A new light on your dashboard? You don’t understand why it doesn’t turn off… It’s normal, a car is complex and there are multiple causes why a light might come on. If your glow plug light comes on while driving your Chevrolet Volt, it might show different problems. On this page, we will do anything we can to support you see things more clearly. First, we will find out how the preheating light on your Chevrolet Volt operates, and then the different motives it lights up when you are driving

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What is the role of my Chevrolet Volt glow plug light?

The main role of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to make sure that your glow plugs are working effectively. In fact, it must light up when you switch on your Chevrolet Volt 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 motor vehicle. However, if it turns on while driving, it may reveal several troubles, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my Chevrolet Volt?

A glow light that comes on while driving on your Chevrolet Volt 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. No matter the reason, a switch to the diagnostic tool will allow you to properly interpret the motive for the light up of your glow light.

My Chevrolet Volt glow light comes on and I’m suffering from a loss of power

The first possibility is that you perceive that your glow plug light comes on while driving your Chevrolet Volt and that you also knowledge a loss of power. In such a case, different complications can describe its presence. Here is a list of the most important causes:

  • Problem of EGR valve, in reality, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this case, it is logical that your preheat light comes on while driving on Chevrolet Volt because it is one of the problem of which it is meant to notify you. Have the status of your valve looked at
  • Issue associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can lead to turbo boost and a disturbance in the operation of the turbo.
  • Issue associated 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 performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Chevrolet Volt 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 Chevrolet Volt

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

  • Glow plug relays or fuses to be replaced, 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 solve the trouble.
  • 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 encourage you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • To find more tips on the Chevrolet Volt, take a look at the Chevrolet Volt category.