It is rarely ever relaxing to listen an injector noise on your Renault Modus. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this symptom may be linked to several types of problems with your car injectors. It may not be anything major, but when a repeated noise arises, you have to be sure. Most importantly since repairing your Renault Modus’s injectors can be expensive. That’s why our team decided to produce 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 running and usefulness of the injectors in your Renault Modus, then at the possible triggers from which an injector noise may come.
Attributes of the injectors
Injectors are a very useful element of the operation of your engine unit. They were introduced to the modern vehicles 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 car (engine temperature, acceleration level, engine speed, etc.). Their objective 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 Modus
Discovering injector noises on your Renault Modus may result from different origins, we will now center on the potential causes of these. Generally, the typical noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be used to eliminate them. If you listen another clicking noise but it is not from your injectors, we advise you to go through this article about clicking noise on Renault Modus to find the cause.
The explanations for injector clicking or knocking noise Renault Modus
A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Renault Modus have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its goal is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the goal of improving combustion. If one of these three features 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 provoke thoses knocking or clicking noises on your Renault Modus. The main cause of these trouble usually originates from a particle that gets into the injectors. The accuracy 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 originates from another component of the engine of your Renault Modus, browse this article for more informations.
The consequences of injector noise on Renault Modus
Now that we have reviewed the different causes for injector noise on your Renault Modus, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can almost instantly 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 known consequences experienced by drivers is a distinctive 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 almost instantly harm your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks linked 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>
