It is hardly ever pleasurable to perceive an injector noise on your Citroen Ds3. It is a noise that arises repeatedly, usually when you accelerate or your engine is idling. However, this sign may be related to multiple kind of problems with your vehicle injectors. It may not be anything severe, but when a recurrent noise shows up, you have to be sure. Most importantly since fixing your Citroen Ds3’s injectors can be expensive. That’s why our team decided to produce this article content in order to support you see more clearly, learn about the different conceivable failures and determine your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Citroen Ds3, then at the conceivable reasons from which an injector noise may come.injector-noise-citroen-ds3

Functions of the injectors

Injectors are a very significant element of the operation of your engine. They were released to the modern cars about 20 years ago. Before their appearance, 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data collected from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their objective 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 coming from the injectors of your Citroen Ds3

Hearing injector noises on your Citroen Ds3 may come from different origins, we will now look into the potential causes of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be put into practice to prevent them. If you perceive another clicking noise but it is not from your injectors, we recommend you to go through this article content about clicking noise on Citroen Ds3 to discover the cause.

The causes for injector clicking or knocking noise Citroen Ds3

A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Citroen Ds3 have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its task is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the target 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 Citroen Ds3. The main cause of these problems 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 lead to a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Citroen Ds3, read this article content for more informations.

The consequences of injector noise on Citroen Ds3

Now that we have analyzed the different causes for injector noise on your Citroen Ds3, 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 promptly become serious….
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 common effects experienced by drivers is a noticeable 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 promptly harm your cylinders or pistons and your engine may tighten.
Here are three little tips 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 swapping your diesel fuel filter regularly>