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12820 Gulf Freeway, Houston, TX, 77034

Buick GMC Check Engine Light Symbol

buick gmc check engine light symbol


Beck & Masten Buick GMC South is happy to help you know what it means when your Buick GMC check engine light symbol is on.

The check engine warning light warns drivers of possible engine issues or total failure. Your car’s check engine light might come on because of several reasons. It might be anything from a simple sensor failure, an alert to schedule maintenance (such as an oil change), or even warning of major problems that may cause engine failure. So, even if the check engine light comes on, it may not be a total disaster. However, if your check engine light comes on, we suggest bringing it to us for a complete diagnostic inspection. Even if nothing feels broken, getting it inspected can be the difference between needing to replace the engine and a simple fix.


Loose Gas Cap

Your Gas Cap is Old

Something as simple as forgetting to replace the gas cap or not tightening it completely may trigger a check engine warning light. A car’s gas cap may need to be changed during your ownership. Gas caps may have a life expectancy as low as 50,000 miles. If you feel you should replace your gas cap, we highly recommend genuine OEM replacement parts. Parts from big box stores will work in a pinch, but nothing beats original parts from the manufacturer.

Bad Spark Plugs

Faulty Spark Plugs

Spark plugs are vital to the efficiency of your car’s engine. As the name indicates, spark plugs provide a small spark of electricity, which then ignites the fuel and causes the engine to run. Spark plugs demand very precise tolerances for peak performance, and if the spark plug gap is incorrect, it could potentially cause a check engine light. Some symptoms of worn spark plugs include diminished MPG rates, slower acceleration, and an engine that just does not run smoothly.

O2 Sensors in Your Vehicle are Failing

Old Oxygen Sensors

There are many sensors that feed information to your engine to help it run efficiently. However, bad readings from components like the MAF sensor or the oxygen sensors can trigger a check engine warning light. If your car seems normal, a broken O2 sensor is the most likely culprit. This might mean that your vehicle is fine, but because the engine is not getting the information, it triggers the warning light. Even if your car feels unaffected, you should probably get it diagnosed immediately to rule out more serious problems.



Buick GMC online car buying Houston  TX

Schedule Service for a Buick GMC In Houston

Beck & Masten Buick GMC South is your ideal destination for all your auto service needs in Houston. 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 South 29.6114, -95.2127.