Probable Causes For Your Check Light Turning On

The check engine light rarely comes on. However, when it does, it usually means that there is something faulty in your engine. Observation cannot determine the particular fault and its magnitude. It is recommended that you visit a dealership for expert analysis of the flaws. The most common reasons behind the lighting include:

  • Faulty oxygen sensor. Sensors may become ineffective over time. This defect should be corrected as it results in rapid fuel consumption and more toxic emissions.
  • Faulty or loose gas cap. A loose gas cap allows vapors to escape leading to more fuel consumption.
  • Defective Catalytic Converter. The converter reduces the toxicity of fuel emissions. Its failure results in more carbon monoxide emissions. If left unattended, it may stop the car from running.
  • Malfunctioning mass airflow sensor. It is recommended that the air filter is replaced annually to avoid sensor problems.
  • Damaged spark plugs and wires. Spark plugs are vital to your engine’s ignition. It is advisable to change plugs after a certain mileage.

While amateurs can fix some of the defects, it serves your best interest to seek the services of a professional. Stop by our service department to consult an expert!

Categories: Service
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