What to Do When Your Check Engine Light Comes On

The check engine light, dellendirecto.com/ also known as the malfunction indicator light (MIL), is a warning light on your dashboard that indicates there is a problem with your car’s engine or emissions system. The light may come on for a variety of reasons, some of which are more serious than others.

Common causes of a check engine light

  • Loose or faulty gas cap. This is one of the most common causes of a check engine light. When you fill up your gas tank, make sure the cap is tightened all the way.
  • Worn spark plugs or spark plug wires. Spark plugs ignite the air-fuel mixture in your engine, so if they are worn or damaged, your car may not run properly.
  • Faulty oxygen sensor. The oxygen sensor measures the amount of oxygen in your exhaust, and a faulty sensor can cause your car to emit too much pollution.
  • Clogged catalytic converter. The catalytic converter converts harmful emissions into less harmful substances, so if it is clogged, your car may not pass emissions testing.
  • Mass airflow sensor. The mass airflow sensor measures the amount of air entering your engine, and a faulty sensor can cause your car to run too rich or too lean.

What to do if your check engine light comes on

If your check engine light comes on, the first thing you should do is check your gas cap to make sure it is tightened all the way. If the cap is tight and the light is still on, you will need to take your car to a mechanic to have the code scanned. The code will tell the mechanic what is causing the light to come on, and they can then diagnose the problem and make the necessary repairs.

How serious is a check engine light

The seriousness of a check engine light depends on the cause of the problem. In some cases, the problem may be minor and can be fixed easily. However, in other cases, the problem may be more serious and could lead to engine damage if it is not fixed.

If you see your check engine light come on, it is important to have it checked out as soon as possible. Ignoring the light could cause the problem to worsen and could lead to costly repairs.

Here are some tips to help you avoid getting a check engine light:

  • Change your oil and air filter regularly. This will help keep your engine running smoothly and prevent problems.
  • Check your tire pressure regularly. Low tire pressure can cause your car to run inefficiently, which can lead to a check engine light.
  • Avoid driving with a heavy load. This can put extra strain on your engine and could lead to problems.
  • Have your car serviced regularly. This will help catch any potential problems before they cause a check engine light.

By following these tips, you can help keep your car running smoothly and prevent your check engine light from coming on.