It is hardly ever pleasant to perceive an injector noise on your Renault Megane 3. It is a noise that happens continually, usually when you accelerate or your engine is idling. However, this sign may be relating to multiple sort of problems with your automobile injectors. It may not be anything severe, but when a recurrent noise appears, you have to be sure. Most importantly since fixing your Renault Megane 3’s injectors can be costly. That’s why our team chose to prepare this article in order to support you see more clearly, learn about the different possible failures and distinguish your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Renault Megane 3, then at the possible triggers from which an injector noise may come.
Attributes of the injectors
Injectors are a very fundamental component of the operation of your engine. They were released to the modern automobiles about 20 years ago. Before their arrival, more conventional carburettor-type intake systems were used, which handled the intake of air and fuel into the engine cylinders. With the injectors, manufacturers now have the possibility, thanks to the injectors pump, to control electronically each stage of the intake process very precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data collected from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their goal is therefore to inject under high pressure a precise quantity of an air/fuel mixture at a perfect timing to obtain the best possible combustion in the cylinders.
The different causes of a clicking or knocking noise caused by the injectors of your Renault Megane 3
Hearing injector noises on your Renault Megane 3 may come from different origins, we will now center on the potential causes of these. In most cases, the regular noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be adopted to stop them. If you perceive another clicking noise but it is not from your injectors, we advise you to examine this article about clicking noise on Renault Megane 3 to find the reason.
The causes for injector clicking or knocking noise Renault Megane 3
A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Renault Megane 3 have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three tasks is altered, the main purpose of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Renault Megane 3. The main reason of these concerns commonly originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Renault Megane 3, have a look at this article for more infos.
The consequences of injector noise on Renault Megane 3
Now that we have examined the different causes for injector noise on your Renault Megane 3, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is blocked, or broken, or your entire fuel rail is involved, you cannot escape these effects which can quickly become considerable….
First, you risk destroying your exhaust system in the long run, because the unburned fuel residues that will end up in your exhaust system can corrode the metal in it.
One of the most regular repercussions felt by drivers is a severe loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will quickly harm your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks connected to your injectors and protect you from engine failure:
- Do not drive at the bottom of the tank, as you may absorb impurities
- Use quality fuel
- Think of changing your diesel fuel filter regularly>
