It is rarely ever pleasant to listen an injector noise on your Volkswagen Transporter. It is a noise that happens regularly, usually when you accelerate or your engine is idling. However, this sign may be connected to different sort of trouble with your vehicle injectors. It may not be anything severe, but when a persistent noise shows up, you have to be sure. Most importantly since replacing your Volkswagen Transporter’s injectors can be expensive. That’s why our team decided to write this content in order to support you see more clearly, learn about the different plausible failures and determine your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Volkswagen Transporter, then at the plausible causes from which an injector noise may come.
Functions of the injectors
Injectors are a very important part of the operation of your engine unit. They were launched to the modern cars 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data obtained from the various sensors equipping the vehicle (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 causes of a clicking or knocking noise caused by the injectors of your Volkswagen Transporter
Finding out injector noises on your Volkswagen Transporter may originate from different origins, we will now look into the potential causes of these. Generally, the common noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be put into practice to get rid of them. If you listen another clicking noise but it is not from your injectors, we suggest you to browse this content about clicking noise on Volkswagen Transporter to discover the cause.
The explanations for injector clicking or knocking noise Volkswagen Transporter
A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Volkswagen Transporter 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 objective is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the goal of improving combustion. If one of these three functions 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 Volkswagen Transporter. The main cause of these situations generally originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably lead to a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Volkswagen Transporter, have a look at this content for more infos.
The repercussions of injector noise on Volkswagen Transporter
Now that we have examined the diverse causes for injector noise on your Volkswagen Transporter, 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 consequences which can fairly quickly become considerable….
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 consequences felt by drivers is a significant 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 damage 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 swapping your diesel fuel filter regularly>
