A new light on your dashboard? You don’t figure out why it doesn’t shut off… It’s normal, a vehicle is complex and there are multiple factors why a light could come on. If your glow plug light comes on while driving your Renault Master 2, it may possibly indicate several things. In the following paragraphs, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Renault Master 2 functions, and then the different reasons it lights up when you are driving

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What is the role of my Renault Master 2 glow plug light?

The main role of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to guarantee that your glow plugs are working effectively. In reality, it must light up when you switch on your Renault Master 2 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 supposed to stay or come on while driving with your automobile. However, if it turns on while driving, it may reveal several failures, we will try to explain the main ones.

What to do if the glow plug light comes on while driving on my Renault Master 2?

A glow light that comes on while driving on your Renault Master 2 or at any other time other than when the engine is started is meant to alert you to a fault other than your spark plugs, we will look at this now. Whatever the case, connecting your vehicle to the diagnostic tool will allow you to accurately interpret the motive for the light up of your glow light.

My Renault Master 2 glow light comes on and I’m experiencing a loss of power

The first possibility is that you identify that your glow plug light comes on while driving your Renault Master 2 and that you also experience a loss of power. In this case, several trouble can demonstrate its presence. Here is a list of the main factors:

  • Issue of EGR valve, in fact, if you are affected a loss of power, it is possible that your EGR valve is blocked, in such a case, it is expected that your preheat light comes on while driving on Renault Master 2 because it is one of the issue of which it is expected to alert you. Have the status of your valve checked
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about turbo boost and a disturbance in the performance of the turbo.
  • Problem in connection with the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that affect its proper operation.
  • Finally, the last trouble that could lead to a glow indicator light on your Renault Master 2 coupled with a loss of power, is that your fuel filter is too dirty, you should get 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 Renault Master 2

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Renault Master 2 without you feeling any difference in power or automobile behaviour. Generally, this is an electronic fault:

  • Glow plug relays or fuses to be changed, 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 resolve the trouble.
  • You have a false contact somewhere in your electrical circuit, check the other alternatives first because it is not easy to find it alone, we advise you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you wish more guides on the Renault Master 2, go to our Renault Master 2 category.