A new warning light on your dashboard? You don’t understand why it doesn’t switch off… It’s typical, a car is complex and there are many factors why a light might occur. If it turns out your glow plug light comes on while driving your Peugeot 306, it may possibly signify several issues. On this page, we will do anything we can to help you see things more clearly. First, we will discover how the preheating light on your Peugeot 306 operates, and then the different motives it lights up when you are driving

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What is the purpose of my Peugeot 306 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 Peugeot 306 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 expected to stay or come on while driving with your car. But, if it comes on while driving, it may show several issues, we will try to summarize the main ones.

What to do if the glow plug light comes on while driving on my Peugeot 306?

A glow light that comes on while driving on your Peugeot 306 or at any other time other than when the engine is started is intended to inform you to a problem other than your spark plugs, we will check out this right now. In any case, a switch to the diagnostic tool will allow you to accurately translate the cause for the light up of your glow light.

My Peugeot 306 glow light comes on and I’m experiencing a loss of power

The first probability is that you identify that your glow plug light comes on while driving your Peugeot 306 and that you also experience a loss of power. In such a case, several concerns can demonstrate its presence. Here is a list of the main factors:

  • Problem of EGR valve, in fact, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this instance, it is rational that your preheat light comes on while driving on Peugeot 306 because it is one of the problem of which it is supposed to notify you. Have the status of your valve looked at
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can cause turbo boost and a disturbance in the operation of the turbo.
  • Trouble in connection with the injection, either an injector that has seized up or the injection pump that is malfunctioned by filings or other possible foreign bodies that affect its proper function.
  • Finally, the last issue that could lead to a glow indicator light on your Peugeot 306 coupled with a loss of power, is that your fuel filter is too dirty, you should come to feel 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 306

To conclude, we’ll give you the motives for a glow plug light that comes on on your Peugeot 306 without you feeling any difference in power or car behaviour. In general, this is an electronic problem:

  • 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 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 encourage you to go to your technician.
  • Faulty injection pressure sensor, ECU error
  • To get more tips on the Peugeot 306, take a look at the Peugeot 306 category.