A new warning light on your dashboard? You don’t figure out why it doesn’t turn off… It’s normal, a vehicle is elaborate and there are many motives why a light may occur. If your glow plug light comes on while driving your Fiat 500, it may possibly reveal several 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 Fiat 500 operates, and then the different causes it lights up when you are driving

glow-plug-light-fiat-500

What is the goal of my Fiat 500 glow plug light?

The main intent of the engine glow plug light, which is generally symbolized by a yellow coil, is to assure that your glow plugs are working properly. Indeed, it must light up when you switch on your Fiat 500 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 reveal several troubles, we will try to summarize the main ones.

What to do if the glow plug light comes on while driving on my Fiat 500?

A glow light that comes on while driving on your Fiat 500 or at any other time other than when the engine is started is intended to alert you to a problem other than your spark plugs, we will take a look at this right now. In any case, a switch to the diagnostic tool will allow you to precisely translate the cause for the light up of your glow light.

My Fiat 500 glow light comes on and I’m having a loss of power

The first probability is that you notice that your glow plug light comes on while driving your Fiat 500 and that you also knowledge a loss of power. In such a case, several concerns can demonstrate its lightning. Here is a list of the main motives:

  • Problem of EGR valve, indeed, if you go through a loss of power, it is possible that your EGR valve is clogged, in this instance, it is rational that your preheat light comes on while driving on Fiat 500 because it is one of the issue of which it is meant to notify you. Have the status of your valve tested
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about turbo boost and a disturbance in the operation of the turbo.
  • Trouble linked 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 issue that could lead to a glow indicator light on your Fiat 500 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 500

Finally, we’ll give you the causes for a glow plug light that comes on on your Fiat 500 without you feeling any difference in power or motor vehicle behaviour. Generally, 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 fix the issue.
  • You have a false contact somewhere in your electrical circuit, test the other solutions 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
  • To discover more tips on the Fiat 500, take a look at the Fiat 500 category.