A new warning light on your dashboard? You don’t find out why it doesn’t switch off… It’s typical, an auto is complicated and there are multiple reasons why a light might occur. In cases where your glow plug light comes on while driving your Ford Mondeo, it might suggest some problems. In this article, we will do everything we can to support you see things more clearly. First, we will discover how the preheating light on your Ford Mondeo functions, and then the different explanations it lights up when you are driving

glow-plug-light-ford-mondeo

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

The primary purpose of the engine glow plug light, which is in most cases represented by a yellow coil, is to guarantee that your glow plugs are working correctly. In reality, it must light up when you switch on your Ford Mondeo 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 expected to stay or come on while driving with your car. But, if it turns on while driving, it may suggest different failures, we will try to detail the main ones.

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

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

My Ford Mondeo glow light comes on and I’m having a loss of power

The first probability is that you identify that your glow plug light comes on while driving your Ford Mondeo and that you also experience a loss of power. In such a case, some problems can explain its lightning. Here is a list of the main reasons:

  • Problem of EGR valve, in reality, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this instance, it is expected that your preheat light comes on while driving on Ford Mondeo because it is one of the failures of which it is supposed to notify you. Have the status of your valve inspected
  • Issue 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 perturbation in the operation of the turbo.
  • Issue related 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 performing.
  • Finally, the last problem that could lead to a glow indicator light on your Ford Mondeo 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 Mondeo

To finish , we’ll give you the explanations for a glow plug light that comes on on your Ford Mondeo without you feeling any difference in power or car behaviour. Ordinarily, 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 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 encourage you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error

    • To discover more tips on the Ford Mondeo, take a look at the Ford Mondeo category.