# Buzzing noise when accelerating

**URL:** <https://community.cartalk.com/t/buzzing-noise-when-accelerating/76078>\
**Category:** Maintenance/Repairs\
**Tags:** civic, honda\
**Created:** [December 12, 2012, 12:48am UTC](https://community.cartalk.com/t/buzzing-noise-when-accelerating/76078 "2012-12-12T00:48:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Riz](https://avatars.discourse-cdn.com/v4/letter/r/71c47a/32.png) [@Riz](https://community.cartalk.com/u/Riz)\
**Post date:** [December 12, 2012, 12:48am UTC](https://community.cartalk.com/t/buzzing-noise-when-accelerating/76078/1 "2012-12-12T00:48:30Z")

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I have an '08 Civic Mugen and recently replaced my HID’s. Soon after I noticed a buzzing noise that gets louder as I accelerate.

Please help…

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [December 12, 2012, 4:44am UTC](https://community.cartalk.com/t/buzzing-noise-when-accelerating/76078/2 "2012-12-12T04:44:40Z")

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Disconnect the HID’s and see if the buzzing goes away. If it does it could be a weak alternator or the wrong HID’s. A good, independent mechanic can fix your problem quickly.

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**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\
**Post date:** [December 12, 2012, 9:00am UTC](https://community.cartalk.com/t/buzzing-noise-when-accelerating/76078/3 "2012-12-12T09:00:09Z")

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Maybe the buzzing is a rattling heat shield on the exhaust. You say this buzzing started “soon after” without saying how soon and an exhaust rattle can start at anytime.