A new warning light on your dashboard? You don’t understand why it doesn’t turn off… It’s typical, an auto is complicated and there are many factors why a light could occur. In cases where your glow plug light comes on while driving your hyundai i20, it may signal different things. In this post, we will do anything we can to help you see things more clearly. First, we will see how the preheating light on your hyundai i20 works, and then the different causes it lights up when you are driving

glow-plug-light-hyundai-i20

What is the goal of my hyundai i20 glow plug light?

The main purpose of the engine glow plug light, which is most of the time symbolized by a yellow coil, is to make sure that your glow plugs are working correctly. In reality, it must light up when you switch on your hyundai i20 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 expected to stay or come on while driving with your motor vehicle. Nevertheless, if it turns on while driving, it may suggest several failures, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my hyundai i20?

A glow light that comes on while driving on your hyundai i20 or at any other time other than when the engine is started is designed to notify you to a problem other than your spark plugs, we will take a look at this right now. No matter the reason, plug in your car to the diagnostic tool will allow you to accurately translate the explanation for the light up of your glow light.

My hyundai i20 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 i20 and that you also knowledge a loss of power. In this case, different trouble can explain its lightning. Here is a list of the most important factors:

  • Issue of EGR valve, in reality, if you are affected a loss of power, it is possible that your EGR valve is blocked, in such a case, it is obvious that your preheat light comes on while driving on hyundai i20 because it is one of the failures of which it is expected to warn you. Have the status of your valve checked
  • Trouble associated with 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 performance of the turbo.
  • Trouble linked to the injection, either an injector that has seized up or the injection pump that is malfunctioned by filings or other possible foreign bodies that affect its proper function.
  • Finally, the last trouble that could lead to a glow indicator light on your hyundai i20 coupled with a loss of power, is that your fuel filter is too dirty, you should experience 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 i20

To finish , we’ll give you the causes for a glow plug light that comes on on your hyundai i20 without you feeling any difference in power or motor vehicle behaviour. Generally, this is an electronic problem:

  • Glow plug relays or fuses to be swapped out, test and replace 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 get rid of the trouble.
  • 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 recommend you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • If perhaps you have any further questions about the hyundai i20, do not hesitate to consult our hyundai i20 category.