A new light on your dashboard? You don’t find out why it doesn’t turn off… It’s typical, a car is complex and there are multiple factors why a light might occur. If your glow plug light comes on while driving your Citroen Jumper 2, it might indicate some things. In this post, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Citroen Jumper 2 works, and then the different motives it lights up when you are driving

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What is the goal of my Citroen Jumper 2 glow plug light?

The main intent of the engine glow plug light, which is most of the time symbolized by a yellow coil, is to assure that your glow plugs are working effectively. In reality, it must light up when you switch on your Citroen Jumper 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 meant to stay or come on while driving with your motor vehicle. Nevertheless, if it comes on while driving, it may reveal multiple issues, we will try to explain the main ones.

What to do if the glow plug light comes on while driving on my Citroen Jumper 2?

A glow light that comes on while driving on your Citroen Jumper 2 or at any other time other than when the engine is started is designed to warn you to a problem other than your spark plugs, we will look at this right now. No matter the reason, plug in your car to the diagnostic tool will allow you to accurately understand the explanation for the light up of your glow light.

My Citroen Jumper 2 glow light comes on and I’m going through a loss of power

The first situation is that you identify that your glow plug light comes on while driving your Citroen Jumper 2 and that you also encounter a loss of power. In this case, some complications can explain its lightning. Here is a list of the main factors:

  • Problem of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is clogged, in this case, it is logical that your preheat light comes on while driving on Citroen Jumper 2 because it is one of the failures of which it is supposed to alert you. Have the status of your valve inspected
  • Problem associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can bring about turbo boost and a disturbance in the operation of the turbo.
  • Problem linked to the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disrupt its proper performance.
  • Finally, the last problem that could lead to a glow indicator light on your Citroen Jumper 2 coupled with a loss of power, is that your fuel filter is too dirty, you should encounter 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 Citroen Jumper 2

To conclude, we’ll give you the motives for a glow plug light that comes on on your Citroen Jumper 2 without you feeling any difference in power or motor vehicle behaviour. In general, 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 get rid of the problem.
  • You have a false contact somewhere in your electrical circuit, test out the other options 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 want more tutorials on the Citroen Jumper 2, go to our Citroen Jumper 2 category.