What Does It Mean When My Buick GMC Check Engine Light Symbol Is On?

what does it mean when my buick gmc check engine light symbol is on?


Come to Beck & Masten Buick GMC Coastal Bend to learn what it means when your Buick GMC check engine light symbol is on.

The check engine light warns owners of future engine problems or even failure. There are lots of reasons your car’s check engine warning light may come on. It may be anything from sensor failure, alerting you to perform maintenance (such as an oil change), or even warning drivers of major problems that could contribute to engine failure. So, even if the check engine light turns on, it might not be a total disaster. However, if and when your check engine warning light does come on, we suggest bringing it to us for a full inspection as soon as possible. Even if nothing feels broken, having it inspected can be the difference between a cheap repair and needing to replace your engine.


Your Gas Cap is Failing

Old Gas Cap

Something as silly as forgetting to replace the gas cap or not replacing it correctly can cause a check engine light. A vehicle’s gas cap will probably need to be replaced during your vehicle ownership. After 50k miles, you should consider replacing the gas cap. We recommend genuine replacement parts from the manufacturer if you feel you should replace your gas cap. Replacement parts from Do-It-Yourself stores will work in a pinch, but nothing beats parts from the manufacturer.

Spark Plugs in The Vehicle are Faulty

Faulty Spark Plugs

Spark plugs are vital to the performance of your vehicle’s engine. As the name indicates, spark plugs provide a small spark of electricity that ignites the gas and causes your engine to run. Spark plugs require precise measurements for peak performance, and if the spark plug setup is too large, it could trigger a check engine warning light. Some symptoms of worn spark plugs include diminished MPG rates, less engine power, and your engine just doesn’t run smoothly.

O2 Sensors in Your Car are Bad

Oxygen Sensors in The Car are Bad

Several sensors feed info to your engine to help it run efficiently. However, missing readings from components like the MAF sensor or the oxygen sensors can cause a check engine warning light. If the vehicle is running normally, an old oxygen sensor is the likely reason. This could mean that the car is actually running normally, but because the engine isn’t getting the data, it triggers the warning. Even if your vehicle feels fine, you should probably get it diagnosed immediately to rule out any potential larger problems.



Buick GMC online car buying Corpus Christi  TX

Schedule Service for a Buick GMC Near Corpus Christi

Beck & Masten Buick GMC Coastal Bend is your ideal destination for all your auto service needs near Corpus Christi. Our friendly staff is ready to get you and your vehicle back on the road safely, no matter its make or model. Schedule your next auto service with us in person or online.

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Beck & Masten Buick GMC Robstown 27.7857, -97.6542.