Skip the auto shop - Our mechanics make house calls

Q: Why does the gas pump cutoff before the tank is even 1/2 full?

asked by on

Recently, when my tank is nearly empty, the gas pump behaves as if it is full after only 1 gallon or so. The fuel overflows if I try to continue too fast. Even at a slow rate I have to stop/start repeatedly to fill up.

My car has 100000 miles.
My car has an automatic transmission.

A: Hi there: When you have a hard time fillin...

Hi there:

When you have a hard time filling the fuel tank or the tank is frequently spilling like you’ve indicated, it’s commonly caused by a component that comprises the EVAP system; such as the EVAP vent solenoid. In most cases, when there is excessive pressure inside the tank which tends to cause these symptoms, it’s due to the EVAP system being damaged or faulty. You might want to have a professional mechanic complete a fuel tank inspection; which will allow them to determine the reason why you’re Hyundai is experiencing these issues.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car shows P0172 but the car is running fine

Hi there. As you already know, replacing components without diagnoses, can be expensive and time consuming without resolution. The P0172 code is an indication of too much fuel or not enough air is being delivered to the engine. The ECM...

Q: Transmission leak

Hi. Automatic transmissions operate using hydraulic pressure. Without the proper fluid level, the transmission can't build pressure and won't operate properly. Locating and fixing the transmission leak may solve your problem. Have a technician inspect the transmission leak and repair...

Q: Car misfiring on cylinder three

Hello! We will be happy to assist. You have definitely been on the right path to finding the root of the misfire. However there are a few things left that I recommend checking. I suggest to check the spark at...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.