It is rarely ever pleasant to listen an injector noise on your Fiat Fullback. It is a noise that happens frequently, usually when you accelerate or your engine is idling. However, this symptom may be relating to different kind of problems with your vehicle injectors. It may not be anything severe, but when a continuing noise appears, you have to be sure. Specifically since replacing your Fiat Fullback’s injectors can be costly. That’s why our team chose to write this article in order to support you see more clearly, learn about the different conceivable failures and identify your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Fiat Fullback, then at the conceivable reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very significant part of the operation of your engine motor. They were introduced to the modern vehicles about 20 years ago. Before their introduction, more conventional carburettor-type intake systems were employed, 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 vehicle (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 caused by the injectors of your Fiat Fullback
Hearing injector noises on your Fiat Fullback may result from different sources, we will now concentrate on the potential causes of these. In general, the usual 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 eliminate them. If you listen another clicking noise but it is not from your injectors, we advise you to read this article about clicking noise on Fiat Fullback to find the reason.
The causes for injector clicking or knocking noise Fiat Fullback
A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Fiat Fullback 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 mission is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the goal of improving combustion. If one of these three characteristics is modified, 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 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 Fiat Fullback. The main reason of these problems commonly originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after checking, this noise originates from another part of the engine of your Fiat Fullback, check this article for more informations.
The end result of injector noise on Fiat Fullback
Now that we have analyzed the different reasons for injector noise on your Fiat Fullback, we will end by stating the possible side 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 major….
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 regular repercussions felt by drivers is a significant loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will inevitably 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 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>
