It is rarely ever pleasant to perceive an injector noise on your Citroen Xantia. It is a noise that happens frequently, usually when you accelerate or your engine is idling. However, this sign may be linked to several sort of problems with your car injectors. It may not be anything severe, but when a repeated noise appears, you have to be sure. Most importantly since replacing your Citroen Xantia’s injectors can be costly. That’s why our team decided to create this content page in order to help you see more clearly, learn about the different possible failures and establish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Citroen Xantia, then at the possible triggers from which an injector noise may come.injector-noise-citroen-xantia

Functions of the injectors

Injectors are a very fundamental part 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 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 collected from the various sensors equipping the car (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 get the best possible combustion in the cylinders.

The different origins of a clicking or knocking noise coming from the injectors of your Citroen Xantia

Listening injector noises on your Citroen Xantia may result from different locations, we will now concentrate on the potential triggers of these. Generally, the typical noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be applied to eliminate them. If you perceive another clicking noise but it is not from your injectors, we encourage you to go through this content page about clicking noise on Citroen Xantia to find the reason.

The causes for injector clicking or knocking noise Citroen Xantia

A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Citroen Xantia have three main missions, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its objective is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three attributes is altered, the main role of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Citroen Xantia. The main reason of these situations commonly comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably produce a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Citroen Xantia, browse this content page for more informations.

The consequences of injector noise on Citroen Xantia

Now that we have examined the several reasons for injector noise on your Citroen Xantia, we will end by stating the possible 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 promptly 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 basic consequences felt by drivers is a serious 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 deteriorating one of your pistons or your engine. Poor combustion will promptly 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 swapping your diesel fuel filter regularly>