A new warning light on your dashboard? You don’t find out why it doesn’t turn off… It’s typical, a vehicle is elaborate and there are various motives why a light may come on. If it turns out your glow plug light comes on while driving your Toyota Hilux, it may possibly point out different things. 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 Toyota Hilux works, and then the different reasons it lights up when you are driving

glow-plug-light-toyota-hilux

What is the role of my Toyota Hilux glow plug light?

The primary goal of the engine glow plug light, which is generally symbolized by a yellow coil, is to make sure that your glow plugs are working correctly. In fact, it must light up when you switch on your Toyota Hilux 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. But, if it turns on while driving, it may reveal different failures, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Toyota Hilux?

A glow light that comes on while driving on your Toyota Hilux or at any other time other than when the engine is started is designed to notify you to a problem other than your spark plugs, we will take a look at this right now. Whatever the case, plug in your car to the diagnostic tool will allow you to accurately interpret the explanation for the light up of your glow light.

My Toyota Hilux glow light comes on and I’m encountering a loss of power

The first possibility is that you notice that your glow plug light comes on while driving your Toyota Hilux and that you also encounter a loss of power. In this instance, different complications can demonstrate its lightning. Here is a list of the most important motives:

  • Issue of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is clogged, in such a case, it is rational that your preheat light comes on while driving on Toyota Hilux because it is one of the problem of which it is meant to notify you. Have the status of your valve inspected
  • Issue linked to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can bring about turbo boost and a disturbance in the operation of the turbo.
  • Issue in connection with the injection, either an injector that has seized up or the injection pump that is destroyed by filings or other possible foreign bodies that affect its proper performance.
  • Finally, the last problem that could lead to a glow indicator light on your Toyota Hilux 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 Toyota Hilux

Finally, we’ll give you the reasons for a glow plug light that comes on on your Toyota Hilux without you feeling any difference in power or car behaviour. Generally, 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 resolve the problem.
  • You have a false contact somewhere in your electrical circuit, test the other options first because it is not easy to find it alone, we recommend you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you have any additional questions about the Toyota Hilux, do not hesitate to consult our Toyota Hilux category.