A new light on your dashboard? You don’t find out why it doesn’t switch off… It’s normal, a vehicle is complicated and there are various factors why a light might come on. If your glow plug light comes on while driving your Opel Vivaro, it may indicate several concerns. In this post, we will do everything we can to support you see things more clearly. First, we will see how the preheating light on your Opel Vivaro operates, and then the different explanations it lights up when you are driving

glow-plug-light-opel-vivaro

What is the goal of my Opel Vivaro glow plug light?

The primary role of the engine glow plug light, which is most of the time represented by a yellow coil, is to assure that your glow plugs are working correctly. Indeed, it must light up when you switch on your Opel Vivaro 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. Nevertheless, if it comes on while driving, it may suggest multiple failures, we will try to explain the most important ones.

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

A glow light that comes on while driving on your Opel Vivaro or at any other time other than when the engine is started is meant to warn you to a problem other than your spark plugs, we will take a look at this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to accurately interpret the explanation for the light up of your glow light.

My Opel Vivaro glow light comes on and I’m encountering a loss of power

The first possibility is that you perceive that your glow plug light comes on while driving your Opel Vivaro and that you also encounter a loss of power. In such a case, several concerns can demonstrate its lightning. Here is a list of the most important factors:

  • Problem 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 rational that your preheat light comes on while driving on Opel Vivaro because it is one of the problem of which it is intended to warn you. Have the status of your valve checked out
  • Problem related to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can cause turbo boost and a disturbance in the performance of the turbo.
  • Problem relevant to the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disturb its proper performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Opel Vivaro 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 Opel Vivaro

To finish , we’ll give you the explanations for a glow plug light that comes on on your Opel Vivaro 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 changed, 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 trouble.
  • 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 advise you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any further questions about the Opel Vivaro, do not hesitate to consult our Opel Vivaro category.