It is never pleasurable to listen to an injector noise on your Citroen C4 Picasso 2. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this indication may be linked to several sort of trouble with your car injectors. It may not be anything major, but when a frequent noise comes out, you have to be sure. Most importantly since fixing your Citroen C4 Picasso 2’s injectors can be expensive. That’s why our team decided to create this content page in order to support you see more clearly, learn about the different possible failures and determine your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Citroen C4 Picasso 2, then at the possible reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very vital component of the operation of your engine. They were launched to the modern cars about 20 years ago. Before their introduction, 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 compiled 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 obtain the best possible combustion in the cylinders.
The different causes of a clicking or knocking noise based on the injectors of your Citroen C4 Picasso 2
Experiencing injector noises on your Citroen C4 Picasso 2 may originate from different origins, we will now focus on the potential triggers of these. In general, the regular noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be implemented to eliminate them. If you listen to another clicking noise but it is not from your injectors, we advise you to read this content page about clicking noise on Citroen C4 Picasso 2 to locate the cause.
The causes for injector clicking or knocking noise Citroen C4 Picasso 2
A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Citroen C4 Picasso 2 have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the objective of improving combustion. If one of these three attributes is modified, the main functionality of the injectors will be disrupted 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 C4 Picasso 2. The main cause of these problems commonly comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Citroen C4 Picasso 2, have a look at this content page for more infos.
The repercussions of injector noise on Citroen C4 Picasso 2
Now that we have analyzed the several causes for injector noise on your Citroen C4 Picasso 2, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is blocked, or broken, or your entire fuel rail is involved, you cannot escape these repercussions which can promptly become serious….
First, you risk destroying your exhaust unit 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 regular repercussions noticed by drivers is a severe loss of power. Indeed, 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 tips to limit the risks connected 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 swapping your diesel fuel filter regularly>
