A new light on your dashboard? You don’t find out why it doesn’t shut off… It’s normal, a vehicle is complex and there are multiple factors why a light could occur. If your glow plug light comes on while driving your Ford F 350 , it may possibly show different things. 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 F 350  operates, and then the different causes it lights up when you are driving

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What is the goal of my Ford F 350  glow plug light?

The main goal 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 effectively. In fact, it must light up when you switch on your Ford F 350  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 motor vehicle. Nevertheless, if it comes on while driving, it may show multiple troubles, we will try to describe the main ones.

What to do if the glow plug light comes on while driving on my Ford F 350 ?

A glow light that comes on while driving on your Ford F 350  or at any other time other than when the engine is started is designed to alert you to a problem other than your spark plugs, we will look at this now. No matter the reason, a switch to the diagnostic tool will allow you to precisely translate the motive for the light up of your glow light.

My Ford F 350  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 F 350  and that you also encounter a loss of power. In such a case, different trouble can describe its lightning. Here is a list of the main factors:

  • Trouble of EGR valve, indeed, if you suffer a loss of power, it is possible that your EGR valve is clogged, in such a case, it is rational that your preheat light comes on while driving on Ford F 350  because it is one of the problem of which it is expected to alert you. Have the status of your valve checked
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can bring about turbo boost and a perturbation in the performance of the turbo.
  • Problem related 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 disturb its proper operation.
  • Finally, the last issue that could lead to a glow indicator light on your Ford F 350  coupled with a loss of power, is that your fuel filter is too dirty, you should 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 F 350 

To finish , we’ll give you the causes for a glow plug light that comes on on your Ford F 350  without you feeling any difference in power or motor 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 solve the issue.
  • You have a false contact somewhere in your electrical circuit, test out the other alternatives first because it is not easy to find it alone, we suggest you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error

    • Whenever you have any additional questions about the Ford F 350 , do not hesitate to consult our Ford F 350  category.