Gas tank will not fill

Tiny
JTPHILLY92
  • MEMBER
  • 2003 HYUNDAI SONATA
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 133,500 MILES
My gas tank won't fill up. It causes the fuel pump to shut off. I have already replaced two sensors and the EVAP canister.

What do I do now?
Tuesday, December 3rd, 2019 AT 6:27 AM

1 Reply

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This could be a problem with the fuel tank pressure sensor or the associated wiring going to it. In the diagrams down below I have included a diagnostic troubleshooting guide for you for the fuel tank pressure sensor for your vehicle from the manufacturer. You will need to use a Digital Multi-meter [DMM] to go through this guide, so here is a link below, if you are unfamiliar with how to use one:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

I have also included guides on how to find opens and short to grounds in an automotive electrical circuit. Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Tuesday, December 3rd, 2019 AT 7:09 AM

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