Is your check engine light on in your Jaguar XF, XE, XJ or other vehicle? Do you know why? It usually means that something isn't working properly. The source of the problem could be something really serious or it could be something minute. Here are some of the most common reasons why your check engine light is on:

  1. The oxygen sensor needs to be replaced - The O2 sensor is what measures the amount of unburned oxygen in your vehicle's exhaust system. When the sensor is damaged that means it's not providing the right information to the computer and causes a decrease in gas mileage.
  2. Damaged or loose gas cap - Your gas cap could be the source of your problems. Shockingly your gas cap is vital to your fuel system. A loose or cracked gas cap will leak out fuel vapors and cause a reduction in gas mileage and an increase in emissions.
  3. It may be time to replace the catalytic convertor - The catalytic convertor helps reduce exhaust gases. It takes carbon monoxide and converts it into carbon dioxide. A failing catalytic convertor decreases gas mileage and cause your car to run at higher temperatures.
  4. Mass Airflow Sensor needs to be replaced - The mass airflow sensor measures the amount of air that enters into your engine and determines how much fuel is needed to run your engine efficiently. If this part is damaged it will harm your spark plugs, O2 sensors, and the catalytic converter.
  5. Maybe it's time to replace the spark plugs and wires - Spark plus are what ignites the air-fuel mixture to power your engine. When bad spark plugs misfire and you will feel a jolt when your car accelerates.

If you have any questions or issues with your check engine light schedule service with us today. Our team of Jaguar service technicians will provide friendly, quality maintenance.

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