Engine light, code P0455

Tiny
CHRISP512
  • MEMBER
  • 2003 HYUNDAI SONATA
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 226,577 MILES
I just got a p0455 code any ideas on what it most likely it is? AutoZone says gas cap, but I think they are full of it.
Friday, September 7th, 2018 AT 9:42 PM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I am Danny.

Actually yes, that is the first step. Code P0455 is Evaporative Emission Control System Leak Detected (Gross Leak). I would first inspect the rubber o-ring on the gas cap to see if cracked/split/torn. Make sure after tightening cap go about three clicks more. If going to replace cap, after tightening go three clicks more. Clear codes and see if Check Engine Light comes back on. If so, we will go from there. I have attached a tutorial for you to view. Hope this helps and feel free to ask any other questions.Thanks for using 2CarPros.
Danny-

https://www.2carpros.com/articles/evap-system-code-repair
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Friday, September 7th, 2018 AT 10:22 PM

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