It is never pleasurable to notice an injector noise on your Volkswagen Routan. It is a noise that comes up frequently, usually when you accelerate or your engine is idling. However, this indication may be related to different types of problems with your vehicle injectors. It may not be anything major, but when a continuing noise happens, you have to be sure. Specifically since repairing your Volkswagen Routan’s injectors can be costly. That’s why our team chose to write this article 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 function and usefulness of the injectors in your Volkswagen Routan, then at the plausible triggers from which an injector noise may come.injector-noise-volkswagen-routan

Attributes of the injectors

Injectors are a very significant part of the operation of your engine unit. They were launched 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 precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data collected from the various sensors equipping the vehicle (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 causes of a clicking or knocking noise based on the injectors of your Volkswagen Routan

Finding out injector noises on your Volkswagen Routan may result from different locations, we will now concentrate on the potential causes of these. Generally, the regular noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be adopted to eliminate them. If you notice another clicking noise but it is not from your injectors, we encourage you to examine this article about clicking noise on Volkswagen Routan to discover the reason.

The reasons for injector clicking or knocking noise Volkswagen Routan

A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your Volkswagen Routan 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 task is to manage 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 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Volkswagen Routan. The main reason of these problems 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 result in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Volkswagen Routan, read this article for more informations.

The repercussions of injector noise on Volkswagen Routan

Now that we have analyzed the diverse reasons for injector noise on your Volkswagen Routan, we will end by stating the possible effects 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 almost instantly become severe….
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 noticed by drivers is a noticeable loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will almost instantly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks connected 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>