A new warning light on your dashboard? You don’t find out why it doesn’t turn off… It’s normal, an automobile is complex and there are many causes why a light could come on. In cases where your glow plug light comes on while driving your Buick Cascada, it may indicate different issues. In this article, we will do everything we can to support you see things more clearly. First, we will discover how the preheating light on your Buick Cascada functions, and then the different motives it lights up when you are driving

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What is the role of my Buick Cascada glow plug light?

The main purpose of the engine glow plug light, which is generally represented by a yellow coil, is to assure that your glow plugs are working properly. Indeed, it must light up when you switch on your Buick Cascada 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 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 Buick Cascada?

A glow light that comes on while driving on your Buick Cascada or at any other time other than when the engine is started is meant to warn you to a problem other than your spark plugs, we will look at this right now. Whatever the case, a switch to the diagnostic tool will allow you to properly understand the reason for the light up of your glow light.

My Buick Cascada 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 Buick Cascada and that you also knowledge a loss of power. In this case, different concerns can explain its presence. Here is a list of the main causes:

  • Trouble of EGR valve, in fact, if you suffer a loss of power, it is possible that your EGR valve is clogged, in such a case, it is obvious that your preheat light comes on while driving on Buick Cascada because it is one of the failures of which it is expected to notify you. Have the status of your valve tested
  • 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 perturbation in the performance of the turbo.
  • Issue relevant 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 disrupt its proper performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Buick Cascada 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 Buick Cascada

To conclude, we’ll give you the motives for a glow plug light that comes on on your Buick Cascada without you feeling any difference in power or automobile 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 get rid of the trouble.
  • You have a false contact somewhere in your electrical circuit, test out the other options first because it is not easy to find it alone, we suggest you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • If perhaps you have any additional questions about the Buick Cascada, do not hesitate to consult our Buick Cascada category.