Car sounds like revving high but RPMs are normal

Tiny
SVEBOGRND
  • MEMBER
  • 2006 PONTIAC G5
  • 113,223 MILES
Whenever I get up to 40kmph its sounds like my car is revving way higher than it should be but the rpms are normal and the revving doesnt stop until I get below that speed again. Also the faster I go the louder it seems to get even after I switch gears, which I have no problems doing. Everything is working normally, no noticeable difference in any handling or gear switching or anything, just the noise. 2.2 ltr 4 cylinder standard trans.
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Friday, April 20th, 2012 AT 5:32 PM

2 Replies

Tiny
ASEMASTER6371
  • EXPERT
Hello,

This sounds like you have a plugged catalytic converter but to confirm the issue lets follow this guide to fix the failure.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please let us know what you find.

Cheers
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Friday, April 20th, 2012 AT 10:58 PM
Tiny
FERRARI004
  • MEMBER
I had this problem as well the dealer replaced the catalytic converter for $780.00. I think I could have got it cheaper at an Independent garage.
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Monday, May 14th, 2018 AT 12:10 PM

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