It is never pleasant to experience an injector noise on your Renault Master 2. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this indication may be connected to different types of complications with your vehicle injectors. It may not be anything major, but when a frequent noise happens, you have to be sure. Especially since fixing your Renault Master 2’s injectors can be costly. That’s why our team decided to prepare this article content in order to help you see more clearly, learn about the different conceivable failures and determine your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Renault Master 2, then at the conceivable triggers from which an injector noise may come.injector-noise-renault-master-2

Functions of the injectors

Injectors are a very important component of the operation of your engine motor. They were introduced 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 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 compiled from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their aim 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 causes of a clicking or knocking noise caused by the injectors of your Renault Master 2

Listening injector noises on your Renault Master 2 may come from different origins, we will now look into the potential triggers of these. Generally, 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 implemented to prevent them. If you experience another clicking noise but it is not from your injectors, we advise you to browse this article content about clicking noise on Renault Master 2 to locate the cause.

The reasons for injector clicking or knocking noise Renault Master 2

A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Renault Master 2 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 task 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 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Renault Master 2. The main cause of these problems usually originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably end in a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Renault Master 2, browse this article content for more infos.

The effects of injector noise on Renault Master 2

Now that we have examined the several causes for injector noise on your Renault Master 2, 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 effects which can quickly become critical….
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. In fact, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will quickly damage 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 swapping your diesel fuel filter regularly>