A new light on your dashboard? You don’t figure out why it doesn’t switch off… It’s typical, a car is complex and there are multiple factors why a light might occur. In the event that your glow plug light comes on while driving your Hyundai Genesis, it may show different things. In the following paragraphs, we will do anything we can to support you see things more clearly. First, we will discover how the preheating light on your Hyundai Genesis operates, and then the different explanations it lights up when you are driving

glow-plug-light-hyundai-genesis

What is the role of my Hyundai Genesis glow plug light?

The main role of the engine glow plug light, which is most of the time represented by a yellow coil, is to assure that your glow plugs are working effectively. Indeed, it must light up when you switch on your Hyundai Genesis to tell you that they are heating the intake air in your cylinders and must go out after a few minutes when the engine is running. This preheat light is therefore not meant to stay or come on while driving with your motor vehicle. Nevertheless, if it turns on while driving, it may show multiple issues, we will try to detail the main ones.

What to do if the glow plug light comes on while driving on my Hyundai Genesis?

A glow light that comes on while driving on your Hyundai Genesis or at any other time other than when the engine is started is designed to alert you to a fault other than your spark plugs, we will take a look at this now. No matter the reason, connecting your vehicle to the diagnostic tool will allow you to accurately interpret the explanation for the light up of your glow light.

My Hyundai Genesis glow light comes on and I’m having a loss of power

The first possibility is that you identify that your glow plug light comes on while driving your Hyundai Genesis and that you also experience a loss of power. In this case, different trouble can describe its lightning. Here is a list of the main factors:

  • Problem of EGR valve, indeed, if you go through a loss of power, it is possible that your EGR valve is blocked, in such a case, it is expected that your preheat light comes on while driving on Hyundai Genesis because it is one of the problem of which it is meant to alert you. Have the status of your valve tested
  • Issue related to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can cause turbo boost and a disturbance in the operation of the turbo.
  • Issue linked to the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disturb its proper functioning.
  • Finally, the last issue that could lead to a glow indicator light on your Hyundai Genesis coupled with a loss of power, is that your fuel filter is too dirty, you should feel jerks because of a bad fuel flow in the engine.

My glow plug light comes on or is flashing but no difference on the performance of my Hyundai Genesis

Finally, we’ll give you the explanations for a glow plug light that comes on on your Hyundai Genesis without you feeling any difference in power or motor vehicle behaviour. In general, this is an electronic fault:

  • Glow plug relays or fuses to be changed, test and change if necessary.
  • A contactor/potentiometer on one of your pedals (brake, accelerator or clutch) has failed, often a simple de-seizure will be enough to solve the issue.
  • You have a false contact somewhere in your electrical circuit, test out the other alternatives first because it is not easy to find it alone, we encourage you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any further questions about the Hyundai Genesis, do not hesitate to consult our Hyundai Genesis category.