A new light on your dashboard? You don’t find out why it doesn’t switch off… It’s normal, a car is complicated and there are many causes why a light might come on. In cases where your glow plug light comes on while driving your Acura MDX, it may possibly point out different issues. On this page, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Acura MDX works, and then the different explanations it lights up when you are driving

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What is the goal of my Acura MDX glow plug light?

The primary purpose of the engine glow plug light, which is most of the time represented by a yellow coil, is to assure that your glow plugs are working effectively. In reality, it must light up when you switch on your Acura MDX 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 meant to stay or come on while driving with your motor vehicle. However, if it comes on while driving, it may suggest different troubles, we will try to point out the most important ones.

What to do if the glow plug light comes on while driving on my Acura MDX?

A glow light that comes on while driving on your Acura MDX 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 check out this now. In any case, plug in your car to the diagnostic tool will allow you to properly understand the reason for the light up of your glow light.

My Acura MDX glow light comes on and I’m going through a loss of power

The first possibility is that you identify that your glow plug light comes on while driving your Acura MDX and that you also experience a loss of power. In such a case, different complications can explain its lightning. Here is a list of the most important causes:

  • Issue of EGR valve, in reality, if you go through 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 Acura MDX because it is one of the failures of which it is expected to notify you. Have the status of your valve checked
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can cause turbo boost and a perturbation in the operation of the turbo.
  • Problem associated with 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 functioning.
  • Finally, the last issue that could lead to a glow indicator light on your Acura MDX 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 Acura MDX

To conclude, we’ll give you the explanations for a glow plug light that comes on on your Acura MDX without you feeling any difference in power or motor vehicle behaviour. Generally, this is an electronic fault:

  • 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 get rid of 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 recommend you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any additional questions about the Acura MDX, do not hesitate to consult our Acura MDX category.