Q: Fuel Pump shuts off when filling

asked by on

My check engine light went on, I went to an oil change guy because I knew I had to have my transmission oil changed. I asked him if he could check out why the engine light was on, so he plugged in his computer diagnostic machine and he said the check engine light had something to do with the fuel tank or something around that area. SO that same week when I was filling up, it kept shutting off as if my tank was full but it was on empty. Then the time after there was no issue but then a week after that it happened again and worse, it shut off every ten seconds.

My car has 104500 miles.
My car has an automatic transmission.

This is likely related to your EVAP emissions system and something called a purge solenoid. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine. The vent control valve (solenoid) controls the flow of outside air in and out of the charcoal canister. When this is not working properly, you may experience the gas pump shutting off prematurely causing it to take a very long time to fill up your fuel tank. This is due to the excess fuel vapor that is present when the purge solenoid is not working properly by releasing these vapors. The gas pumps at the fuel station have automatic sensors on them (for safety reasons) that shut off automatically when too much fuel vapor is present. I would recommend having an expert from Your Mechanic come to your home to take a look at your car to diagnose your EVAP purge solenoid.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Fuel Pump shuts off when filling

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: Door not unlocking with the remote

Hello, it sound like you have a failing left front power door lock actuator. On a lot of modern cars, there are position sensors built into the power door lock actuator, which can affect the operation of the other doors....

Q: How do I change the ringtone volume?

The volume of the ringtone on an incoming phone call can be changed very easily. To do so, follow these steps: Press the Setup button. Press phone, phone sound settings, ring tone choose ring tone volume. Then adjust volume...

Q: Emergency brake light not working properly

You will need to have the skid control ECU scanned for proper input from parking brake to see if the fault is in the parking brake, ECU or instrument cluster. A mechanic like one from YourMechanic can come and test...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...