It is hardly ever pleasurable to listen to an injector noise on your Volkswagen Polo 6. It is a noise that comes up frequently, usually when you accelerate or your engine is idling. However, this indicator may be linked to multiple kind of problems with your vehicle injectors. It may not be anything serious, but when a continuing noise happens, you have to be sure. Most importantly since fixing your Volkswagen Polo 6’s injectors can be costly. That’s why our team decided to prepare this content in order to support you see more clearly, learn about the different conceivable failures and distinguish your trouble. To do this, we will first look at the normal functioning and usefulness of the injectors in your Volkswagen Polo 6, then at the conceivable reasons from which an injector noise may come.
Benefits of the injectors
Injectors are a very significant component of the operation of your engine motor. They were brought in to the modern cars 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 precisely (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 origins of a clicking or knocking noise based on the injectors of your Volkswagen Polo 6
Experiencing injector noises on your Volkswagen Polo 6 may come from different origins, we will now center on the potential causes of these. Generally, the usual noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be put into practice to eliminate them. If you listen to another clicking noise but it is not from your injectors, we suggest you to browse this content about clicking noise on Volkswagen Polo 6 to find the cause.
The explanations for injector clicking or knocking noise Volkswagen Polo 6
A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Volkswagen Polo 6 have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the objective of improving combustion. If one of these three features 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 provoke thoses knocking or clicking noises on your Volkswagen Polo 6. The main cause of these problems usually originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably cause a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Volkswagen Polo 6, read this content for more informations.
The side effects of injector noise on Volkswagen Polo 6
Now that we have reviewed the different reasons for injector noise on your Volkswagen Polo 6, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is blocked, or broken, or your entire fuel rail is involved, you cannot escape these consequences 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 repercussions noticed by drivers is a significant loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will inevitably 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 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 swapping your diesel fuel filter regularly>
