A new warning light on your dashboard? You don’t understand why it doesn’t shut off… It’s typical, an auto is complex and there are many reasons why a light may come on. In the event that your glow plug light comes on while driving your Ford Mustang, it may signal different things. In this post, we will do everything we can to support you see things more clearly. First, we will see how the preheating light on your Ford Mustang functions, and then the different reasons it lights up when you are driving

glow-plug-light-ford-mustang

What is the role of my Ford Mustang glow plug light?

The primary goal of the engine glow plug light, which is most of the time symbolized by a yellow coil, is to ensure that your glow plugs are working properly. Indeed, it must light up when you switch on your Ford Mustang 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 supposed to stay or come on while driving with your motor vehicle. But, if it turns on while driving, it may reveal multiple failures, we will try to describe the most important ones.

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

A glow light that comes on while driving on your Ford Mustang or at any other time other than when the engine is started is meant to warn 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 properly interpret the cause for the light up of your glow light.

My Ford Mustang glow light comes on and I’m going through a loss of power

The first situation is that you recognize that your glow plug light comes on while driving your Ford Mustang and that you also encounter a loss of power. In this case, different concerns can explain its lightning. Here is a list of the most important reasons:

  • Problem of EGR valve, in reality, if you suffer 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 Mustang because it is one of the failures of which it is supposed to notify you. Have the status of your valve examined
  • Problem 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.
  • Problem relevant 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 performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Ford Mustang coupled with a loss of power, is that your fuel filter is too dirty, you should experience 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 Mustang

Finally, we’ll give you the reasons for a glow plug light that comes on on your Ford Mustang without you feeling any difference in power or motor vehicle behaviour. Ordinarily, this is an electronic problem:

  • Glow plug relays or fuses to be swapped out, 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 resolve the trouble.
  • You have a false contact somewhere in your electrical circuit, test out the other solutions first because it is not easy to find it alone, we advise you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you want more guides on the Ford Mustang, go to our Ford Mustang category.