A new warning light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, a car is complicated and there are multiple factors why a light may come on. In the event that your glow plug light comes on while driving your Kia Sorento, it may possibly show some issues. In this post, we will do anything we can to support you see things more clearly. First, we will find out how the preheating light on your Kia Sorento works, and then the different causes it lights up when you are driving

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What is the role of my Kia Sorento 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 Kia Sorento 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. But, if it turns on while driving, it may indicate several issues, we will try to point out the most important ones.

What to do if the glow plug light comes on while driving on my Kia Sorento?

A glow light that comes on while driving on your Kia Sorento 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 now. Whatever the case, connecting your vehicle to the diagnostic tool will allow you to precisely understand the reason for the light up of your glow light.

My Kia Sorento glow light comes on and I’m encountering a loss of power

The first possibility is that you perceive that your glow plug light comes on while driving your Kia Sorento and that you also encounter a loss of power. In such a case, some trouble can describe its presence. Here is a list of the most important factors:

  • Trouble of EGR valve, in fact, if you suffer a loss of power, it is possible that your EGR valve is blocked, in such a case, it is rational that your preheat light comes on while driving on Kia Sorento because it is one of the problem of which it is supposed to notify you. Have the status of your valve checked
  • Issue related to 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 destroyed 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 Kia Sorento 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 Kia Sorento

To conclude, we’ll give you the causes for a glow plug light that comes on on your Kia Sorento without you feeling any difference in power or motor vehicle behaviour. Generally, 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 fix 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 mechanic.
  • Faulty injection pressure sensor, ECU error
  • If perhaps you have any additional questions about the Kia Sorento, do not hesitate to consult our Kia Sorento category.