# 2021 Hyundai Sonata - Loud engine

**URL:** <https://community.cartalk.com/t/2021-hyundai-sonata-loud-engine/176714>\
**Category:** Maintenance/Repairs\
**Tags:** hyundai, engines\
**Created:** [May 10, 2021, 10:14pm UTC](https://community.cartalk.com/t/2021-hyundai-sonata-loud-engine/176714 "2021-05-10T22:14:05Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![maynooth](https://avatars.discourse-cdn.com/v4/letter/m/7cd45c/32.png) [@maynooth](https://community.cartalk.com/u/maynooth)\
**Post date:** [May 10, 2021, 10:14pm UTC](https://community.cartalk.com/t/2021-hyundai-sonata-loud-engine/176714/1 "2021-05-10T22:14:05Z")

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excessive engine lifter noise when starting untill 3 minutes warmup

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**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\
**Post date:** [May 11, 2021, 12:06am UTC](https://community.cartalk.com/t/2021-hyundai-sonata-loud-engine/176714/2 "2021-05-11T00:06:37Z")

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Good thing it’s under warranty,

What does the dealer say?

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [May 11, 2021, 12:25am UTC](https://community.cartalk.com/t/2021-hyundai-sonata-loud-engine/176714/3 "2021-05-11T00:25:39Z")

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Wanna bet the dealer will say “they all do that”?

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**Author:** ![davepsinbox\_157004](https://avatars.discourse-cdn.com/v4/letter/d/73ab20/32.png) [@davepsinbox\_157004](https://community.cartalk.com/u/davepsinbox_157004)\
**Post date:** [May 11, 2021, 12:39am UTC](https://community.cartalk.com/t/2021-hyundai-sonata-loud-engine/176714/4 "2021-05-11T00:39:01Z")

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> [@Purebred](#):
>
> Wanna bet the dealer will say “they all do that”?

That’s a sucker bet. To the OP: If you do, in fact, hear that line, insist on driving another 2021 Sonata to see for yourself because I call “Bull” in advance.

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [May 11, 2021, 2:00am UTC](https://community.cartalk.com/t/2021-hyundai-sonata-loud-engine/176714/5 "2021-05-11T02:00:23Z")

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Some of these late model engines make a lot of noise during a cold start, particularly the turbo charged engines. There is an emissions system valve that clatters, I have not had to investigate the source of the noise. Also vacuum pumps can make some noise during start-up.

Keeping the hood closed usually solves the noise problem.