What does it mean if my check engine light comes on?

What does it mean if my check engine light comes on?

When your check engine light comes on, it can be pretty nerve-racking. It could mean an easy fix like tightening your gas cap or something more serious. It is important to get your vehicle to your local auto store or service center for a technician to read the error code that is causing the light to come on.

5 Most Common Reasons Your Check Engine Light Is On

  1. The Oxygen Sensor needs to be replaced.
  2. Loose or faulty gas cap.
  3. The Catalytic Converter needs to be replaced.
  4. The Mass Airflow Sensor needs to be replaced.
  5. Spark Plugs and/or Plug Wires need replacing.

What to do when your Check Engine light comes on

As soon as you notice your vehicle's check engine light has come on, there are a few things that should be done immediately.

  1. Check your gauges for any indication of low oil pressure or overheating.
  2. Reduce your speed and check for any loss of power.
  3. When stopped, tighten your gas cap.
  4. Have the code read by a certified technician.

NOTE: If your check engine light is flashing, that indicates severe engine failure and you should pull over and shut off the vehicle.