It is rarely ever enjoyable to hear an injector noise on your Citroen Berlingo 2. It is a noise that appears repeatedly, usually when you accelerate or your engine is idling. However, this warning sign may be related to different sort of complications with your vehicle injectors. It may not be anything major, but when a frequent noise shows up, you have to be sure. Specifically since fixing your Citroen Berlingo 2’s injectors can be costly. That’s why our team chose to write this article in order to support you see more clearly, learn about the different plausible failures and distinguish your problem. To do this, we will first look at the normal function and usefulness of the injectors in your Citroen Berlingo 2, then at the plausible triggers from which an injector noise may come.injector-noise-citroen-berlingo-2

Attributes of the injectors

Injectors are a very fundamental component of the operation of your engine unit. They were introduced 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 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 accumulated from the various sensors equipping the vehicle (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 obtain the best possible combustion in the cylinders.

The different causes of a clicking or knocking noise based on the injectors of your Citroen Berlingo 2

Listening injector noises on your Citroen Berlingo 2 may result from different locations, we will now concentrate on the potential triggers of these. Generally, the regular noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be used to eliminate them. If you hear another clicking noise but it is not from your injectors, we suggest you to read this article about clicking noise on Citroen Berlingo 2 to locate the reason.

The explanations for injector clicking or knocking noise Citroen Berlingo 2

A clicking or knocking noise from your injectors can be explained for different explanations. In fact, the injectors of your Citroen Berlingo 2 have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its mission 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 characteristics is altered, the main role of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Citroen Berlingo 2. The main reason 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 blockage will inevitably lead to a malfunction of the injector. If after verifying, this noise comes from another element of the engine of your Citroen Berlingo 2, browse this article for more informations.

The side effects of injector noise on Citroen Berlingo 2

Now that we have reviewed the several causes for injector noise on your Citroen Berlingo 2, 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 critical….
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 effects felt by drivers is a noticeable loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk degrading 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 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 swapping your diesel fuel filter regularly>