A new light on your dashboard? You don’t figure out why it doesn’t turn off… It’s typical, a vehicle is elaborate and there are multiple reasons why a light may come on. In the event that your glow plug light comes on while driving your Fiat Grande Punto, it may indicate some problems. 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 Fiat Grande Punto operates, and then the different reasons it lights up when you are driving

glow-plug-light-fiat-grande-punto

What is the purpose of my Fiat Grande Punto glow plug light?

The main purpose of the engine glow plug light, which is most of the time represented by a yellow coil, is to guarantee that your glow plugs are working effectively. In fact, it must light up when you switch on your Fiat Grande Punto 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 automobile. But, if it comes on while driving, it may suggest 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 Fiat Grande Punto?

A glow light that comes on while driving on your Fiat Grande Punto or at any other time other than when the engine is started is designed to warn you to a fault other than your spark plugs, we will check out this right now. Whatever the case, connecting your vehicle to the diagnostic tool will allow you to precisely interpret the motive for the light up of your glow light.

My Fiat Grande Punto glow light comes on and I’m going through a loss of power

The first situation is that you recognize that your glow plug light comes on while driving your Fiat Grande Punto and that you also experience a loss of power. In such a case, some trouble can explain its lightning. Here is a list of the most important reasons:

  • Issue of EGR valve, indeed, if you are affected 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 Fiat Grande Punto because it is one of the problem of which it is meant to warn you. Have the status of your valve tested
  • 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 broken by filings or other possible foreign bodies that disrupt its proper performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Fiat Grande Punto 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 Fiat Grande Punto

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Fiat Grande Punto 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 solve the trouble.
  • You have a false contact somewhere in your electrical circuit, test the other alternatives first because it is not easy to find it alone, we encourage you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error

    • If you have any additional questions about the Fiat Grande Punto, do not hesitate to consult our Fiat Grande Punto category.