It is never pleasant to listen an injector noise on your Citroen Nemo. It is a noise that comes up repeatedly, usually when you accelerate or your engine is idling. However, this indicator may be linked to multiple sort of trouble with your vehicle injectors. It may not be anything serious, but when a recurrent noise arises, you have to be sure. Specifically since fixing your Citroen Nemo’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 determine your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Citroen Nemo, then at the possible triggers from which an injector noise may come.
Benefits of the injectors
Injectors are a very important element of the operation of your engine motor. They were introduced to the modern cars about 20 years ago. Before their arrival, 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 purpose 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 caused by the injectors of your Citroen Nemo
Finding out injector noises on your Citroen Nemo may result from different sources, we will now center on the potential triggers of these. Generally, the common noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be implemented to stop them. If you listen another clicking noise but it is not from your injectors, we encourage you to read this content about clicking noise on Citroen Nemo to locate the trigger.
The reasons for injector clicking or knocking noise Citroen Nemo
A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Citroen Nemo have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three characteristics 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 provoke thoses knocking or clicking noises on your Citroen Nemo. The main trigger of these concerns in most cases comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably result in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Citroen Nemo, have a look at this content for more informations.
The side effects of injector noise on Citroen Nemo
Now that we have analyzed the several reasons for injector noise on your Citroen Nemo, we will end by stating the possible end result 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 side effects which can promptly become severe….
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 repercussions noticed 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 degrading 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 suggestions 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 changing your diesel fuel filter regularly>
