It is rarely ever pleasant to listen an injector noise on your Volkswagen Golf 5. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this indication may be connected to several kind of problems with your car injectors. It may not be anything major, but when a repeated noise shows up, you have to be sure. Most importantly since repairing your Volkswagen Golf 5’s injectors can be expensive. That’s why our team chose to prepare this content in order to support you see more clearly, learn about the different conceivable failures and distinguish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Volkswagen Golf 5, then at the conceivable triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very important element of the operation of your engine. They were brought in to the modern cars 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 possibility, 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 car (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 coming from the injectors of your Volkswagen Golf 5
Finding out injector noises on your Volkswagen Golf 5 may come from different locations, we will now look into 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 put into practice to stop them. If you listen another clicking noise but it is not from your injectors, we suggest you to browse this content about clicking noise on Volkswagen Golf 5 to find the cause.
The causes for injector clicking or knocking noise Volkswagen Golf 5
A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Volkswagen Golf 5 have three main missions, to control 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 finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three attributes is altered, the main purpose of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders because 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 Golf 5. The main cause of these concerns in most cases originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably produce a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Volkswagen Golf 5, read this content for more informations.
The repercussions of injector noise on Volkswagen Golf 5
Now that we have analyzed the diverse reasons for injector noise on your Volkswagen Golf 5, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these side effects which can fairly quickly become critical….
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 common effects felt by drivers is a severe loss of power. In fact, 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 fairly quickly affect 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 swapping your diesel fuel filter regularly>
