A new 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 might occur. If it turns out your glow plug light comes on while driving your Peugeot 307 Cc, it might signify several problems. In this article, we will do anything we can to help you see things more clearly. First, we will discover how the preheating light on your Peugeot 307 Cc works, and then the different causes it lights up when you are driving

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What is the role of my Peugeot 307 Cc glow plug light?

The main goal of the engine glow plug light, which is generally symbolized by a yellow coil, is to guarantee that your glow plugs are working correctly. Indeed, it must light up when you switch on your Peugeot 307 Cc 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 meant to stay or come on while driving with your car. Nevertheless, if it comes on while driving, it may reveal multiple failures, we will try to detail the main ones.

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

A glow light that comes on while driving on your Peugeot 307 Cc 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. In any case, a switch to the diagnostic tool will allow you to carefully interpret the cause for the light up of your glow light.

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

The first possibility is that you perceive that your glow plug light comes on while driving your Peugeot 307 Cc and that you also experience a loss of power. In this case, several concerns can demonstrate its presence. Here is a list of the main reasons:

  • Issue of EGR valve, in reality, if you are affected a loss of power, it is possible that your EGR valve is blocked, in this case, it is obvious that your preheat light comes on while driving on Peugeot 307 Cc because it is one of the problem of which it is expected to warn you. Have the status of your valve examined
  • Issue linked 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 operation of the turbo.
  • Issue linked to the injection, either an injector that has seized up or the injection pump that is malfunctioned by filings or other possible foreign bodies that disturb its proper performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Peugeot 307 Cc coupled with a loss of power, is that your fuel filter is too dirty, you should encounter 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 Cc

To conclude, we’ll give you the causes for a glow plug light that comes on on your Peugeot 307 Cc 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 trouble.
  • You have a false contact somewhere in your electrical circuit, check the other solutions 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

    • Whenever you have any further questions about the Peugeot 307 Cc, do not hesitate to consult our Peugeot 307 Cc category.