A new light on your dashboard? You don’t figure out why it doesn’t shut off… It’s normal, a car is elaborate and there are various reasons why a light may come on. In the event that your glow plug light comes on while driving your Ford Focus C-max, it may possibly signify several concerns. In this article, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Ford Focus C-max operates, and then the different reasons it lights up when you are driving

glow-plug-light-ford-focus-c-max

What is the goal of my Ford Focus C-max glow plug light?

The primary intent of the engine glow plug light, which is generally symbolized by a yellow coil, is to make sure that your glow plugs are working correctly. In reality, it must light up when you switch on your Ford Focus C-max 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. But, if it turns on while driving, it may suggest different failures, we will try to detail the most important ones.

What to do if the glow plug light comes on while driving on my Ford Focus C-max?

A glow light that comes on while driving on your Ford Focus C-max 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 look at this right now. In any case, plug in your car to the diagnostic tool will allow you to carefully translate the explanation for the light up of your glow light.

My Ford Focus C-max glow light comes on and I’m encountering a loss of power

The first situation is that you notice that your glow plug light comes on while driving your Ford Focus C-max and that you also experience a loss of power. In this instance, several problems can demonstrate its presence. Here is a list of the most important reasons:

  • Issue of EGR valve, in fact, if you are affected a loss of power, it is possible that your EGR valve is clogged, in such a case, it is expected that your preheat light comes on while driving on Ford Focus C-max because it is one of the issue of which it is designed to alert you. Have the status of your valve inspected
  • Trouble linked to 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 perturbation in the operation of the turbo.
  • Trouble linked to the injection, either an injector that has seized up or the injection pump that is malfunctioned 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 Ford Focus C-max 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 Ford Focus C-max

Finally, we’ll give you the reasons for a glow plug light that comes on on your Ford Focus C-max without you feeling any difference in power or vehicle behaviour. In most cases, 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 get rid of the problem.
  • You have a false contact somewhere in your electrical circuit, test out the other options first because it is not easy to find it alone, we advise you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • To discover more tips on the Ford Focus C-max, take a look at the Ford Focus C-max category.