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Gurgling sound in my gas tank while car is running?

Tiny
DEBRUTZ10
  • MEMBER
  • 2012 KIA RIO
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 156,000 MILES
I had unrelated work done last week, ball joint, tie rod and alignment. Noticed gas mileage was up quite a lot a few days later. I decided to check the gas cap, while the car was running, to make sure it was tight, and heard this noise.
Saturday, September 17th, 2022 AT 4:11 PM

8 Replies

Tiny
DEBRUTZ10
  • MEMBER
  • 5 POSTS
The gas tank is half full. See video.
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Saturday, September 17th, 2022 AT 4:15 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,489 POSTS
Thanks for the video. Yep, that noise is not normal. It sounds like you have an EVAP control solenoid that is stuck open. Here is the location so you can change it out which should fix the problem. Check out the images (below). Please let us know what happens.
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Monday, September 19th, 2022 AT 9:42 AM
Tiny
DEBRUTZ10
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Hi. Thanks so much for the reply, I really appreciate the info. Will definitely let you know how I make out. My question is, is it okay to drive? Thanks!
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Monday, September 19th, 2022 AT 11:40 AM
Tiny
KEN L
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Because the problem is fuel related, I can't say it is safe to drive, sorry.
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Monday, September 19th, 2022 AT 5:39 PM
Tiny
DEBRUTZ10
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Apparently, it's a purge valve, according to my mechanic, doing what it's supposed to do, and basically, I shouldn't open my gas cap while the car is running.
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Tuesday, September 20th, 2022 AT 11:07 PM
Tiny
KEN L
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Can you hear it from inside the car or? How did you notice the noise?
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Thursday, September 22nd, 2022 AT 11:58 AM
Tiny
DEBRUTZ10
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No, not from inside the car. Only when I removed the gas cap when the car was running.
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Thursday, September 22nd, 2022 AT 4:45 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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It could be normal then, when you release the cap is there a vacuum like sound?
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Friday, September 23rd, 2022 AT 12:31 PM

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