A new light on your dashboard? You don’t figure out why it doesn’t turn off… It’s normal, a vehicle is complex and there are multiple causes why a light may come on. If it turns out your glow plug light comes on while driving your Nissan Terrano, it may suggest some issues. In this article, we will do everything we can to help you see things more clearly. First, we will find out how the preheating light on your Nissan Terrano functions, and then the different causes it lights up when you are driving

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What is the role of my Nissan Terrano glow plug light?

The main purpose of the engine glow plug light, which is most of the time symbolized by a yellow coil, is to ensure that your glow plugs are working properly. Indeed, it must light up when you switch on your Nissan Terrano 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 car. But, if it turns on while driving, it may suggest different issues, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my Nissan Terrano?

A glow light that comes on while driving on your Nissan Terrano 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 check out this now. Whatever the case, plug in your car to the diagnostic tool will allow you to carefully understand the explanation for the light up of your glow light.

My Nissan Terrano glow light comes on and I’m encountering a loss of power

The first probability is that you recognize that your glow plug light comes on while driving your Nissan Terrano and that you also encounter a loss of power. In this case, some trouble can demonstrate its presence. Here is a list of the most important causes:

  • Trouble of EGR valve, in reality, if you go through 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 Nissan Terrano because it is one of the issue of which it is supposed to notify you. Have the status of your valve checked out
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can result in turbo boost and a disturbance in the operation of the turbo.
  • Trouble relevant 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 function.
  • Finally, the last problem that could lead to a glow indicator light on your Nissan Terrano 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 Nissan Terrano

Finally, we’ll give you the causes for a glow plug light that comes on on your Nissan Terrano without you feeling any difference in power or car behaviour. In most cases, this is an electronic fault:

  • 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 problem.
  • You have a false contact somewhere in your electrical circuit, test the other options 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 discover more tips on the Nissan Terrano, take a look at the Nissan Terrano category.