Hole in catalytic converter causing poor mileage

Tiny
JESSYO3264
  • MEMBER
  • 2006 BUICK LUCERNE
  • 3.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 188,000 MILES
My catalytic converter has a hole in and it sounds awful. How it got there I am not sure. I need to know if I am getting less gas mileage then normal, my gas hand does not work so I am having more difficulty knowing.
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Friday, July 27th, 2018 AT 2:03 AM

1 Reply

Tiny
DANNY L
  • EXPERT
Hello, I am Danny.

Yes, I am sure having your defective catalytic converter will be causing you to get worse gas mileage/MPG. I am surprised your check engine light is not on. I would suggest replacing the catalytic converter to restore your vehicle's performance, get better gas mileage, and to be able to pass a smog check if applicable. Hope this helps and feel free to ask any questions if needed. Thanks for using 2CarPros.
Danny-
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Friday, July 27th, 2018 AT 3:16 AM

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