# 2013 Hyundai Sonata - Electrical issues related to engine

**URL:** <https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741>\
**Category:** Maintenance/Repairs\
**Tags:** hyundai, engines\
**Created:** [March 20, 2021, 3:42pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741 "2021-03-20T15:42:20Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![Barber18](https://avatars.discourse-cdn.com/v4/letter/b/a5b964/32.png) [@Barber18](https://community.cartalk.com/u/Barber18)\
**Post date:** [March 20, 2021, 3:42pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/1 "2021-03-20T15:42:20Z")

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customer stated that vehicle died while driving it. Mechanic says that it is showing no fuel pump and no spark. All fuses for those issues are not getting fire but the fuses are not blown.

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**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [March 21, 2021, 1:24pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/2 "2021-03-21T13:24:06Z")

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I would first acquire a wiring diagram.  
Trace back to what the un-powered fuses have in common.

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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:** [March 21, 2021, 2:40pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/3 "2021-03-21T14:40:46Z")

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Bad crank position sensor would cause that.

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**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\
**Post date:** [March 21, 2021, 3:22pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/4 "2021-03-21T15:22:56Z")

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It would cause a no-spark. It would not cause no-fuel-pump-running.

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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:** [March 21, 2021, 3:27pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/5 "2021-03-21T15:27:48Z")

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> [@shanonia](#):
>
> It would not cause no-fuel-pump-running.

Good point. It would not fire the fuel injectors but the pump should run.

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**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\
**Post date:** [March 21, 2021, 3:35pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/6 "2021-03-21T15:35:00Z")

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> [@shanonia](#):
>
> It would cause a no-spark. It would not cause no-fuel-pump-running.

> [@Mustangman](#):
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> Good point. It would not fire the fuel injectors but the pump should run.

Depends on the strategy of the car. Some cars don’t run the fuel pump after the 2-second prime unless they see an input from the crank sensor. No need to run the pump if the engine is not turning.

But before checking for spark or fuel, a scan tool should be used to look at some pertinent data.

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**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\
**Post date:** [March 21, 2021, 3:59pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/7 "2021-03-21T15:59:16Z")

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> [@asemaster](#):
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> Some cars don’t run the fuel pump after the 2-second prime unless they see an input from the crank sensor

If you turn the key to Off, then back to Run, the FP cycles on for a couple seconds every time, doesn’t it? It does on the few cars I know.

Maybe not in all cars. Even keys aren’t what they used to be, I hear.

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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:** [March 21, 2021, 4:04pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/8 "2021-03-21T16:04:33Z")

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> [@Barber18](#):
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> customer stated that vehicle died while driving it. Mechanic says that it is showing no fuel pump and no spark.

OK , is the customer Barber 18 or the service writer at some kind of shop ? Mechanic says what problems are but no statement of what needs to be done . And is this a post about help or just another one of those Carcomplaint site posts ?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [March 21, 2021, 4:32pm UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/9 "2021-03-21T16:32:23Z")

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A bad crank sensor will cause no spark no fuel pump operation.

Tester

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<div class="post-metadata">

**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [March 22, 2021, 12:10am UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/10 "2021-03-22T00:10:53Z")

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> [@Barber18](#):
>
> All fuses for those issues are not getting fire but the fuses are not blown.

This suggests to me a blown main fuse or a problem in the fuse box.  
On further thought perhaps a bad relay or ignition switch.

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**Author:** ![TXdealer](https://avatars.discourse-cdn.com/v4/letter/t/50afbb/32.png) [@TXdealer](https://community.cartalk.com/u/TXdealer)\
**Post date:** [March 22, 2021, 1:53am UTC](https://community.cartalk.com/t/2013-hyundai-sonata-electrical-issues-related-to-engine/175741/11 "2021-03-22T01:53:40Z")

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Not sure about your specific instance, but these cars have an issue with compete engine failure while driving. The VIN can be entered on the Hyundai website to see if the engine is covered by the manufacturer.
