It is hardly ever pleasurable to hear an injector noise on your Bmw Serie 3 E90. It is a noise that happens repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be connected to several sort of concerns with your automobile injectors. It may not be anything major, but when a continuing noise shows up, you have to be sure. Especially since replacing your Bmw Serie 3 E90’s injectors can be expensive. That’s why our team chose to compose this article content in order to support you see more clearly, learn about the different conceivable failures and distinguish your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Bmw Serie 3 E90, then at the conceivable causes from which an injector noise may come.
Benefits of the injectors
Injectors are a very useful element of the operation of your engine. They were launched to the modern automobiles 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 opportunity, 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 received from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their goal 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 coming from the injectors of your Bmw Serie 3 E90
Listening injector noises on your Bmw Serie 3 E90 may result from different origins, we will now concentrate on the potential causes of these. In general, 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 adopted to eliminate them. If you hear another clicking noise but it is not from your injectors, we encourage you to read this article content about clicking noise on Bmw Serie 3 E90 to find the reason.
The reasons for injector clicking or knocking noise Bmw Serie 3 E90
A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Bmw Serie 3 E90 have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the objective 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 due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Bmw Serie 3 E90. The main reason of these problems commonly originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably result in a malfunction of the injector. If after verifying, this noise originates from another part of the engine of your Bmw Serie 3 E90, have a look at this article content for more informations.
The end result of injector noise on Bmw Serie 3 E90
Now that we have analyzed the several causes for injector noise on your Bmw Serie 3 E90, we will end by stating the possible end result 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 side effects which can quickly become major….
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 effects experienced by drivers is a noticeable loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will quickly affect 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 swapping your diesel fuel filter regularly>
