It is hardly ever pleasant to listen to an injector noise on your Infiniti QX60. It is a noise that happens frequently, usually when you accelerate or your engine is idling. However, this sign may be linked to multiple kind of complications with your vehicle injectors. It may not be anything major, but when a recurrent noise happens, you have to be sure. Especially since replacing your Infiniti QX60’s injectors can be costly. That’s why our team chose to write this content in order to help you see more clearly, learn about the different possible failures and identify your problem. To do this, we will first look at the normal function and usefulness of the injectors in your Infiniti QX60, then at the possible triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very significant part of the operation of your engine unit. They were brought in to the modern cars 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 possibility, 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 collected 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 obtain the best possible combustion in the cylinders.
The different origins of a clicking or knocking noise coming from the injectors of your Infiniti QX60
Discovering injector noises on your Infiniti QX60 may result from different sources, we will now center on the potential causes of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be implemented to eliminate them. If you listen to another clicking noise but it is not from your injectors, we recommend you to read this content about clicking noise on Infiniti QX60 to locate the reason.
The causes for injector clicking or knocking noise Infiniti QX60
A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Infiniti QX60 have three main tasks, to control 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 finally the homogeneity of the mixture, always with the goal of improving combustion. If one of these three attributes 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 because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Infiniti QX60. The main reason of these trouble 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 end in a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Infiniti QX60, read this content for more informations.
The end result of injector noise on Infiniti QX60
Now that we have reviewed the different causes for injector noise on your Infiniti QX60, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is blocked, or damaged, or your entire fuel rail is involved, you cannot escape these side effects which can almost instantly 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 consequences experienced 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 obviously 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 tips 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>
