Hole in muffler

2007 CHEVROLET IMPALA
121,000 MILES
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STEVIE12
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I have a hole in my muffler right where the pipe comes in. will that make my car hard to accelerate?
Apr 15, 2017 at 1:54 PM
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STEVE W.
  • ✓ASE Certified Mechanic
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Should not make any difference. Where a hole would cause problems is before the converter or in front of the rear O2 sensor.
If you have a problem with acceleration it could be a plugged converter or exhaust system. For that an exhaust back pressure test would show you if it is the case.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
Apr 15, 2017 at 3:50 PM
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STEVIE12
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Thank you Steve W.
Apr 15, 2017 at 4:26 PM
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STRAILER
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Steve W. is one of our best! :)

Please use 2CarPros anytime, we are here to help and tell a friend.

Best, Ken

Apr 18, 2017 at 11:51 AM
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