Gas pump keeps shutting off help! - Hyundai Forums : Hyundai Forum
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post #1 of 12 (permalink) Old 12-05-2017, 02:44 PM Thread Starter
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Gas pump keeps shutting off help!

2012 Hyundai Sonata gas pump keeps shutting off like every 2 to 3 seconds. I have to halfway hold the pump leaver to get fuel in it. I noticed the car is also bad on gas now. I have no check engine light on. Help please.
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post #2 of 12 (permalink) Old 12-05-2017, 03:48 PM
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That's something inside the fuel filler neck. Either the canister in there or one of the valves. If you want to do it yourself service it while the tank is near empty. Should be easy to remove it from the car, just take your time.

filler neck.JPG

See that part labeled "12" vent tube? That's where I would start if I were you.

If this is over your head then you need to take it somewhere, either the dealer or a local mechanic.

Last edited by C4RN1; 12-05-2017 at 03:54 PM.
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post #3 of 12 (permalink) Old 12-16-2017, 06:36 PM
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I had the same things with my 2013 Sonata GLS - the gas would shut off every few seconds. Frustrating.

Solution was to not insert the hose fully. Instead, insert it about 3/4 of the way in. Still more than enough that there's no chance of the handle falling out if left unattended, and it'll fill up the tank without shutting off once.
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post #4 of 12 (permalink) Old 12-16-2017, 06:48 PM
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Suspect vent path is restricted,, likely canister problem.... removing 12 from atmosphere side of CCV still leaves tank to vent through canister... not an ideal test

I would remove large line from canister body and try refuel as a test.. if it fill up fine and dandy,, run with canister being fouled

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post #5 of 12 (permalink) Old 12-16-2017, 07:48 PM
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Suspect vent valve or Evap canister is clogged
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post #6 of 12 (permalink) Old 12-18-2017, 11:46 PM Thread Starter
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Im not getting a check light.
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post #7 of 12 (permalink) Old 12-18-2017, 11:47 PM Thread Starter
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Im not getting a check light?
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post #8 of 12 (permalink) Old 12-19-2017, 12:13 AM
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Turn the nozzle all the way to the right - 90 degrees - when filling. Learned this from a Costco service attendant who has seen it all. Works every time.

This ties in with the info in post #3. Some nozzles are too long.

Last edited by grandpaswagon; 12-19-2017 at 12:17 AM.
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post #9 of 12 (permalink) Old 12-19-2017, 10:53 PM
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Hardly ever get a check engine light for this problem
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post #10 of 12 (permalink) Old 12-20-2017, 04:36 PM Thread Starter
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So this is something the dealer will have to scan without a check light?
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