It is never enjoyable to listen to an injector noise on your Renault Twingo. It is a noise that appears repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be related to different sort of trouble with your car injectors. It may not be anything major, but when a continuing noise happens, you have to be sure. Especially since replacing your Renault Twingo’s injectors can be expensive. That’s why our team decided to write this content page in order to help you see more clearly, learn about the different possible failures and identify your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Renault Twingo, then at the possible reasons from which an injector noise may come.injector-noise-renault-twingo

Purposes of the injectors

Injectors are a very fundamental component of the operation of your engine motor. They were released 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 opportunity, 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 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 origins of a clicking or knocking noise based on the injectors of your Renault Twingo

Hearing injector noises on your Renault Twingo may come from different origins, we will now center on the potential triggers of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be implemented to prevent them. If you listen to another clicking noise but it is not from your injectors, we suggest you to browse this content page about clicking noise on Renault Twingo to find the trigger.

The explanations for injector clicking or knocking noise Renault Twingo

A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Renault Twingo have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its objective is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three functions is altered, the main functionality of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Renault Twingo. The main trigger 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 obstruction will inevitably lead to a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Renault Twingo, browse this content page for more infos.

The consequences of injector noise on Renault Twingo

Now that we have examined the several causes for injector noise on your Renault Twingo, we will end by stating the possible end result 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 consequences which can promptly become severe….
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 known repercussions experienced by drivers is a serious loss of power. Indeed, 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 promptly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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>