Skip the auto shop - Our mechanics make house calls

Q: The Check Fuel Cap light is on.

asked by on

Recently my check fuel cap light has come on and I have stopped a couple times and tightened it like normal until I heard it click a few times. It seems fine, might just be a sensor or it possibly really is loose and I need to replace it. Any way to tell? Thank you

My car has 67000 miles.
My car has an automatic transmission.

In order to find out what is causing the leak to be detected the fuel vapor system and cap will need to be smoke tested to see where the leak is. The most common is the seal on the fuel cap leaks. You can try and replace the cap first and then if the signal keeps coming on then have the smoke test done.

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: It overheated once and the heater started blowing cold air

Hi There, What you are describing sounds like a clogged heater core which may also be connected to your car overheating as well. As you may know, the heater core is a small radiator like unit that circulates the hot...

Q: When I speed up or slow down to between 30-40mph my Jeep vibrates like it's running over rumble strips.

Hey there. This could be due to a torque converter imbalance, or internal problem with converter, which will sometimes occur in a dynamic and limited range. Have a technician attach wireless "chassis ears" to logical areas on the drivetrain to...

Q: Fault codes P0098 and P0238 - 2011 Volkswagen Golf

Hi there. The two OBD-II error codes you posted including the P0098 OBD-II Trouble Code and the P0238 code are similar in many ways. The P0098 code indicates that there is an issue with the intake air temperature sensor...

Related articles

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...
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.
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.