It is rarely ever relaxing to hear an injector noise on your Fiat Doblo. It is a noise that arises frequently, usually when you accelerate or your engine is idling. However, this indicator may be related to different kind of problems with your car injectors. It may not be anything major, but when a persistent noise comes out, you have to be sure. Especially since replacing your Fiat Doblo’s injectors can be expensive. That’s why our team decided to produce this content in order to help 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 Fiat Doblo, then at the conceivable causes from which an injector noise may come.
Purposes of the injectors
Injectors are a very useful component of the operation of your engine unit. They were introduced to the modern cars 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 aim 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 origins of a clicking or knocking noise coming from the injectors of your Fiat Doblo
Discovering injector noises on your Fiat Doblo may result from different locations, we will now look into the potential triggers of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be implemented to prevent them. If you hear another clicking noise but it is not from your injectors, we advise you to browse this content about clicking noise on Fiat Doblo to discover the cause.
The reasons for injector clicking or knocking noise Fiat Doblo
A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Fiat Doblo have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its mission is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three tasks 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 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. The main cause of these situations generally comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after checking, this noise comes from another element of the engine of your Fiat Doblo, read this content for more informations.
The consequences of injector noise on Fiat Doblo
Now that we have analyzed the diverse reasons for injector noise on your Fiat Doblo, we will end by stating the possible consequences 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 effects which can almost instantly become serious….
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 basic repercussions experienced by drivers is a significant 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 almost instantly affect your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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>
