# 2015 Kia Optima runs rough

**URL:** <https://community.cartalk.com/t/2015-kia-optima-runs-rough/117128>\
**Category:** Maintenance/Repairs\
**Tags:** optima, kia\
**Created:** [May 10, 2018, 2:38pm UTC](https://community.cartalk.com/t/2015-kia-optima-runs-rough/117128 "2018-05-10T14:38:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![LauraAnderson](https://avatars.discourse-cdn.com/v4/letter/l/35a633/32.png) [@LauraAnderson](https://community.cartalk.com/u/LauraAnderson)\
**Post date:** [May 10, 2018, 2:38pm UTC](https://community.cartalk.com/t/2015-kia-optima-runs-rough/117128/1 "2018-05-10T14:38:50Z")

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I have to give my car extra gas to climb a hill and it runs rough. It has constant humm, when I stop it act as if it wants to go dead. There are no check engine light on, but I’m worried.

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**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\
**Post date:** [May 11, 2018, 2:56am UTC](https://community.cartalk.com/t/2015-kia-optima-runs-rough/117128/2 "2018-05-11T02:56:17Z")

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Is this car not still under warranty?