A new light on your dashboard? You don’t find out why it doesn’t switch off… It’s normal, an automobile is complex and there are many causes why a light might occur. If it turns out your glow plug light comes on while driving your volvo xc70, it might suggest different concerns. In the following paragraphs, we will do everything we can to help you see things more clearly. First, we will see how the preheating light on your volvo xc70 operates, and then the different causes it lights up when you are driving

glow-plug-light-volvo-xc70

What is the role of my volvo xc70 glow plug light?

The primary goal of the engine glow plug light, which is generally represented by a yellow coil, is to make sure that your glow plugs are working effectively. In reality, it must light up when you switch on your volvo xc70 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 car. However, if it turns on while driving, it may indicate several issues, we will try to describe the main ones.

What to do if the glow plug light comes on while driving on my volvo xc70?

A glow light that comes on while driving on your volvo xc70 or at any other time other than when the engine is started is intended to notify you to a problem other than your spark plugs, we will check out this right now. In any case, plug in your car to the diagnostic tool will allow you to carefully understand the motive for the light up of your glow light.

My volvo xc70 glow light comes on and I’m suffering from a loss of power

The first probability is that you identify that your glow plug light comes on while driving your volvo xc70 and that you also knowledge a loss of power. In this case, different complications can demonstrate its presence. Here is a list of the main causes:

  • Issue 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 logical that your preheat light comes on while driving on volvo xc70 because it is one of the problem of which it is expected to alert you. Have the status of your valve checked
  • Trouble linked to 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 performance of the turbo.
  • Trouble linked 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 functioning.
  • Finally, the last issue that could lead to a glow indicator light on your volvo xc70 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 volvo xc70

Finally, we’ll give you the causes for a glow plug light that comes on on your volvo xc70 without you feeling any difference in power or car 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 issue.
  • 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 technician.
  • Faulty injection pressure sensor, ECU error

    • Whenever you have any additional questions about the volvo xc70, do not hesitate to consult our volvo xc70 category.