It is rarely ever relaxing to notice an injector noise on your Volkswagen Touran 2. It is a noise that arises frequently, usually when you accelerate or your engine is idling. However, this symptom may be linked to different sort of trouble with your automobile injectors. It may not be anything major, but when a repeated noise appears, you have to be sure. Especially since fixing your Volkswagen Touran 2’s injectors can be expensive. That’s why our team chose to compose this content page in order to help you see more clearly, learn about the different plausible failures and establish your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Volkswagen Touran 2, then at the plausible reasons from which an injector noise may come.injector-noise-volkswagen-touran-2

Benefits of the injectors

Injectors are a very important component of the operation of your engine. They were released to the modern vehicles 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 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 collected from the various sensors equipping the automobile (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 reasons of a clicking or knocking noise caused by the injectors of your Volkswagen Touran 2

Discovering injector noises on your Volkswagen Touran 2 may come from different locations, we will now look into the potential causes of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be adopted to stop them. If you notice another clicking noise but it is not from your injectors, we advise you to go through this content page about clicking noise on Volkswagen Touran 2 to find the reason.

The causes for injector clicking or knocking noise Volkswagen Touran 2

A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Volkswagen Touran 2 have three main missions, to manage the vaporisation of the fuel, i.e., to transform 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 objective of improving combustion. If one of these three characteristics is modified, the main purpose 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 provoke thoses knocking or clicking noises on your Volkswagen Touran 2. The main reason of these trouble generally comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after checking, this noise comes from another part of the engine of your Volkswagen Touran 2, have a look at this content page for more informations.

The consequences of injector noise on Volkswagen Touran 2

Now that we have analyzed the different reasons for injector noise on your Volkswagen Touran 2, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is obstructed, or broken, or your entire fuel rail is involved, you cannot escape these effects which can fairly quickly become considerable….
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 consequences noticed by drivers is a serious 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 degrading one of your pistons or your engine. Poor combustion will fairly quickly harm your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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 changing your diesel fuel filter regularly>