A new light on your dashboard? You don’t understand why it doesn’t turn off… It’s normal, a vehicle is elaborate and there are various reasons why a light may come on. If it turns out your glow plug light comes on while driving your Renault Trafic 3, it may indicate different issues. In this article, we will do anything we can to help you see things more clearly. First, we will see how the preheating light on your Renault Trafic 3 works, and then the different motives it lights up when you are driving

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What is the role of my Renault Trafic 3 glow plug light?

The primary intent of the engine glow plug light, which is in most cases represented by a yellow coil, is to make sure that your glow plugs are working properly. In reality, it must light up when you switch on your Renault Trafic 3 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. However, if it comes on while driving, it may indicate multiple troubles, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Renault Trafic 3?

A glow light that comes on while driving on your Renault Trafic 3 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 check out this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to accurately interpret the reason for the light up of your glow light.

My Renault Trafic 3 glow light comes on and I’m encountering a loss of power

The first possibility is that you detect that your glow plug light comes on while driving your Renault Trafic 3 and that you also knowledge a loss of power. In such a case, different problems can describe its presence. Here is a list of the most important reasons:

  • Trouble of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is clogged, in this instance, it is logical that your preheat light comes on while driving on Renault Trafic 3 because it is one of the problem of which it is supposed to warn you. Have the status of your valve checked
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can cause turbo boost and a perturbation in the performance of the turbo.
  • Trouble associated 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 affect its proper performance.
  • Finally, the last problem that could lead to a glow indicator light on your Renault Trafic 3 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 Renault Trafic 3

Finally, we’ll give you the motives for a glow plug light that comes on on your Renault Trafic 3 without you feeling any difference in power or motor vehicle behaviour. In most cases, this is an electronic fault:

  • 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 problem.
  • 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 mechanic.
  • Faulty injection pressure sensor, ECU error

    • If perhaps you have any further questions about the Renault Trafic 3, do not hesitate to consult our Renault Trafic 3 category.