A new light on your dashboard? You don’t find out why it doesn’t shut off… It’s typical, an automobile is complicated and there are many factors why a light might occur. In the event that your glow plug light comes on while driving your Opel Mokka, it might signal different concerns. On this page, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Opel Mokka operates, and then the different motives it lights up when you are driving

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What is the role of my Opel Mokka glow plug light?

The main role 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 properly. Indeed, it must light up when you switch on your Opel Mokka 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 vehicle. But, if it turns on while driving, it may show several troubles, we will try to describe the most important ones.

What to do if the glow plug light comes on while driving on my Opel Mokka?

A glow light that comes on while driving on your Opel Mokka or at any other time other than when the engine is started is meant to inform you to a problem other than your spark plugs, we will look at this now. In any case, 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 Opel Mokka glow light comes on and I’m going through a loss of power

The first possibility is that you notice that your glow plug light comes on while driving your Opel Mokka and that you also encounter a loss of power. In this case, different problems can explain its presence. Here is a list of the most important factors:

  • Trouble of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is blocked, in this case, it is expected that your preheat light comes on while driving on Opel Mokka because it is one of the problem of which it is intended to notify you. Have the status of your valve checked out
  • Trouble linked 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 perturbation in the performance of the turbo.
  • Trouble linked 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 performing.
  • Finally, the last problem that could lead to a glow indicator light on your Opel Mokka 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 Opel Mokka

To finish , we’ll give you the motives for a glow plug light that comes on on your Opel Mokka without you feeling any difference in power or vehicle behaviour. In most cases, this is an electronic problem:

  • 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 problem.
  • 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 suggest you to go to your technician.
  • Faulty injection pressure sensor, ECU error
  • To get more tips on the Opel Mokka, take a look at the Opel Mokka category.