A new light on your dashboard? You don’t figure out why it doesn’t shut off… It’s typical, a car is elaborate and there are various factors why a light could come on. If your glow plug light comes on while driving your hyundai i40, it may possibly show some issues. In this article, we will do anything we can to support you see things more clearly. First, we will see how the preheating light on your hyundai i40 operates, and then the different explanations it lights up when you are driving

glow-plug-light-hyundai-i40

What is the purpose of my hyundai i40 glow plug light?

The main goal of the engine glow plug light, which is generally symbolized by a yellow coil, is to assure that your glow plugs are working correctly. Indeed, it must light up when you switch on your hyundai i40 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 expected to stay or come on while driving with your automobile. But, if it comes 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 i40?

A glow light that comes on while driving on your hyundai i40 or at any other time other than when the engine is started is designed to notify you to a fault other than your spark plugs, we will look at this now. No matter the reason, a switch to the diagnostic tool will allow you to precisely translate the cause for the light up of your glow light.

My hyundai i40 glow light comes on and I’m suffering from a loss of power

The first probability is that you notice that your glow plug light comes on while driving your hyundai i40 and that you also experience a loss of power. In this case, some complications can demonstrate its lightning. Here is a list of the main factors:

  • Trouble of EGR valve, in reality, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this instance, it is expected that your preheat light comes on while driving on hyundai i40 because it is one of the problem of which it is expected to warn you. Have the status of your valve inspected
  • 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 in connection with the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disrupt its proper performance.
  • Finally, the last issue that could lead to a glow indicator light on your hyundai i40 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 i40

Finally, we’ll give you the explanations for a glow plug light that comes on on your hyundai i40 without you feeling any difference in power or automobile behaviour. Generally, 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 get rid of 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 auto technician.
  • Faulty injection pressure sensor, ECU error

    • If you want more guides on the hyundai i40, go to our hyundai i40 category.