Skip the auto shop - Our mechanics make house calls

Q: Gas tank appears to be full when it's not and it is difficult to fill

asked by on

I have a problem with filling the gas tank. When I try to put gas, it appears as if the gas tank is full. The nozzle on the pump closes. But the gas tank is not full. So, I have to put smaller amounts and it takes a lot longer than it normally would. It is backing up the pipe even when I put very small amounts. What should I do? Thanks.

Hello. This happens frequently on this vehicle. It is typically always caused by a bad evaporative system vent valve. This valve needs to allow the tank to vent when filling it with fuel. If it does not open, this will occur. I typically check the solenoid to see if it will open and close and check the hoses for blockage. If you are going to have this fixed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

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!
  1. Home
  2. Questions
  3. Gas tank appears to be full when it's not and it is difficult to fill

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: 2000 Chrysler 300m will not start because of the anti theft system

You can refer to YourMechanic's instructions to de-activate the engine immobilizer system. You should also consider the possibility of a weak battery, excessive voltage drop in the starter circuit due to poor electrical connections (be sure the ignition switch was...

Q: Uneven tread wear and vibrating

I believe you have some suspension problems. If you have worn balljoints, then you will have a problem with uneven wear and tear on your tires. Also, you could have a problem with your control arms. The front of your...

Q: Code B11E5

Hi there. This fault code indicates a failure in the circuit for the left HVAC damper position sensor. This fault can be connected to the operation of the left temperature blend door. Have an experienced technician inspect the electrical components...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.