It is never pleasant to hear an injector noise on your Renault Megane. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this warning sign may be connected to different types of problems with your automobile injectors. It may not be anything serious, but when a persistent noise happens, you have to be sure. Specifically since replacing your Renault Megane’s injectors can be costly. That’s why our team chose to produce this content in order to support you see more clearly, learn about the different conceivable failures and establish your trouble. To do this, we will first look at the normal running and usefulness of the injectors in your Renault Megane, then at the conceivable reasons from which an injector noise may come.
Attributes of the injectors
Injectors are a very useful part of the operation of your engine. They were launched to the modern vehicles about 20 years ago. Before their introduction, 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 ability, 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 received from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their aim is therefore to inject under high pressure a precise quantity of an air/fuel mixture at a perfect timing to get the best possible combustion in the cylinders.
The different causes of a clicking or knocking noise based on the injectors of your Renault Megane
Listening injector noises on your Renault Megane may result from different sources, we will now focus on the potential triggers of these. Generally, 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 put into practice to stop them. If you hear another clicking noise but it is not from your injectors, we advise you to read this content about clicking noise on Renault Megane to discover the cause.
The reasons for injector clicking or knocking noise Renault Megane
A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Renault Megane have three main missions, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its goal is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the objective of improving combustion. If one of these three features is modified, the main functionality of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders resulting from 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. The main cause of these situations generally comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably lead to a malfunction of the injector. If after verifying, this noise comes from another component of the engine of your Renault Megane, check this content for more informations.
The end result of injector noise on Renault Megane
Now that we have reviewed the several reasons for injector noise on your Renault Megane, we will end by stating the possible end result 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 repercussions which can fairly quickly become major….
First, you risk destroying your exhaust unit 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 basic effects noticed by drivers is a distinctive loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will fairly quickly damage your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks associated with 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>
