It is hardly ever enjoyable to hear an injector noise on your Audi E-Tron. It is a noise that happens repeatedly, usually when you accelerate or your engine is idling. However, this indication may be connected to several sort of trouble with your automobile injectors. It may not be anything serious, but when a persistent noise appears, you have to be sure. Specifically since repairing your Audi E-Tron’s injectors can be costly. That’s why our team chose to write this content in order to help you see more clearly, learn about the different possible failures and distinguish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Audi E-Tron, then at the possible causes from which an injector noise may come.
Benefits of the injectors
Injectors are a very vital component of the operation of your engine. They were brought in to the modern automobiles about 20 years ago. Before their arrival, 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data compiled from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their aim 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 origins of a clicking or knocking noise caused by the injectors of your Audi E-Tron
Hearing injector noises on your Audi E-Tron may come from different locations, we will now look into the potential causes of these. In most cases, the common 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 stop them. If you hear another clicking noise but it is not from your injectors, we recommend you to go through this content about clicking noise on Audi E-Tron to locate the trigger.
The reasons for injector clicking or knocking noise Audi E-Tron
A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your Audi E-Tron 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 deal with 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 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 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 Audi E-Tron. The main trigger of these situations generally 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 part of the engine of your Audi E-Tron, read this content for more informations.
The effects of injector noise on Audi E-Tron
Now that we have examined the diverse causes for injector noise on your Audi E-Tron, we will end by stating the possible side effects 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 almost instantly 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 basic repercussions felt by drivers is a distinctive 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 degrading one of your pistons or your engine. Poor combustion will almost instantly damage your cylinders or pistons and your engine may tighten.
Here are three little tips 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>
