FAQs About Check Engine Lights

FAQs About Check Engine Lights

Modern vehicles contain multiple computer systems known as control modules that monitor the vehicle’s functions. When one of the control modules detects that something is wrong, they will turn on a light on the dashboard. These lights can include signals for low tire pressure, high engine temperature, low oil levels, check engine lights, and more. The check engine light, sometimes referred to as the malfunction indicator light, can signal that one of many different issues could be happening with the vehicle. For this reason, check engine lights typically require you to take your vehicle to a mechanic to get a readout to identify what the problem is. In this article, we’ll talk about the most common causes of the check engine light coming on and answer some other frequently asked questions about check engine lights! 

When Does The Check Engine Light Come On?

The check engine light is an icon on your dashboard display that tells you that something is wrong somewhere in your vehicle's systems. The check engine light itself will not tell you the specific thing that is wrong, but simply that there is an issue, whether it be major or minor, with your car.  

There are many reasons why your check engine light can come on. Some of these reasons are quick, easy, and inexpensive fixes, and some are more complicated, costly problems. Some of the most common triggers of the check engine light include: 

  • Bad fuel injectors 
  • Problems with the evaporative emission control system 
  • Plugged catalytic converter 
  • Coolant leaking into the combustion chamber
  • Loose gas cap 
  • Bad oxygen sensor in the exhaust system 
  • Problems with the engine thermostat 
  • Faulty spark plugs, ignition coil, or wiring 
  • Malfunctioning mass air flow sensor 

Does The Check Engine Light Mean My Car Has A Serious Problem?

As mentioned above, it’s almost impossible to know the reason for the check engine light going on without bringing the vehicle to a mechanic for a readout. The check engine light can be triggered by something as silly as a loose gas cap or something as serious as total engine failure. There is really no way to tell how serious the problem is until you bring your car to a mechanic for a check engine light readout.

How Long Can I Drive My Car With The Check Engine Light On?

Many drivers ignore this warning signal, while others prefer to act on it immediately. When the light comes on, be sure to pay utmost attention to the feel, sound, and things emitting from your vehicle. If you notice any change in temperature, sound, or any of its functions, it is best to drive to your mechanic at your earliest convenience. If you notice that your check engine light is persistently blinking on and off, it is best you stop driving and park the car at a safe spot. Then, call a tow service to take it to your repair shop.

How Do I Get My Check Engine Light To Turn Off?

If the check engine light does not go off by itself after a short time, it is best to take your vehicle to a local mechanic. The only way to turn the light off is by fixing any problems that may have occurred!

Contact German AutoSport In Amesbury, MA!

If you have any questions about the check engine light in your vehicle or would like a courtesy check engine light readout, contact German AutoSport! Located in Amesbury, we provide the Northeastern Massachusetts region with vehicle maintenance services for almost all makes! Contact us today by calling us at (978) 388-1288 or by filling out the contact form on our website!