It is rarely ever relaxing to hear an injector noise on your Renault Laguna 2. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this indicator may be connected to several types of trouble with your car injectors. It may not be anything serious, but when a recurrent noise appears, you have to be sure. Specifically since replacing your Renault Laguna 2’s injectors can be costly. That’s why our team chose to prepare this article content in order to support you see more clearly, learn about the different plausible failures and establish your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Renault Laguna 2, then at the plausible triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very useful part of the operation of your engine. They were brought in 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 precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data received from the various sensors equipping the car (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 origins of a clicking or knocking noise based on the injectors of your Renault Laguna 2
Experiencing injector noises on your Renault Laguna 2 may come from different locations, we will now focus on the potential causes of these. Generally, 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 used to eliminate them. If you hear another clicking noise but it is not from your injectors, we encourage you to go through this article content about clicking noise on Renault Laguna 2 to find the reason.
The explanations for injector clicking or knocking noise Renault Laguna 2
A clicking or knocking noise from your injectors can be explained for different explanations. Indeed, the injectors of your Renault Laguna 2 have three main missions, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its goal is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three functions is altered, the main functionality of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Renault Laguna 2. The main reason of these situations usually originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably produce a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Renault Laguna 2, read this article content for more informations.
The effects of injector noise on Renault Laguna 2
Now that we have examined the different reasons for injector noise on your Renault Laguna 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 consequences which can promptly become severe….
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 known effects noticed by drivers is a significant 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 affect 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>
