It is never relaxing to perceive an injector noise on your Renault Megane 2. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this sign may be related to several types of complications with your automobile injectors. It may not be anything severe, but when a continuing noise appears, you have to be sure. Most importantly since repairing your Renault Megane 2’s injectors can be costly. That’s why our team decided to compose this content in order to help you see more clearly, learn about the different plausible 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 2, then at the plausible causes from which an injector noise may come.
Functions of the injectors
Injectors are a very fundamental element of the operation of your engine unit. They were brought in to the modern automobiles about 20 years ago. Before their introduction, more conventional carburettor-type intake systems were employed, 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data obtained from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their purpose 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 caused by the injectors of your Renault Megane 2
Listening injector noises on your Renault Megane 2 may originate from different locations, we will now center on the potential causes of these. Generally, the common noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be implemented to prevent them. If you perceive another clicking noise but it is not from your injectors, we suggest you to browse this content about clicking noise on Renault Megane 2 to discover the cause.
The causes for injector clicking or knocking noise Renault Megane 2
A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Renault Megane 2 have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three tasks is altered, 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 because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Renault Megane 2. The main cause of these problems commonly comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Renault Megane 2, browse this content for more informations.
The effects of injector noise on Renault Megane 2
Now that we have examined the diverse reasons for injector noise on your Renault Megane 2, 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 serious….
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 common consequences felt by drivers is a significant loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will quickly affect your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks relating 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 swapping your diesel fuel filter regularly>
