It is hardly ever pleasant to listen to an injector noise on your Citroen C4 Spacetourer. It is a noise that appears frequently, usually when you accelerate or your engine is idling. However, this indication may be linked to different kind of problems with your car injectors. It may not be anything major, but when a repeated noise happens, you have to be sure. Especially since replacing your Citroen C4 Spacetourer’s injectors can be costly. That’s why our team decided to compose this content page in order to help you see more clearly, learn about the different conceivable failures and identify your trouble. To do this, we will first look at the normal running and usefulness of the injectors in your Citroen C4 Spacetourer, then at the conceivable causes from which an injector noise may come.injector-noise-citroen-c4-spacetourer

Attributes of the injectors

Injectors are a very useful part of the operation of your engine unit. They were brought in to the modern automobiles 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 compiled 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 get the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise based on the injectors of your Citroen C4 Spacetourer

Finding out injector noises on your Citroen C4 Spacetourer may originate from different sources, we will now center on the potential triggers of these. In general, the usual 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 listen to another clicking noise but it is not from your injectors, we encourage you to go through this content page about clicking noise on Citroen C4 Spacetourer to find the cause.

The reasons for injector clicking or knocking noise Citroen C4 Spacetourer

A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Citroen C4 Spacetourer have three main missions, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three attributes 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Citroen C4 Spacetourer. The main cause of these concerns generally 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 checking, this noise comes from another component of the engine of your Citroen C4 Spacetourer, read this content page for more informations.

The side effects of injector noise on Citroen C4 Spacetourer

Now that we have reviewed the diverse causes for injector noise on your Citroen C4 Spacetourer, we will end by stating the possible consequences 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 quickly 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 common 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 surely have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will quickly affect your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks relating 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>