Skip the auto shop - Our mechanics make house calls

Q: Gas cap warning light stays on

asked by on

My car's gas tank was replaced recently and 3 days later the 'Check Engine' light came on and stayed on. Plus, a gas cap sign is now showing. I tightened it and it seems secure. What does this mean?

I would take it back to the dealer that put the tank in and have them check their installation of the fuel tank. The lights should be off and no leaks detected with the new fuel tank. You may have a major vapor line leak and gas vapors are more flammable than liquid gas.

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 starter fuse keep popping every time i push the ignition button on my charger

It sounds like your starter may be drawing too much power from the battery, resulting in the fuse popping every time you start the vehicle. This may happen as a result of bad wiring or potentially a bad starter solenoid....

Q: Car Wash Incident

It's possible especially if there was an impact to the transmission at the time that the engine cover was damaged. The vehicle should be inspected for ALL damage (not just damage to the cover). To draw a tighter (causal) connection...

Q: Does Ford escape has fuel cap?

If you open the gas door and do not see a gas cap then look for a sign that say easy fill no gas cap required. If you see this then your vehicle is not equipped with a gas cap....

Related articles

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...
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.