Rattling at 3000 RPM

Tiny
STRICKENEAGLE
  • MEMBER
  • 2001 HONDA CIVIC
  • 146,000 MILES
Have a Civic Ex and about a week ago I was in a rush and I was driving pretty fast and after that I started noticing this rattling noise it sounds like its coming from below the car in the front somewhere. I only really hear it when I stomp it or around 3000 rpm. I just had the resonator cut off and a new cat back muffler put on but I dont know if that has anything to do with it. I was wondering if it could be the catalytic converter cause this car came from up north so the cat is really rusty. Thanks
Saturday, August 20th, 2011 AT 10:49 PM

1 Reply

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
It's probably something(loose) in the exhaust system either internal or external that triggers at rpm or load. Could be as simple as a loose heat shield. Could be a clamp let loose? Best thing to do might be to raise and get under while ya rev it?
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Saturday, August 20th, 2011 AT 11:33 PM

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