A new warning light on your dashboard? You don’t figure out why it doesn’t turn off… It’s typical, an auto is complicated and there are multiple reasons why a light could occur. In the event that your glow plug light comes on while driving your Subaru Crosstrek, it may possibly indicate several 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 Subaru Crosstrek functions, and then the different motives it lights up when you are driving

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What is the purpose of my Subaru Crosstrek glow plug light?

The primary intent 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. Indeed, it must light up when you switch on your Subaru Crosstrek 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 supposed to stay or come on while driving with your car. Nevertheless, if it turns on while driving, it may indicate different failures, we will try to explain the most important ones.

What to do if the glow plug light comes on while driving on my Subaru Crosstrek?

A glow light that comes on while driving on your Subaru Crosstrek 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 take a look at this now. No matter the reason, connecting your vehicle to the diagnostic tool will allow you to carefully translate the motive for the light up of your glow light.

My Subaru Crosstrek glow light comes on and I’m encountering a loss of power

The first probability is that you identify that your glow plug light comes on while driving your Subaru Crosstrek and that you also knowledge a loss of power. In this instance, several trouble can demonstrate its presence. Here is a list of the most important reasons:

  • Trouble of EGR valve, in reality, if you undergo 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 Subaru Crosstrek because it is one of the problem of which it is intended to warn you. Have the status of your valve inspected
  • Issue related to 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 performance of the turbo.
  • Issue relevant to the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disturb its proper operation.
  • Finally, the last issue that could lead to a glow indicator light on your Subaru Crosstrek 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 Subaru Crosstrek

To conclude, we’ll give you the motives for a glow plug light that comes on on your Subaru Crosstrek without you feeling any difference in power or car behaviour. In general, 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 get rid of the issue.
  • You have a false contact somewhere in your electrical circuit, test the other solutions first because it is not easy to find it alone, we suggest you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error
  • If you wish more tutorials on the Subaru Crosstrek, go to our Subaru Crosstrek category.