It is never relaxing to hear an injector noise on your Citroen C3 Picasso. It is a noise that appears frequently, usually when you accelerate or your engine is idling. However, this symptom may be relating to multiple types of concerns with your vehicle injectors. It may not be anything major, but when a recurrent noise shows up, you have to be sure. Especially since repairing your Citroen C3 Picasso’s injectors can be expensive. That’s why our team chose to create this article 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 Citroen C3 Picasso, then at the conceivable reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very fundamental component of the operation of your engine. They were brought in 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 ability, 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 obtained 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 obtain the best possible combustion in the cylinders.
The different origins of a clicking or knocking noise caused by the injectors of your Citroen C3 Picasso
Hearing injector noises on your Citroen C3 Picasso may originate from different origins, we will now concentrate on the potential causes of these. In general, the common noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be put into practice to get rid of them. If you hear another clicking noise but it is not from your injectors, we recommend you to go through this article content about clicking noise on Citroen C3 Picasso to locate the cause.
The reasons for injector clicking or knocking noise Citroen C3 Picasso
A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Citroen C3 Picasso have three main missions, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the target 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 because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Citroen C3 Picasso. The main cause of these trouble in most cases comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably end in a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Citroen C3 Picasso, have a look at this article content for more informations.
The consequences of injector noise on Citroen C3 Picasso
Now that we have reviewed the several causes for injector noise on your Citroen C3 Picasso, 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 consequences which can fairly quickly become severe….
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 felt by drivers is a distinctive 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 fairly quickly harm 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>
