A new warning light on your dashboard? You don’t figure out why it doesn’t turn off… It’s typical, a car is complicated and there are many reasons why a light may come on. If it turns out your glow plug light comes on while driving your Ford Flex, it may possibly signal several 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 Flex works, and then the different explanations it lights up when you are driving

glow-plug-light-ford-flex

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

The primary role 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 reality, it must light up when you switch on your Ford Flex 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 expected to stay or come on while driving with your vehicle. Nevertheless, if it turns 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 Flex?

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

My Ford Flex glow light comes on and I’m suffering from a loss of power

The first situation is that you notice that your glow plug light comes on while driving your Ford Flex and that you also encounter a loss of power. In this instance, several concerns can demonstrate its lightning. Here is a list of the main reasons:

  • Problem 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 expected that your preheat light comes on while driving on Ford Flex because it is one of the problem of which it is expected to warn you. Have the status of your valve inspected
  • Problem related 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 disturbance in the performance of the turbo.
  • Problem linked 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 disturb its proper performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Ford Flex coupled with a loss of power, is that your fuel filter is too dirty, you should encounter 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 Flex

Finally, we’ll give you the explanations for a glow plug light that comes on on your Ford Flex without you feeling any difference in power or vehicle behaviour. Ordinarily, 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 solve the trouble.
  • 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 encourage you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error
  • If you have any additional questions about the Ford Flex, do not hesitate to consult our Ford Flex category.