# 2004 Kia Optima doesn't work when it rains real bad

**URL:** <https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839>\
**Category:** General Discussion\
**Tags:** optima, kia\
**Created:** [July 13, 2017, 6:19pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839 "2017-07-13T18:19:27Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![alexis\_851](https://avatars.discourse-cdn.com/v4/letter/a/919ad9/32.png) [@alexis\_851](https://community.cartalk.com/u/alexis_851)\
**Post date:** [July 13, 2017, 6:19pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/1 "2017-07-13T18:19:27Z")

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Kia Optima does work when it rains

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**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\
**Post date:** [July 13, 2017, 6:26pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/2 "2017-07-13T18:26:28Z")

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> [@alexis\_851](#):
>
> got any ideas

Yes , and here are the ideas: Edit your post and remove profanity, remove the name and location of service place and just post facts.

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**Author:** ![alexis\_851](https://avatars.discourse-cdn.com/v4/letter/a/919ad9/32.png) [@alexis\_851](https://community.cartalk.com/u/alexis_851)\
**Post date:** [July 13, 2017, 6:39pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/3 "2017-07-13T18:39:25Z")

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Any ideas in how to fix the car !!and I’m stating facts that what happen too it

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**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\
**Post date:** [July 13, 2017, 7:05pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/4 "2017-07-13T19:05:01Z")

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If you mean you can start your car OK, but when you drive in heavy rain it stalls, I would look underneath the front to see if a plastic baffle is missing…compare it to another Optima.

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**Author:** ![alexis\_851](https://avatars.discourse-cdn.com/v4/letter/a/919ad9/32.png) [@alexis\_851](https://community.cartalk.com/u/alexis_851)\
**Post date:** [July 13, 2017, 7:06pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/5 "2017-07-13T19:06:04Z")

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Thank you !!!

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**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\
**Post date:** [July 13, 2017, 8:10pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/6 "2017-07-13T20:10:24Z")

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Had the '04’s gone to coil on plug ignition yet, or did they still use a traditional distributor? Anyone know?

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [July 14, 2017, 2:03am UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/7 "2017-07-14T02:03:24Z")

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Stalling only during rainy weather is often some part of the high voltage ignition system getting wet. One idea, in dry weather when it is running ok, see if spraying a little water-mist from one of those hand-held plant misters onto the spark plug wires, coils, causes it to stall. If so, you have a major clue.

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**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\
**Post date:** [July 14, 2017, 6:09pm UTC](https://community.cartalk.com/t/2004-kia-optima-doesnt-work-when-it-rains-real-bad/105839/8 "2017-07-14T18:09:44Z")

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> [@shadowfax](#):
>
> Had the '04’s gone to coil on plug ignition yet…

Looks like plugs, wires, and coil pack:

![](https://global.discourse-cdn.com/cartalk/original/2X/b/be183010903654b9d3cb2ccd63e6d31045063c92.png)
