It is never pleasant to perceive an injector noise on your Citroen Grand C4 Picasso. It is a noise that appears frequently, usually when you accelerate or your engine is idling. However, this indicator may be related to multiple kind of problems with your automobile injectors. It may not be anything major, but when a frequent noise happens, you have to be sure. Especially since fixing your Citroen Grand C4 Picasso’s injectors can be expensive. That’s why our team chose to create this content page in order to help you see more clearly, learn about the different conceivable failures and establish your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Citroen Grand C4 Picasso, then at the conceivable causes from which an injector noise may come.
Attributes of the injectors
Injectors are a very important part of the operation of your engine unit. They were launched to the modern automobiles about 20 years ago. Before their appearance, 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 ability, 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 automobile (engine temperature, acceleration level, engine speed, etc.). Their goal 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 reasons of a clicking or knocking noise coming from the injectors of your Citroen Grand C4 Picasso
Listening injector noises on your Citroen Grand C4 Picasso may come from different sources, we will now center on the potential causes of these. Generally, the regular noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be implemented to eliminate them. If you perceive another clicking noise but it is not from your injectors, we advise you to read this content page about clicking noise on Citroen Grand C4 Picasso to find the trigger.
The reasons for injector clicking or knocking noise Citroen Grand C4 Picasso
A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Citroen Grand C4 Picasso have three main tasks, 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 finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three tasks is modified, 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 Grand C4 Picasso. The main trigger of these problems 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 lead to a malfunction of the injector. If after verifying, this noise comes from another component of the engine of your Citroen Grand C4 Picasso, read this content page for more informations.
The effects of injector noise on Citroen Grand C4 Picasso
Now that we have reviewed the different causes for injector noise on your Citroen Grand C4 Picasso, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these effects 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 common repercussions felt by drivers is a serious 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 promptly damage your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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 changing your diesel fuel filter regularly>
