A new light on your dashboard? You don’t find out why it doesn’t switch off… It’s normal, an auto is complex and there are various factors why a light could come on. If your glow plug light comes on while driving your Ford C-max 2, it may possibly suggest several problems. On this page, we will do everything we can to support you see things more clearly. First, we will discover how the preheating light on your Ford C-max 2 operates, and then the different causes it lights up when you are driving

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What is the purpose of my Ford C-max 2 glow plug light?

The main goal of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to assure that your glow plugs are working correctly. In fact, it must light up when you switch on your Ford C-max 2 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 car. However, if it turns on while driving, it may show multiple failures, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Ford C-max 2?

A glow light that comes on while driving on your Ford C-max 2 or at any other time other than when the engine is started is intended to notify you to a fault other than your spark plugs, we will take a look at this right now. Whatever the case, connecting your vehicle to the diagnostic tool will allow you to precisely understand the cause for the light up of your glow light.

My Ford C-max 2 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 Ford C-max 2 and that you also encounter a loss of power. In such a case, several concerns can demonstrate its presence. Here is a list of the most important factors:

  • Trouble of EGR valve, in reality, if you undergo a loss of power, it is possible that your EGR valve is blocked, in this instance, it is obvious that your preheat light comes on while driving on Ford C-max 2 because it is one of the failures of which it is expected to notify 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 lead to turbo boost and a perturbation in the operation of the turbo.
  • Trouble related 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 operation.
  • Finally, the last problem that could lead to a glow indicator light on your Ford C-max 2 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 C-max 2

Finally, we’ll give you the causes for a glow plug light that comes on on your Ford C-max 2 without you feeling any difference in power or car behaviour. In general, this is an electronic fault:

  • Glow plug relays or fuses to be swapped out, 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 get rid of the problem.
  • 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 advise you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any additional questions about the Ford C-max 2, do not hesitate to consult our Ford C-max 2 category.