A new light on your dashboard? You don’t figure out why it doesn’t turn off… It’s normal, a car is complex and there are various reasons why a light may occur. In the event that your glow plug light comes on while driving your Cadillac Escalade, it may possibly signal several things. In the following paragraphs, we will do everything we can to support you see things more clearly. First, we will find out how the preheating light on your Cadillac Escalade functions, and then the different explanations it lights up when you are driving

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What is the role of my Cadillac Escalade glow plug light?

The main intent 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 Cadillac Escalade 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 motor vehicle. But, if it comes on while driving, it may reveal different failures, we will try to explain the main ones.

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

A glow light that comes on while driving on your Cadillac Escalade or at any other time other than when the engine is started is meant to notify you to a problem other than your spark plugs, we will take a look at this now. In any case, a switch to the diagnostic tool will allow you to precisely interpret the explanation for the light up of your glow light.

My Cadillac Escalade glow light comes on and I’m encountering a loss of power

The first possibility is that you detect that your glow plug light comes on while driving your Cadillac Escalade and that you also encounter a loss of power. In this case, several concerns can describe its presence. Here is a list of the main reasons:

  • Trouble of EGR valve, indeed, if you suffer 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 Escalade because it is one of the problem of which it is intended to notify you. Have the status of your valve examined
  • Issue associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can result in turbo boost and a disturbance in the operation of the turbo.
  • Issue relevant 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 affect its proper functioning.
  • Finally, the last trouble that could lead to a glow indicator light on your Cadillac Escalade coupled with a loss of power, is that your fuel filter is too dirty, you should experience 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 Escalade

To finish , we’ll give you the explanations for a glow plug light that comes on on your Cadillac Escalade without you feeling any difference in power or motor vehicle behaviour. In general, 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 resolve the trouble.
  • You have a false contact somewhere in your electrical circuit, check the other alternatives first because it is not easy to find it alone, we suggest you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • Whenever you have any additional questions about the Cadillac Escalade, do not hesitate to consult our Cadillac Escalade category.