A new warning light on your dashboard? You don’t understand why it doesn’t shut off… It’s typical, a vehicle is complex and there are various causes why a light might come on. In cases where your glow plug light comes on while driving your Ford Fusion, it might point out several problems. In this post, we will do anything we can to support you see things more clearly. First, we will discover how the preheating light on your Ford Fusion operates, and then the different motives it lights up when you are driving

glow-plug-light-ford-fusion

What is the goal of my Ford Fusion glow plug light?

The main role of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to ensure that your glow plugs are working properly. In fact, it must light up when you switch on your Ford Fusion 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 vehicle. Nevertheless, if it turns on while driving, it may reveal several issues, we will try to describe the most important ones.

What to do if the glow plug light comes on while driving on my Ford Fusion?

A glow light that comes on while driving on your Ford Fusion or at any other time other than when the engine is started is meant to notify you to a problem other than your spark plugs, we will take a look at this right now. Whatever the case, a switch to the diagnostic tool will allow you to carefully translate the cause for the light up of your glow light.

My Ford Fusion glow light comes on and I’m experiencing a loss of power

The first situation is that you identify that your glow plug light comes on while driving your Ford Fusion and that you also encounter a loss of power. In such a case, several concerns can describe its lightning. Here is a list of the most important causes:

  • Problem of EGR valve, in reality, if you undergo a loss of power, it is possible that your EGR valve is clogged, in this case, it is obvious that your preheat light comes on while driving on Ford Fusion because it is one of the failures of which it is intended to warn you. Have the status of your valve checked out
  • Issue associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can lead to turbo boost and a perturbation in the operation of the turbo.
  • Issue 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 functioning.
  • Finally, the last problem that could lead to a glow indicator light on your Ford Fusion coupled with a loss of power, is that your fuel filter is too dirty, you should come to feel 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 Ford Fusion

To conclude, we’ll give you the motives for a glow plug light that comes on on your Ford Fusion without you feeling any difference in power or 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, check the other solutions first because it is not easy to find it alone, we suggest you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you want more tutorials on the Ford Fusion, go to our Ford Fusion category.