A new warning light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, an auto is elaborate and there are multiple reasons why a light could come on. In cases where your glow plug light comes on while driving your Peugeot 307, it may signify some issues. In the following paragraphs, we will do everything we can to support you see things more clearly. First, we will see how the preheating light on your Peugeot 307 works, and then the different motives it lights up when you are driving

glow-plug-light-peugeot-307

What is the goal of my Peugeot 307 glow plug light?

The primary purpose of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to ensure that your glow plugs are working correctly. In fact, it must light up when you switch on your Peugeot 307 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 expected to stay or come on while driving with your vehicle. Nevertheless, if it turns on while driving, it may suggest multiple failures, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Peugeot 307?

A glow light that comes on while driving on your Peugeot 307 or at any other time other than when the engine is started is intended to inform you to a fault other than your spark plugs, we will take a look at this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to properly translate the motive for the light up of your glow light.

My Peugeot 307 glow light comes on and I’m having a loss of power

The first possibility is that you notice that your glow plug light comes on while driving your Peugeot 307 and that you also experience a loss of power. In such a case, some trouble can demonstrate its lightning. Here is a list of the most important reasons:

  • Trouble 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 expected that your preheat light comes on while driving on Peugeot 307 because it is one of the problem of which it is designed to notify you. Have the status of your valve examined
  • Problem 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.
  • Problem linked 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 disrupt its proper operation.
  • Finally, the last trouble that could lead to a glow indicator light on your Peugeot 307 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 Peugeot 307

Finally, we’ll give you the motives for a glow plug light that comes on on your Peugeot 307 without you feeling any difference in power or vehicle behaviour. In general, this is an electronic fault:

  • Glow plug relays or fuses to be changed, 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 resolve the trouble.
  • You have a false contact somewhere in your electrical circuit, test out the other solutions first because it is not easy to find it alone, we advise you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you need more tutorials on the Peugeot 307, go to our Peugeot 307 category.