It is rarely ever pleasurable to notice an injector noise on your Volkswagen Golf 7. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this indicator may be related to different kind of complications with your car injectors. It may not be anything major, but when a persistent noise arises, you have to be sure. Most importantly since fixing your Volkswagen Golf 7’s injectors can be costly. That’s why our team chose to prepare this content in order to support you see more clearly, learn about the different plausible failures and distinguish your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Volkswagen Golf 7, then at the plausible causes from which an injector noise may come.
Attributes of the injectors
Injectors are a very useful part of the operation of your engine. They were introduced to the modern vehicles about 20 years ago. Before their appearance, 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 collected from the various sensors equipping the car (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 obtain the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise based on the injectors of your Volkswagen Golf 7
Discovering injector noises on your Volkswagen Golf 7 may result from different sources, we will now focus on the potential triggers 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 adopted to get rid of them. If you notice another clicking noise but it is not from your injectors, we suggest you to go through this content about clicking noise on Volkswagen Golf 7 to locate the cause.
The causes for injector clicking or knocking noise Volkswagen Golf 7
A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Volkswagen Golf 7 have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its task 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 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 as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Volkswagen Golf 7. The main cause of these concerns usually comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably cause a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Volkswagen Golf 7, check this content for more informations.
The effects of injector noise on Volkswagen Golf 7
Now that we have analyzed the different reasons for injector noise on your Volkswagen Golf 7, 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 fairly quickly 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 known effects felt 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 fairly quickly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks linked 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>
