It is never pleasant to notice an injector noise on your Citroen C8. It is a noise that arises repeatedly, usually when you accelerate or your engine is idling. However, this warning sign may be connected to different kind of problems with your vehicle injectors. It may not be anything severe, but when a continuing noise appears, you have to be sure. Especially since repairing your Citroen C8’s injectors can be expensive. That’s why our team chose to produce this content in order to support you see more clearly, learn about the different possible failures and identify your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Citroen C8, then at the possible reasons from which an injector noise may come.
Benefits of the injectors
Injectors are a very vital part of the operation of your engine. They were launched to the modern vehicles about 20 years ago. Before their introduction, 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 ability, 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 accumulated 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 get the best possible combustion in the cylinders.
The different causes of a clicking or knocking noise caused by the injectors of your Citroen C8
Discovering injector noises on your Citroen C8 may originate from different origins, we will now look into the potential causes of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be applied to get rid of them. If you notice another clicking noise but it is not from your injectors, we suggest you to read this content about clicking noise on Citroen C8 to discover the trigger.
The causes for injector clicking or knocking noise Citroen C8
A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Citroen C8 have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its goal is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the objective of improving combustion. If one of these three functions is altered, 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 as a consequence 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 C8. The main trigger of these concerns generally originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably end up in a malfunction of the injector. If after verifying, this noise originates from another part of the engine of your Citroen C8, have a look at this content for more informations.
The consequences of injector noise on Citroen C8
Now that we have examined the several causes for injector noise on your Citroen C8, 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 consequences which can promptly 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 known effects felt 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 damage your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks connected 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>
