It is rarely ever pleasant to listen an injector noise on your Renault Twingo 3. It is a noise that happens continually, usually when you accelerate or your engine is idling. However, this warning sign may be relating to several types of concerns with your car injectors. It may not be anything severe, but when a continuing noise arises, you have to be sure. Specifically since fixing your Renault Twingo 3’s injectors can be costly. That’s why our team chose to prepare this content in order to help you see more clearly, learn about the different plausible failures and distinguish your trouble. To do this, we will first look at the normal running and usefulness of the injectors in your Renault Twingo 3, then at the plausible triggers from which an injector noise may come.injector-noise-renault-twingo-3

Functions of the injectors

Injectors are a very vital element of the operation of your engine motor. They were launched to the modern automobiles about 20 years ago. Before their arrival, 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 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 obtained from the various sensors equipping the car (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 triggers of a clicking or knocking noise based on the injectors of your Renault Twingo 3

Discovering injector noises on your Renault Twingo 3 may originate from different sources, we will now center on the potential causes of these. Generally, the regular 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 suggest you to examine this content about clicking noise on Renault Twingo 3 to discover the reason.

The causes for injector clicking or knocking noise Renault Twingo 3

A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Renault Twingo 3 have three main tasks, to control the vaporisation of the fuel, i.e., to convert 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 functions is altered, the main role 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 trigger thoses knocking or clicking noises on your Renault Twingo 3. The main reason of these problems 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 produce a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Renault Twingo 3, have a look at this content for more infos.

The repercussions of injector noise on Renault Twingo 3

Now that we have reviewed the different reasons for injector noise on your Renault Twingo 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 side 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 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 undoubtedly have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will quickly damage your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks connected 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 changing your diesel fuel filter regularly>