It is never pleasurable to listen to an injector noise on your Infiniti QX50. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this symptom may be relating to different types of concerns with your car injectors. It may not be anything serious, but when a persistent noise happens, you have to be sure. Most importantly since repairing your Infiniti QX50’s injectors can be costly. That’s why our team chose to produce this article in order to help you see more clearly, learn about the different conceivable failures and identify your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Infiniti QX50, then at the conceivable triggers from which an injector noise may come.
Attributes of the injectors
Injectors are a very useful element 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 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 accumulated 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 origins of a clicking or knocking noise coming from the injectors of your Infiniti QX50
Experiencing injector noises on your Infiniti QX50 may come from different locations, we will now concentrate on the potential causes of these. In general, the common noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be applied to get rid of them. If you listen to another clicking noise but it is not from your injectors, we recommend you to go through this article about clicking noise on Infiniti QX50 to locate the trigger.
The causes for injector clicking or knocking noise Infiniti QX50
A clicking or knocking noise from your injectors can be justified by different causes. Indeed, the injectors of your Infiniti QX50 have three main missions, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its task is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the goal of improving combustion. If one of these three functions 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 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 Infiniti QX50. The main trigger of these trouble in most cases originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably lead to a malfunction of the injector. If after verifying, this noise originates from another element of the engine of your Infiniti QX50, browse this article for more informations.
The repercussions of injector noise on Infiniti QX50
Now that we have examined the diverse reasons for injector noise on your Infiniti QX50, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these repercussions which can fairly quickly 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 basic repercussions noticed by drivers is a severe loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will fairly quickly harm your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks connected 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>
