Skip the auto shop - Our mechanics make house calls

Q: My Check Engine Light is on after the fuel tank overflowed

asked by on

Went to Costco's filled up tank like I usually do on Sunday pump did not shut off show's over run over on the ground my wife was driving the car it died a couple of times then it was okay and now the engine light came on did it hurt anything

My car has 24500 miles.
My car has an automatic transmission.

A: When the fuel overflowed, the fuel system m...

When the fuel overflowed, the fuel system most likely caused the vapor recovery and tank vent to become flooded with liquid fuel. This flooding of the vent system may cause the computer to sense a problem in the fuel tank and purge valve function and set a code, turning on the Check Engine Light.

You will need to have the Check Engine Light diagnosed and any codes received cleared from memory, and then must drive the vehicle to see if the code returns. If the light does not come back on, then you may not have damaged anything by overfilling the fuel tank. If the light comes back on, then one of the fuel tank vapor system components may need to be replaced. I recommend having a certified mechanic, such as one from YourMechanic, come to your location to determine why the Check Engine Light is on and what repairs are necessary.

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: Plastic cover dragging on ground

Hello. This is probably your front undertray panel, which is usually held in place with quick turn plastic screws. Probably during your last oil change or maintenance, the technician did not get those quick turn screws installed correctly, so they...

Q: changed plugs and wires broke the tip off of the egr control sensor car won't run and gets hot

Hey there. The EGR (Exhaust Gas Recirculation) sensor monitors the amount of exhaust gases in your car's engine and helps to keep this recirculating which helps to lower cylinder temperatures and pressure. When this sensor fails, it can cause a...

Q: What Do Transmission Error Codes Tell You?

Using transmission error codes is a necessary procedure for a transmission technician since automatic transmissions have been computer controlled for over 20 years. The transmissions currently in use are very different to diagnose and repair than transmissions from decades ago....

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...
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.