A new light on your dashboard? You don’t find out why it doesn’t turn off… It’s typical, an automobile is complex and there are multiple factors why a light may come on. If it turns out your glow plug light comes on while driving your Ram P/U, it may possibly signal several things. In this article, we will do anything we can to support you see things more clearly. First, we will see how the preheating light on your Ram P/U operates, and then the different motives it lights up when you are driving

glow-plug-light-ram-p/u

What is the goal of my Ram P/U 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. In fact, it must light up when you switch on your Ram P/U 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 comes on while driving, it may indicate different troubles, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Ram P/U?

A glow light that comes on while driving on your Ram P/U 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 look at this right now. No matter the reason, plug in your car to the diagnostic tool will allow you to precisely understand the cause for the light up of your glow light.

My Ram P/U glow light comes on and I’m going through a loss of power

The first possibility is that you notice that your glow plug light comes on while driving your Ram P/U and that you also encounter a loss of power. In this instance, several concerns can describe its presence. Here is a list of the most important factors:

  • Issue of EGR valve, in fact, if you suffer a loss of power, it is possible that your EGR valve is blocked, in this instance, it is rational that your preheat light comes on while driving on Ram P/U because it is one of the failures of which it is meant to warn you. Have the status of your valve looked at
  • Issue associated with the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can lead to turbo boost and a perturbation in the operation of the turbo.
  • Issue related to the injection, either an injector that has seized up or the injection pump that is destroyed by filings or other possible foreign bodies that disturb its proper performing.
  • Finally, the last trouble that could lead to a glow indicator light on your Ram P/U 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 Ram P/U

Finally, we’ll give you the motives for a glow plug light that comes on on your Ram P/U without you feeling any difference in power or car behaviour. Generally, this is an electronic problem:

  • 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 solve the trouble.
  • You have a false contact somewhere in your electrical circuit, test the other solutions first because it is not easy to find it alone, we advise you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

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