What Caused My Ford Check Engine Light To Come On?

what caused my ford check engine light to come on?


Maxwell Ford welcomes you to discover what caused your Ford check engine light to come on.

The check engine warning light warns drivers of possible engine problems or even complete failure. Your check engine warning light might turn on due to many reasons. It might be small things like a simple sensor failure, an alert to schedule preventive maintenance (such as an oil change), or even to be on the lookout for potentially significant issues that might contribute to engine failure. So, even if the check engine warning light comes on, it might not be a complete disaster. However, if your check engine warning light does come on, we suggest bringing it to us for a full inspection as quickly as possible. Even if nothing feels broken, getting it diagnosed accurately can be the difference between needing to replace the engine and a simple fix.


Loose Gas Cap

The Gas Cap is Old

Something as simple as not replacing the gas cap or not replacing it correctly could easily trigger a check engine light. Your car’s gas cap might need to be replaced during your time of ownership. Gas caps may have a life expectancy as low as 50k miles. If it is time to replace your gas cap, we recommend genuine replacement parts from the manufacturer. Parts from DIY stores will work in an emergency, but nothing is better than original parts from the manufacturer.

O2 Sensors in Your Vehicle are Old

Faulty Car Oxygen Sensors

There are many sensors that feed information to the engine to help it work efficiently. However, bad sensor readings from components like the MAF sensor or the O2 sensors can cause a check engine light to come on. If your car is running like normal, a broken O2 sensor is the likely culprit. This may mean that the car is actually running normally, but since the engine is not receiving the data, it triggers a warning light. Even if your car feels fine, you should get it checked out ASAP to rule out any potential larger issues.

Failing 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 spark of electricity, which then ignites the gas and causes an engine to run. Spark plugs require very precise tolerances for optimal efficiency, and if the spark plug configuration is too large, it could potentially cause a check engine warning light. Symptoms of worn spark plugs include diminished fuel efficiency, slower acceleration, and an engine that just does not run smoothly.



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Maxwell Ford is one of the most trusted places for engine repair in the Austin area. We happily service all vehicle makes and models. One of our factory-trained technicians will inspect your vehicle for any necessary repairs and suggest the best resolution for you and your vehicle. Schedule your Ford service in person or online today.

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