It is never relaxing to hear an injector noise on your Fiat Doblo 2. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this symptom may be linked to several sort of complications with your car injectors. It may not be anything severe, but when a persistent noise arises, you have to be sure. Especially since fixing your Fiat Doblo 2’s injectors can be expensive. That’s why our team decided to produce this article content in order to help you see more clearly, learn about the different plausible failures and distinguish your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Fiat Doblo 2, then at the plausible reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very fundamental element of the operation of your engine. 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 opportunity, 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 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 obtain the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise caused by the injectors of your Fiat Doblo 2
Hearing injector noises on your Fiat Doblo 2 may originate from different origins, we will now look into the potential triggers of these. Generally, 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 adopted to eliminate them. If you hear another clicking noise but it is not from your injectors, we recommend you to read this article content about clicking noise on Fiat Doblo 2 to discover the reason.
The causes for injector clicking or knocking noise Fiat Doblo 2
A clicking or knocking noise from your injectors can be justified by different causes. Indeed, the injectors of your Fiat Doblo 2 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 mission 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 functions is modified, the main purpose of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders because 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 Doblo 2. The main reason of these trouble 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 result in a malfunction of the injector. If after checking, this noise comes from another part of the engine of your Fiat Doblo 2, have a look at this article content for more informations.
The end result of injector noise on Fiat Doblo 2
Now that we have reviewed the several causes for injector noise on your Fiat Doblo 2, 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 repercussions which can quickly become considerable….
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 experienced by drivers is a serious loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will inevitably have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will quickly damage your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks linked 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>
