A new warning light on your dashboard? You don’t find out why it doesn’t switch off… It’s normal, a vehicle is elaborate and there are various reasons why a light may occur. In cases where your glow plug light comes on while driving your Acura RDX, it may reveal different problems. In this post, we will do everything we can to support you see things more clearly. First, we will find out how the preheating light on your Acura RDX works, and then the different causes it lights up when you are driving

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What is the purpose of my Acura RDX glow plug light?

The primary goal of the engine glow plug light, which is in most cases represented 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 Acura RDX 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 motor vehicle. However, if it comes on while driving, it may indicate multiple troubles, we will try to detail the most important ones.

What to do if the glow plug light comes on while driving on my Acura RDX?

A glow light that comes on while driving on your Acura RDX or at any other time other than when the engine is started is designed to inform you to a fault other than your spark plugs, we will take a look at this right now. Whatever the case, a switch to the diagnostic tool will allow you to carefully understand the motive for the light up of your glow light.

My Acura RDX glow light comes on and I’m going through a loss of power

The first probability is that you detect that your glow plug light comes on while driving your Acura RDX and that you also encounter a loss of power. In this case, different trouble can describe its lightning. Here is a list of the most important reasons:

  • Problem of EGR valve, in fact, if you go through a loss of power, it is possible that your EGR valve is clogged, in this case, it is logical that your preheat light comes on while driving on Acura RDX because it is one of the failures of which it is intended to notify you. Have the status of your valve tested
  • Issue linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can cause turbo boost and a perturbation 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 damaged by filings or other possible foreign bodies that disrupt its proper function.
  • Finally, the last trouble that could lead to a glow indicator light on your Acura RDX 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 Acura RDX

To conclude, we’ll give you the causes for a glow plug light that comes on on your Acura RDX without you feeling any difference in power or motor vehicle behaviour. In general, this is an electronic fault:

  • Glow plug relays or fuses to be replaced, 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 fix 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 advise you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • If you need more guides on the Acura RDX, go to our Acura RDX category.