driving and hit some debris in the road that rattled around under my car. And instantly there was a humming noise that started that intensifies with acceleration and when i get to about 2 or 3 rpm a rattling noise starts. I was wondering what it may be.
Oct 24, 2013 at 12:23 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Check the exhaust system. Something may have come loose or apart. Also, use a rubber mallet and tap on the muffler and catalytic converter to see if there is anything loose as well as check heat shields.
Oct 24, 2013 at 12:29 AM
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