A new warning light on your dashboard? You don’t find out why it doesn’t switch off… It’s typical, a car is complex and there are multiple motives why a light might occur. In cases where your glow plug light comes on while driving your Hyundai Santa Fe, it might signify different concerns. On this page, we will do anything we can to help you see things more clearly. First, we will discover how the preheating light on your Hyundai Santa Fe operates, and then the different causes it lights up when you are driving

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What is the purpose of my Hyundai Santa Fe glow plug light?

The primary intent of the engine glow plug light, which is generally symbolized by a yellow coil, is to ensure that your glow plugs are working effectively. In reality, it must light up when you switch on your Hyundai Santa Fe 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 automobile. But, if it comes on while driving, it may suggest several failures, we will try to summarize the main ones.

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

A glow light that comes on while driving on your Hyundai Santa Fe 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 understand the motive for the light up of your glow light.

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

The first situation is that you notice that your glow plug light comes on while driving your Hyundai Santa Fe and that you also experience a loss of power. In such a case, different problems can describe its presence. Here is a list of the main motives:

  • Trouble of EGR valve, indeed, if you suffer a loss of power, it is possible that your EGR valve is blocked, in this case, it is logical that your preheat light comes on while driving on Hyundai Santa Fe because it is one of the problem of which it is expected to warn you. Have the status of your valve examined
  • Trouble related to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can lead to turbo boost and a perturbation in the performance of the turbo.
  • Trouble in connection with 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 functioning.
  • Finally, the last trouble that could lead to a glow indicator light on your Hyundai Santa Fe 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 Santa Fe

Finally, we’ll give you the causes for a glow plug light that comes on on your Hyundai Santa Fe without you feeling any difference in power or automobile behaviour. In general, this is an electronic fault:

  • 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, check the other options first because it is not easy to find it alone, we suggest you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error

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