A new light on your dashboard? You don’t figure out why it doesn’t shut off… It’s typical, an auto is elaborate and there are many causes why a light could come on. If your glow plug light comes on while driving your Hyundai Ioniq, it might signal different things. On this page, we will do everything we can to support you see things more clearly. First, we will find out how the preheating light on your Hyundai Ioniq works, and then the different reasons it lights up when you are driving

glow-plug-light-hyundai-ioniq

What is the purpose of my Hyundai Ioniq glow plug light?

The main intent of the engine glow plug light, which is generally symbolized by a yellow coil, is to ensure that your glow plugs are working correctly. Indeed, it must light up when you switch on your Hyundai Ioniq to tell you that they are heating the intake air in your cylinders and must go out after a few moments when the engine is running. This preheat light is therefore not meant to stay or come on while driving with your car. Nevertheless, if it turns on while driving, it may suggest several troubles, we will try to describe the main ones.

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

A glow light that comes on while driving on your Hyundai Ioniq or at any other time other than when the engine is started is meant to alert you to a problem other than your spark plugs, we will look at this right now. Whatever the case, plug in your car to the diagnostic tool will allow you to carefully translate the explanation for the light up of your glow light.

My Hyundai Ioniq glow light comes on and I’m suffering from a loss of power

The first possibility is that you detect that your glow plug light comes on while driving your Hyundai Ioniq and that you also knowledge a loss of power. In this instance, different trouble can explain its presence. Here is a list of the main causes:

  • Issue of EGR valve, in fact, if you go through a loss of power, it is possible that your EGR valve is blocked, in this case, it is rational that your preheat light comes on while driving on Hyundai Ioniq because it is one of the failures of which it is intended to notify you. Have the status of your valve checked
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about turbo boost and a perturbation in the operation of the turbo.
  • Problem related to the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disturb its proper operation.
  • Finally, the last problem that could lead to a glow indicator light on your Hyundai Ioniq coupled with a loss of power, is that your fuel filter is too dirty, you should come to 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 Ioniq

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Hyundai Ioniq without you feeling any difference in power or car behaviour. Ordinarily, this is an electronic problem:

  • Glow plug relays or fuses to be replaced, 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 problem.
  • You have a false contact somewhere in your electrical circuit, check the other solutions first because it is not easy to find it alone, we encourage you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • If you wish more guides on the Hyundai Ioniq, go to our Hyundai Ioniq category.