It is hardly ever enjoyable to experience an injector noise on your BMW X6. It is a noise that arises frequently, usually when you accelerate or your engine is idling. However, this sign may be linked to multiple types of concerns with your car injectors. It may not be anything serious, but when a persistent noise arises, you have to be sure. Most importantly since fixing your BMW X6’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 determine your issue. To do this, we will first look at the normal function and usefulness of the injectors in your BMW X6, then at the possible triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very important element of the operation of your engine unit. They were released 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 precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data accumulated 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 get the best possible combustion in the cylinders.
The different triggers of a clicking or knocking noise based on the injectors of your BMW X6
Discovering injector noises on your BMW X6 may originate from different origins, we will now look into the potential causes of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be implemented to get rid of them. If you experience another clicking noise but it is not from your injectors, we suggest you to go through this content about clicking noise on BMW X6 to discover the cause.
The causes for injector clicking or knocking noise BMW X6
A clicking or knocking noise from your injectors can be justified by different causes. Indeed, the injectors of your BMW X6 have three main missions, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its objective is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is modified, the main functionality of the injectors will be disrupted 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 trigger thoses knocking or clicking noises on your BMW X6. The main cause of these concerns in most cases comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably lead to a malfunction of the injector. If after verifying, this noise comes from another component of the engine of your BMW X6, have a look at this content for more informations.
The side effects of injector noise on BMW X6
Now that we have analyzed the diverse causes for injector noise on your BMW X6, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can quickly become critical….
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 common effects noticed 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 deteriorating one of your pistons or your engine. Poor combustion will quickly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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>
