2000 Chevy Blazer catalayc converter

2000 CHEVROLET BLAZER
128,000 MILES • 6 CYL • 4WD • AUTOMATIC
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MAURERC86
  • MEMBER
  • 1 POST
I recently have been experiencing a noise coming from my catalayc converter. Whenever my car is idling or driving at a low speed it rattles. I looked at it when car was off and when i hit it with my fist it rattled just as if my car was on. Does this mean i need to replace it or does it mean something is loose?? everything is welded so i'm not really wanting to replace it if not needed.
Feb 14, 2008 at 9:43 AM
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MASTERTECHTIM
  • ✓Experienced Mechanic
  • 4,750 POSTS
if it is rattling inside then you have to replace it. make sure it is not a heat shield close to it.
Feb 14, 2008 at 9:55 AM
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