# 2012 Toyota Yaris - Odd noise from exhaust

**URL:** <https://community.cartalk.com/t/2012-toyota-yaris-odd-noise-from-exhaust/175623>\
**Category:** Maintenance/Repairs\
**Tags:** toyota\
**Created:** [March 11, 2021, 10:07am UTC](https://community.cartalk.com/t/2012-toyota-yaris-odd-noise-from-exhaust/175623 "2021-03-11T10:07:02Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![asandacele](https://avatars.discourse-cdn.com/v4/letter/a/858c86/32.png) [@asandacele](https://community.cartalk.com/u/asandacele)\
**Post date:** [March 11, 2021, 10:07am UTC](https://community.cartalk.com/t/2012-toyota-yaris-odd-noise-from-exhaust/175623/1 "2021-03-11T10:07:02Z")

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My car started making a weird noise when I pressed on the accelerator. the sound comes and goes but worries me. I was told that it’s a problem with my exhaust as it may be blocked somehow. could it be the exhaust?

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**Author:** ![PvtPublic](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/pvtpublic/32/13089_2.png) [@PvtPublic](https://community.cartalk.com/u/PvtPublic)\
**Post date:** [March 11, 2021, 10:38am UTC](https://community.cartalk.com/t/2012-toyota-yaris-odd-noise-from-exhaust/175623/2 "2021-03-11T10:38:38Z")

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I’d check for a loose exhaust heat shield first.

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [March 11, 2021, 5:20pm UTC](https://community.cartalk.com/t/2012-toyota-yaris-odd-noise-from-exhaust/175623/3 "2021-03-11T17:20:57Z")

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Describe the sound- is it a rattle, like sheet metal parts bouncing off each other? Then @PvtPublic is probably right, a simple fix. I don’t understand how a blocked exhaust would make a sound that comes and goes - who told you that?

I’d take it to a trusted independent mechanic, they should be able to figure this out quickly. Ask around, check ratings, etc. Don’t go to a chain (oil change or muffler, etc.).

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [March 11, 2021, 5:26pm UTC](https://community.cartalk.com/t/2012-toyota-yaris-odd-noise-from-exhaust/175623/4 "2021-03-11T17:26:42Z")

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> [@texases](#):
>
> Describe the sound- is it a rattle, like sheet metal parts bouncing off each other? Then @PvtPublic is probably right, a simple fix. I don’t understand how a blocked exhaust would make a sound that comes and goes - who told you that?

A catalytic converter with a broken substrate might cause an intermittent blockage, as well as a rattling noise.