It is rarely ever pleasurable to listen an injector noise on your Renault Koleos. It is a noise that comes up repeatedly, usually when you accelerate or your engine is idling. However, this indicator may be linked to different kind of problems with your automobile injectors. It may not be anything severe, but when a frequent noise arises, you have to be sure. Most importantly since replacing your Renault Koleos’s injectors can be expensive. That’s why our team decided to compose this content page in order to help 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 Renault Koleos, then at the possible reasons from which an injector noise may come.
Purposes of the injectors
Injectors are a very significant element of the operation of your engine motor. They were brought in to the modern automobiles 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 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 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 triggers of a clicking or knocking noise coming from the injectors of your Renault Koleos
Discovering injector noises on your Renault Koleos may result from different origins, we will now look into the potential causes of these. In general, the usual noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be adopted to get rid of them. If you listen another clicking noise but it is not from your injectors, we recommend you to go through this content page about clicking noise on Renault Koleos to discover the trigger.
The explanations for injector clicking or knocking noise Renault Koleos
A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Renault Koleos have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its objective is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three attributes is modified, 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 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 Renault Koleos. The main trigger of these situations usually comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably cause a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Renault Koleos, read this content page for more infos.
The effects of injector noise on Renault Koleos
Now that we have reviewed the different causes for injector noise on your Renault Koleos, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is clogged, or broken, or your entire fuel rail is involved, you cannot escape these effects which can almost instantly 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 consequences felt by drivers is a noticeable loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will undoubtedly have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will almost instantly damage your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks connected 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>
