A new warning light on your dashboard? You don’t understand why it doesn’t shut off… It’s normal, an auto is complex and there are many factors why a light could occur. If it turns out your glow plug light comes on while driving your Chevrolet Express, it may indicate some issues. 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 Express functions, and then the different motives it lights up when you are driving

glow-plug-light-chevrolet-express

What is the goal of my Chevrolet Express glow plug light?

The primary intent of the engine glow plug light, which is generally symbolized by a yellow coil, is to ensure that your glow plugs are working correctly. In reality, it must light up when you switch on your Chevrolet Express 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. But, if it comes on while driving, it may suggest different failures, we will try to detail the most important ones.

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

A glow light that comes on while driving on your Chevrolet Express or at any other time other than when the engine is started is intended to notify you to a fault other than your spark plugs, we will check out this right now. Whatever the case, connecting your vehicle to the diagnostic tool will allow you to precisely translate the explanation for the light up of your glow light.

My Chevrolet Express glow light comes on and I’m having a loss of power

The first situation is that you detect that your glow plug light comes on while driving your Chevrolet Express and that you also encounter a loss of power. In this case, some problems can describe its lightning. Here is a list of the most important factors:

  • Issue of EGR valve, in reality, if you are affected 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 Chevrolet Express because it is one of the problem of which it is intended to warn you. Have the status of your valve looked at
  • Problem related to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can cause turbo boost and a perturbation in the performance of the turbo.
  • Problem related 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 performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Chevrolet Express 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 Chevrolet Express

Finally, we’ll give you the motives for a glow plug light that comes on on your Chevrolet Express without you feeling any difference in power or motor vehicle behaviour. Ordinarily, 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 get rid of 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 recommend you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • To discover more tips on the Chevrolet Express, take a look at the Chevrolet Express category.