A new warning light on your dashboard? You don’t understand why it doesn’t shut off… It’s normal, an auto is complicated and there are various causes why a light might occur. If it turns out your glow plug light comes on while driving your Lincoln MKZ, it may indicate different issues. In this article, we will do anything we can to support you see things more clearly. First, we will discover how the preheating light on your Lincoln MKZ works, and then the different causes it lights up when you are driving

glow-plug-light-lincoln-mkz

What is the role of my Lincoln MKZ 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 effectively. In fact, it must light up when you switch on your Lincoln MKZ 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 meant to stay or come on while driving with your car. However, if it comes on while driving, it may show multiple issues, we will try to describe the main ones.

What to do if the glow plug light comes on while driving on my Lincoln MKZ?

A glow light that comes on while driving on your Lincoln MKZ or at any other time other than when the engine is started is intended to alert you to a fault other than your spark plugs, we will look at this right now. In any case, a switch to the diagnostic tool will allow you to precisely understand the motive for the light up of your glow light.

My Lincoln MKZ glow light comes on and I’m experiencing a loss of power

The first probability is that you recognize that your glow plug light comes on while driving your Lincoln MKZ and that you also experience a loss of power. In this case, different problems can describe its presence. Here is a list of the main causes:

  • Problem of EGR valve, in reality, if you go through a loss of power, it is possible that your EGR valve is clogged, in this case, it is logical that your preheat light comes on while driving on Lincoln MKZ because it is one of the issue of which it is designed to alert you. Have the status of your valve checked out
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can cause turbo boost and a disturbance in the operation of the turbo.
  • Trouble related 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 performing.
  • Finally, the last problem that could lead to a glow indicator light on your Lincoln MKZ 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 Lincoln MKZ

To conclude, we’ll give you the causes for a glow plug light that comes on on your Lincoln MKZ without you feeling any difference in power or car behaviour. In most cases, this is an electronic fault:

  • 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 fix 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 auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • If perhaps you have any further questions about the Lincoln MKZ, do not hesitate to consult our Lincoln MKZ category.