# Should I replace the cat converter for 1999 Toyota Avalon?

**URL:** <https://community.cartalk.com/t/should-i-replace-the-cat-converter-for-1999-toyota-avalon/139147>\
**Category:** Maintenance/Repairs\
**Tags:** avalon, toyota\
**Created:** [April 24, 2019, 4:27pm UTC](https://community.cartalk.com/t/should-i-replace-the-cat-converter-for-1999-toyota-avalon/139147 "2019-04-24T16:27:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![patsytilley](https://avatars.discourse-cdn.com/v4/letter/p/439d5e/32.png) [@patsytilley](https://community.cartalk.com/u/patsytilley)\
**Post date:** [April 24, 2019, 4:27pm UTC](https://community.cartalk.com/t/should-i-replace-the-cat-converter-for-1999-toyota-avalon/139147/1 "2019-04-24T16:27:14Z")

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should i replace a cat converter on a 20 year old toyota avalon

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [April 24, 2019, 5:57pm UTC](https://community.cartalk.com/t/should-i-replace-the-cat-converter-for-1999-toyota-avalon/139147/2 "2019-04-24T17:57:43Z")

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Only if it is bad.