It is never relaxing to listen to an injector noise on your Nissan Juke. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this warning sign may be related to different kind of concerns with your vehicle injectors. It may not be anything severe, but when a recurrent noise shows up, you have to be sure. Specifically since replacing your Nissan Juke’s injectors can be costly. That’s why our team chose to create this article 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 functioning and usefulness of the injectors in your Nissan Juke, then at the plausible triggers from which an injector noise may come.injector-noise-nissan-juke

Functions of the injectors

Injectors are a very fundamental part of the operation of your engine unit. They were introduced to the modern cars about 20 years ago. Before their introduction, 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 collected from the various sensors equipping the vehicle (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 triggers of a clicking or knocking noise coming from the injectors of your Nissan Juke

Experiencing injector noises on your Nissan Juke may come from different sources, we will now center on the potential causes of these. Generally, the typical noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be used to get rid of them. If you listen to another clicking noise but it is not from your injectors, we advise you to go through this article about clicking noise on Nissan Juke to locate the reason.

The explanations for injector clicking or knocking noise Nissan Juke

A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Nissan Juke have three main missions, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its objective is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the goal of improving combustion. If one of these three characteristics is altered, 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 induce thoses knocking or clicking noises on your Nissan Juke. The main reason 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 result in a malfunction of the injector. If after verifying, this noise originates from another part of the engine of your Nissan Juke, have a look at this article for more infos.

The repercussions of injector noise on Nissan Juke

Now that we have reviewed the different causes for injector noise on your Nissan Juke, we will end by stating the possible effects 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 repercussions which can almost instantly become serious….
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 regular 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 undoubtedly have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will almost instantly harm 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>