It is rarely ever relaxing to notice an injector noise on your Alfa Romeo 159. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this indicator may be linked to different types of trouble with your vehicle injectors. It may not be anything serious, but when a continuing noise comes out, you have to be sure. Most importantly since repairing your Alfa Romeo 159’s injectors can be expensive. That’s why our team chose to prepare this article content in order to support you see more clearly, learn about the different conceivable failures and determine your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Alfa Romeo 159, then at the conceivable triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very vital component of the operation of your engine motor. They were introduced to the modern cars 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 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 received from the various sensors equipping the vehicle (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 get the best possible combustion in the cylinders.
The different triggers of a clicking or knocking noise coming from the injectors of your Alfa Romeo 159
Experiencing injector noises on your Alfa Romeo 159 may result from different locations, we will now center on the potential triggers of these. Generally, the typical noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be used to stop them. If you notice another clicking noise but it is not from your injectors, we suggest you to examine this article content about clicking noise on Alfa Romeo 159 to locate the trigger.
The causes for injector clicking or knocking noise Alfa Romeo 159
A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Alfa Romeo 159 have three main missions, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the objective of improving combustion. If one of these three tasks is modified, the main role of the injectors will be disturbed 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 induce thoses knocking or clicking noises on your Alfa Romeo 159. The main trigger of these concerns generally originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably cause a malfunction of the injector. If after verifying, this noise originates from another part of the engine of your Alfa Romeo 159, check this article content for more infos.
The side effects of injector noise on Alfa Romeo 159
Now that we have analyzed the diverse causes for injector noise on your Alfa Romeo 159, we will end by stating the possible effects of malfunctioning one or more of your injectors. Whether only one is blocked, or damaged, or your entire fuel rail is involved, you cannot escape these side effects which can quickly become severe….
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 noticed 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 degrading 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 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>
