It is never pleasant to hear an injector noise on your Renault Clio 3. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this sign may be connected to multiple kind of trouble with your automobile injectors. It may not be anything major, but when a frequent noise happens, you have to be sure. Specifically since repairing your Renault Clio 3’s injectors can be expensive. That’s why our team chose to create this article content in order to support you see more clearly, learn about the different plausible failures and distinguish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Renault Clio 3, then at the plausible triggers from which an injector noise may come.injector-noise-renault-clio-3

Benefits of the injectors

Injectors are a very important component of the operation of your engine. They were introduced to the modern cars about 20 years ago. Before their appearance, 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 opportunity, 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 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 obtain the best possible combustion in the cylinders.

The different causes of a clicking or knocking noise caused by the injectors of your Renault Clio 3

Hearing injector noises on your Renault Clio 3 may come from different origins, we will now center on the potential causes of these. In general, the common noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be put into practice to eliminate them. If you hear another clicking noise but it is not from your injectors, we suggest you to go through this article content about clicking noise on Renault Clio 3 to discover the cause.

The causes for injector clicking or knocking noise Renault Clio 3

A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Renault Clio 3 have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three functions is altered, the main role of the injectors will be disturbed 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 provoke thoses knocking or clicking noises on your Renault Clio 3. The main cause of these concerns usually comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably result in a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Renault Clio 3, read this article content for more informations.

The end result of injector noise on Renault Clio 3

Now that we have analyzed the different reasons for injector noise on your Renault Clio 3, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is blocked, or damaged, or your entire fuel rail is involved, you cannot escape these effects which can quickly become critical….
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 effects felt by drivers is a severe loss of power. In fact, 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 quickly harm your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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>