It is hardly ever relaxing to notice an injector noise on your Renault Laguna. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this symptom may be connected to multiple types of complications with your car injectors. It may not be anything serious, but when a repeated noise comes out, you have to be sure. Most importantly since fixing your Renault Laguna’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 conceivable failures and distinguish your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Renault Laguna, then at the conceivable causes from which an injector noise may come.
Benefits of the injectors
Injectors are a very vital element of the operation of your engine unit. They were brought in to the modern vehicles 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 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 obtained 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 coming from the injectors of your Renault Laguna
Experiencing injector noises on your Renault Laguna may result from different sources, we will now center on the potential causes of these. In most cases, the common 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 stop them. If you notice another clicking noise but it is not from your injectors, we encourage you to go through this article about clicking noise on Renault Laguna to locate the trigger.
The reasons for injector clicking or knocking noise Renault Laguna
A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Renault Laguna 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 task is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three features is altered, 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 due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Renault Laguna. The main trigger of these trouble usually originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Renault Laguna, have a look at this article for more infos.
The effects of injector noise on Renault Laguna
Now that we have analyzed the different reasons for injector noise on your Renault Laguna, 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 side effects 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 common consequences noticed by drivers is a distinctive 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 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>
