A new light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, an automobile is complex and there are various causes why a light might come on. If your glow plug light comes on while driving your hyundai i30, it might point out different things. On this page, we will do everything we can to help you see things more clearly. First, we will see how the preheating light on your hyundai i30 functions, and then the different motives it lights up when you are driving

glow-plug-light-hyundai-i30

What is the purpose of my hyundai i30 glow plug light?

The primary goal of the engine glow plug light, which is generally symbolized by a yellow coil, is to guarantee that your glow plugs are working effectively. In reality, it must light up when you switch on your hyundai i30 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 automobile. However, if it turns on while driving, it may indicate several troubles, we will try to explain the main ones.

What to do if the glow plug light comes on while driving on my hyundai i30?

A glow light that comes on while driving on your hyundai i30 or at any other time other than when the engine is started is intended to alert you to a fault other than your spark plugs, we will take a look at this right now. Whatever the case, a switch to the diagnostic tool will allow you to carefully interpret the motive for the light up of your glow light.

My hyundai i30 glow light comes on and I’m suffering from a loss of power

The first possibility is that you recognize that your glow plug light comes on while driving your hyundai i30 and that you also experience a loss of power. In this case, different problems can describe its lightning. Here is a list of the main causes:

  • Trouble of EGR valve, in reality, if you suffer a loss of power, it is possible that your EGR valve is clogged, in this case, it is logical that your preheat light comes on while driving on hyundai i30 because it is one of the issue of which it is expected to alert you. Have the status of your valve checked
  • Issue associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can result in turbo boost and a disturbance in the performance of the turbo.
  • Issue 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 affect its proper function.
  • Finally, the last issue that could lead to a glow indicator light on your hyundai i30 coupled with a loss of power, is that your fuel filter is too dirty, you should get 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 i30

Finally, we’ll give you the motives for a glow plug light that comes on on your hyundai i30 without you feeling any difference in power or automobile behaviour. In most cases, this is an electronic fault:

  • Glow plug relays or fuses to be swapped out, 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 the other options first because it is not easy to find it alone, we suggest you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • To get more tips on the hyundai i30, take a look at the hyundai i30 category.