It is never pleasurable to experience an injector noise on your Volkswagen Multivan. It is a noise that happens repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be linked to several sort of complications with your automobile injectors. It may not be anything major, but when a repeated noise comes out, you have to be sure. Especially since fixing your Volkswagen Multivan’s injectors can be costly. That’s why our team decided to write this content page in order to help you see more clearly, learn about the different plausible failures and determine your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Volkswagen Multivan, then at the plausible reasons from which an injector noise may come.
Purposes of the injectors
Injectors are a very fundamental part of the operation of your engine. They were introduced to the modern automobiles 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 compiled from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their goal 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 coming from the injectors of your Volkswagen Multivan
Hearing injector noises on your Volkswagen Multivan may originate from different origins, we will now look into the potential triggers of these. In most cases, the common noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be applied to get rid of them. If you experience another clicking noise but it is not from your injectors, we advise you to examine this content page about clicking noise on Volkswagen Multivan to find the cause.
The reasons for injector clicking or knocking noise Volkswagen Multivan
A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Volkswagen Multivan have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its objective is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three characteristics is altered, 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 Multivan. The main cause 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 lead to a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Volkswagen Multivan, have a look at this content page for more informations.
The effects of injector noise on Volkswagen Multivan
Now that we have analyzed the diverse causes for injector noise on your Volkswagen Multivan, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can promptly become serious….
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 experienced by drivers is a distinctive loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will promptly affect 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 swapping your diesel fuel filter regularly>
