Why Is My Nissan Check Engine Light On?

why is my nissan check engine light  on?


Town North Nissan welcomes you to discover why your Nissan check engine light is on.

The check engine warning light warns drivers of potential engine issues or complete failure. Your check engine light might turn on due to several reasons. It could be anything from a simple sensor failure, an alert to perform maintenance (such as an oil change), or even warning drivers of potentially significant problems that might cause engine failure. So, even if the check engine warning light comes on, it might not be a total disaster. However, if your check engine warning light does come on, we suggest bringing it to us for a complete inspection. Even if nothing seems broken, having it diagnosed can be the difference between having to replace the engine and a simple fix.


Loose Gas Cap

Failing Gas Cap

Something as basic as forgetting to replace your gas cap or not replacing it completely may cause a check engine warning light. A gas cap might need to be changed during your time of ownership. After 50,000 miles, you may want to replace the gas cap. We highly suggest genuine OEM replacement parts if you feel you need to replace your gas cap. Parts from DIY stores will work in a pinch, but nothing is better than parts from the manufacturer.

Bad O2 Sensors

O2 Sensors in Your Vehicle are Faulty

There are several sensors that give information to your engine to help it run more efficiently. However, missing readings from components like the mass airflow sensor or the oxygen sensors can cause a check engine warning light to come on. If your car is running like normal, a broken O2 sensor is the likely reason. In this situation, it might mean that the vehicle is fine, but since the engine isn’t getting the information, it triggers a warning. Even if the vehicle feels normal, you should probably get it diagnosed ASAP to rule out more serious problems.

Spark Plugs in Your Vehicle are Old

Spark Plugs in The Car are Old

Spark plugs are vital to the performance of your vehicle’s engine. As the name implies, spark plugs provide a tiny spark of electricity, which then ignites the gas and causes an engine to run. Spark plugs have very accurate tolerances for peak performance, and if the spark plug setup is incorrect, it could cause a check engine light. Symptoms of bad spark plugs include lower MPG rates, less engine power, and your engine just will not run smoothly.



Nissan online car buying Austin  TX

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Town North Nissan 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 Nissan service in person or online today.

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