# Accord Exhaust Noise

**URL:** <https://community.cartalk.com/t/accord-exhaust-noise/6076>\
**Category:** Maintenance/Repairs\
**Created:** [October 17, 2007, 5:30pm UTC](https://community.cartalk.com/t/accord-exhaust-noise/6076 "2007-10-17T17:30:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![MathewD](https://avatars.discourse-cdn.com/v4/letter/m/d2c977/32.png) [@MathewD](https://community.cartalk.com/u/MathewD)\
**Post date:** [October 17, 2007, 5:30pm UTC](https://community.cartalk.com/t/accord-exhaust-noise/6076/1 "2007-10-17T17:30:12Z")

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I have 1994 Honda Accord with an automatic transmission. At around 2800 rpms and up there is an annoying groan from the exhaust system at a steady or increasing throttle. There are no exhaust leaks. One mechanic called it a harmonic resonance problem. I found info. on Accord exhaust noises in the 1800 to 2400 rpm range but not for 2800 and up. Any ideas?

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**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\
**Post date:** [October 17, 2007, 5:47pm UTC](https://community.cartalk.com/t/accord-exhaust-noise/6076/2 "2007-10-17T17:47:06Z")

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I’m going to agree with your mech.

Aftermarket mufflers and exhaust systems have proven to be a source of a resonance problem occurring at a number of rpms. Not just Hondas either.