A new warning light on your dashboard? You don’t figure out why it doesn’t shut off… It’s typical, a car is complex and there are various causes why a light might occur. In cases where your glow plug light comes on while driving your Cadillac CT6, it may possibly show different problems. In this post, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Cadillac CT6 works, and then the different explanations it lights up when you are driving

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What is the goal of my Cadillac CT6 glow plug light?

The main intent of the engine glow plug light, which is most of the time represented by a yellow coil, is to make sure that your glow plugs are working effectively. Indeed, it must light up when you switch on your Cadillac CT6 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 automobile. Nevertheless, if it turns on while driving, it may indicate different issues, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my Cadillac CT6?

A glow light that comes on while driving on your Cadillac CT6 or at any other time other than when the engine is started is designed to alert you to a fault other than your spark plugs, we will check out this now. No matter the reason, connecting your vehicle to the diagnostic tool will allow you to properly translate the motive for the light up of your glow light.

My Cadillac CT6 glow light comes on and I’m going through a loss of power

The first situation is that you perceive that your glow plug light comes on while driving your Cadillac CT6 and that you also experience a loss of power. In this case, different trouble can explain its lightning. Here is a list of the most important causes:

  • Problem of EGR valve, in fact, 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 Cadillac CT6 because it is one of the failures of which it is supposed 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 lead to turbo boost and a disturbance in the operation of the turbo.
  • Problem in connection with the injection, either an injector that has seized up or the injection pump that is malfunctioned 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 Cadillac CT6 coupled with a loss of power, is that your fuel filter is too dirty, you should come to 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 Cadillac CT6

To conclude, we’ll give you the explanations for a glow plug light that comes on on your Cadillac CT6 without you feeling any difference in power or automobile behaviour. In general, this is an electronic fault:

  • Glow plug relays or fuses to be swapped out, 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 trouble.
  • 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
  • In the event that you have any further questions about the Cadillac CT6, do not hesitate to consult our Cadillac CT6 category.