It is never pleasurable to hear an injector noise on your Nissan Qashqai 2. It is a noise that appears repeatedly, usually when you accelerate or your engine is idling. However, this indication may be related to multiple kind of trouble with your automobile injectors. It may not be anything major, but when a recurrent noise comes out, you have to be sure. Especially since repairing your Nissan Qashqai 2’s injectors can be expensive. That’s why our team chose to write this content page in order to help you see more clearly, learn about the different plausible failures and determine your problem. To do this, we will first look at the normal function and usefulness of the injectors in your Nissan Qashqai 2, then at the plausible reasons from which an injector noise may come.
Purposes of the injectors
Injectors are a very significant part of the operation of your engine. They were launched 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 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 obtained from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their purpose 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 based on the injectors of your Nissan Qashqai 2
Hearing injector noises on your Nissan Qashqai 2 may come from different sources, we will now concentrate on the potential causes of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be used to eliminate them. If you hear another clicking noise but it is not from your injectors, we recommend you to examine this content page about clicking noise on Nissan Qashqai 2 to find the cause.
The explanations for injector clicking or knocking noise Nissan Qashqai 2
A clicking or knocking noise from your injectors can be explained for different explanations. Indeed, the injectors of your Nissan Qashqai 2 have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its objective is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is altered, 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 induce thoses knocking or clicking noises on your Nissan Qashqai 2. The main cause of these concerns generally originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably lead to a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Nissan Qashqai 2, read this content page for more informations.
The consequences of injector noise on Nissan Qashqai 2
Now that we have reviewed the different causes for injector noise on your Nissan Qashqai 2, we will end by stating the possible end result 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 promptly 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 consequences felt by drivers is a significant loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will promptly harm your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks relating 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 swapping your diesel fuel filter regularly>
