It is never pleasant to acknowledge an injector noise on your Audi Q5. It is a noise that appears frequently, usually when you accelerate or your engine is idling. However, this indicator may be relating to different types of concerns with your automobile injectors. It may not be anything serious, but when a recurrent noise appears, you have to be sure. Specifically since replacing your Audi Q5’s injectors can be expensive. That’s why our team chose to produce this content page in order to support you see more clearly, learn about the different possible failures and determine your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Audi Q5, then at the possible triggers from which an injector noise may come.
Attributes of the injectors
Injectors are a very important part of the operation of your engine unit. They were released to the modern vehicles 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 precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data collected from the various sensors equipping the automobile (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 caused by the injectors of your Audi Q5
Listening injector noises on your Audi Q5 may originate from different locations, we will now center on the potential triggers of these. Generally, the regular 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 prevent them. If you acknowledge another clicking noise but it is not from your injectors, we advise you to browse this content page about clicking noise on Audi Q5 to find the reason.
The explanations for injector clicking or knocking noise Audi Q5
A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Audi Q5 have three main tasks, to control the vaporisation of the fuel, i.e., to transform 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 target of improving combustion. If one of these three tasks 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Audi Q5. The main reason of these trouble usually originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably lead to a malfunction of the injector. If after verifying, this noise originates from another element of the engine of your Audi Q5, read this content page for more informations.
The consequences of injector noise on Audi Q5
Now that we have reviewed the different reasons for injector noise on your Audi Q5, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or broken, or your entire fuel rail is involved, you cannot escape these consequences which can almost instantly become serious….
First, you risk destroying your exhaust system 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 repercussions experienced by drivers is a severe 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 degrading one of your pistons or your engine. Poor combustion will almost instantly affect your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks associated with 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>
