A new light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, an automobile is complex and there are many factors why a light might come on. If your glow plug light comes on while driving your GMC Acadia, it may possibly show different concerns. On this page, we will do anything we can to support you see things more clearly. First, we will see how the preheating light on your GMC Acadia functions, and then the different reasons it lights up when you are driving

glow-plug-light-gmc-acadia

What is the goal of my GMC Acadia glow plug light?

The primary goal of the engine glow plug light, which is generally symbolized by a yellow coil, is to assure that your glow plugs are working properly. In fact, it must light up when you switch on your GMC Acadia 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 supposed to stay or come on while driving with your vehicle. Nevertheless, if it turns on while driving, it may suggest different failures, we will try to describe the main ones.

What to do if the glow plug light comes on while driving on my GMC Acadia?

A glow light that comes on while driving on your GMC Acadia or at any other time other than when the engine is started is intended to warn you to a fault other than your spark plugs, we will take a look at this now. No matter the reason, a switch to the diagnostic tool will allow you to accurately understand the motive for the light up of your glow light.

My GMC Acadia glow light comes on and I’m encountering a loss of power

The first situation is that you identify that your glow plug light comes on while driving your GMC Acadia and that you also knowledge a loss of power. In such a case, different complications can demonstrate its lightning. Here is a list of the main factors:

  • Trouble of EGR valve, in reality, if you go through 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 GMC Acadia because it is one of the problem of which it is expected to alert you. Have the status of your valve checked
  • Trouble associated with 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.
  • Trouble linked 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 affect its proper functioning.
  • Finally, the last trouble that could lead to a glow indicator light on your GMC Acadia 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 GMC Acadia

Finally, we’ll give you the reasons for a glow plug light that comes on on your GMC Acadia without you feeling any difference in power or vehicle behaviour. In general, this is an electronic fault:

  • Glow plug relays or fuses to be swapped out, test and replace 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 trouble.
  • You have a false contact somewhere in your electrical circuit, check the other solutions first because it is not easy to find it alone, we recommend you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error
  • If you want more guides on the GMC Acadia, go to our GMC Acadia category.