It is hardly ever enjoyable to listen to an injector noise on your Volkswagen Transporter 4. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this warning sign may be relating to several types of problems with your vehicle injectors. It may not be anything serious, but when a repeated noise arises, you have to be sure. Most importantly since repairing your Volkswagen Transporter 4’s injectors can be costly. That’s why our team decided to prepare this content page in order to help you see more clearly, learn about the different plausible failures and identify your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Volkswagen Transporter 4, then at the plausible reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very vital element of the operation of your engine unit. They were introduced to the modern automobiles about 20 years ago. Before their introduction, 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data compiled 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 get the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise based on the injectors of your Volkswagen Transporter 4
Discovering injector noises on your Volkswagen Transporter 4 may come from different locations, we will now focus on the potential causes of these. In general, 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 implemented to eliminate them. If you listen to another clicking noise but it is not from your injectors, we advise you to browse this content page about clicking noise on Volkswagen Transporter 4 to find the reason.
The causes for injector clicking or knocking noise Volkswagen Transporter 4
A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Volkswagen Transporter 4 have three main missions, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is modified, 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 Volkswagen Transporter 4. The main reason of these problems in most cases comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably produce a malfunction of the injector. If after checking, this noise comes from another element of the engine of your Volkswagen Transporter 4, have a look at this content page for more infos.
The repercussions of injector noise on Volkswagen Transporter 4
Now that we have examined the diverse reasons for injector noise on your Volkswagen Transporter 4, we will end by stating the possible consequences 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 promptly become major….
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 basic effects experienced by drivers is a significant 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 degrading 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 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 changing your diesel fuel filter regularly>
