Skip the auto shop - Our mechanics make house calls

Q: Changed gas cap........engine light still on. What else can I do?

asked by on

Car tested for engine light on.....said gas cap.....I changed the gas cap.....Engine light is still on. This happens a lot. I have to go for inspection this month.....this grandma is desperate to get this light to go off or I will fail inspection......can't afford a mechanic.

My car has 95000 miles.
My car has an automatic transmission.

There is no code for a gas cap on this vehicle. There is codes for leaks in the emission control fuel tank system. In order to find the reason of the code returning the vehicle emission vapor system needs to be smoke tested to see what is not holding the vapor in. The fuel tank or hoses and the purge valve may be leaking. Only a test will isolate the leak so it can be repaired.

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

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: Hello I have a lancer and it just shut off on me driving on the freeway..sounds like its just winding like if there's no belt on i

A possibility is a broken timing belt but there are other common possibilities such as an engine sensor failure, ignition switch failure, fuel pump failure and so forth. The good news is you do not have an intermittent problem but...

Q: What does the overdrive off light mean?

The overdrive off light is located on the instrument panel. This light will illuminate when the overdrive system on the transmission has been turned off. Tips The overdrive off light will briefly illuminate when the vehicle is turned on. The...

Q: oil leaking and smoke coming from engine

The source of the oil leak may be near a hot component like the exhaust manifold. If the engine valve cover or the crankcase ventilation system is leaking oil, it may run down the side of the engine to the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.