It is hardly ever enjoyable to notice an injector noise on your Volkswagen Golf. It is a noise that arises regularly, usually when you accelerate or your engine is idling. However, this symptom may be relating to multiple sort of concerns with your vehicle injectors. It may not be anything major, but when a frequent noise happens, you have to be sure. Most importantly since replacing your Volkswagen Golf’s injectors can be expensive. That’s why our team chose to write this article content in order to support you see more clearly, learn about the different possible failures and establish your trouble. To do this, we will first look at the normal functioning and usefulness of the injectors in your Volkswagen Golf, then at the possible triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very fundamental part of the operation of your engine motor. They were introduced to the modern vehicles 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 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 accumulated 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 obtain the best possible combustion in the cylinders.
The different triggers of a clicking or knocking noise based on the injectors of your Volkswagen Golf
Experiencing injector noises on your Volkswagen Golf may result from different locations, we will now concentrate on the potential causes of these. In most cases, 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 used to prevent them. If you notice another clicking noise but it is not from your injectors, we suggest you to read this article content about clicking noise on Volkswagen Golf to locate the trigger.
The explanations for injector clicking or knocking noise Volkswagen Golf
A clicking or knocking noise from your injectors can be explained for different explanations. Indeed, the injectors of your Volkswagen Golf have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three attributes is modified, 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 provoke thoses knocking or clicking noises on your Volkswagen Golf. The main trigger of these trouble 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 end in a malfunction of the injector. If after verifying, this noise comes from another component of the engine of your Volkswagen Golf, check this article content for more infos.
The effects of injector noise on Volkswagen Golf
Now that we have analyzed the diverse reasons for injector noise on your Volkswagen Golf, 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 repercussions which can quickly become considerable….
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 regular repercussions 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 deteriorating one of your pistons or your engine. Poor combustion will quickly damage your cylinders or pistons and your engine may tighten.
Here are three little tips 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>
