It is hardly ever pleasurable to listen an injector noise on your Renault Clio 2 Campus. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this indicator may be linked to multiple sort of complications with your vehicle injectors. It may not be anything major, but when a recurrent noise appears, you have to be sure. Especially since fixing your Renault Clio 2 Campus’s injectors can be costly. That’s why our team chose to create this article in order to help you see more clearly, learn about the different plausible failures and determine your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Renault Clio 2 Campus, then at the plausible triggers from which an injector noise may come.injector-noise-renault-clio-2-campus

Purposes of the injectors

Injectors are a very fundamental part of the operation of your engine unit. They were launched to the modern automobiles 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 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 collected from the various sensors equipping the vehicle (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 obtain the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise coming from the injectors of your Renault Clio 2 Campus

Finding out injector noises on your Renault Clio 2 Campus may come from different locations, we will now concentrate on the potential causes of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be applied to eliminate them. If you listen another clicking noise but it is not from your injectors, we advise you to browse this article about clicking noise on Renault Clio 2 Campus to find the cause.

The explanations for injector clicking or knocking noise Renault Clio 2 Campus

A clicking or knocking noise from your injectors can be explained for different explanations. Indeed, the injectors of your Renault Clio 2 Campus have three main missions, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its mission is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three attributes is modified, 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 Clio 2 Campus. The main cause of these problems generally comes 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 checking, this noise comes from another element of the engine of your Renault Clio 2 Campus, check this article for more informations.

The effects of injector noise on Renault Clio 2 Campus

Now that we have reviewed the several reasons for injector noise on your Renault Clio 2 Campus, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is clogged, or broken, or your entire fuel rail is involved, you cannot escape these effects which can almost instantly become serious….
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 common effects experienced by drivers is a severe 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 almost instantly affect your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks connected 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>