It is hardly ever pleasant to listen an injector noise on your Renault Grand Modus. It is a noise that happens regularly, usually when you accelerate or your engine is idling. However, this symptom may be connected to several kind of trouble with your car injectors. It may not be anything severe, but when a persistent noise comes out, you have to be sure. Specifically since fixing your Renault Grand Modus’s injectors can be expensive. That’s why our team decided to compose this content page in order to support you see more clearly, learn about the different plausible failures and determine your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Renault Grand Modus, then at the plausible triggers from which an injector noise may come.
Purposes of the injectors
Injectors are a very important component of the operation of your engine unit. They were introduced to the modern vehicles about 20 years ago. Before their arrival, 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 compiled from the various sensors equipping the car (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 caused by the injectors of your Renault Grand Modus
Listening injector noises on your Renault Grand Modus may originate from different sources, we will now look into the potential triggers of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be put into practice to prevent them. If you listen another clicking noise but it is not from your injectors, we advise you to examine this content page about clicking noise on Renault Grand Modus to find the cause.
The explanations for injector clicking or knocking noise Renault Grand Modus
A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Renault Grand Modus have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is altered, 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Renault Grand Modus. The main cause of these concerns commonly comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably cause a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Renault Grand Modus, browse this content page for more informations.
The effects of injector noise on Renault Grand Modus
Now that we have examined the different causes for injector noise on your Renault Grand Modus, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can quickly become major….
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 basic repercussions noticed by drivers is a severe loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will undoubtedly have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will quickly harm your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks linked 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>
