It is rarely ever relaxing to listen to an injector noise on your Nissan Altima. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this indicator may be linked to different kind of concerns with your car injectors. It may not be anything major, but when a repeated noise appears, you have to be sure. Specifically since replacing your Nissan Altima’s injectors can be costly. That’s why our team chose to create this article content in order to help you see more clearly, learn about the different conceivable failures and distinguish your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Nissan Altima, then at the conceivable triggers from which an injector noise may come.injector-noise-nissan-altima

Functions of the injectors

Injectors are a very important component of the operation of your engine unit. They were released 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 opportunity, 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 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 causes of a clicking or knocking noise coming from the injectors of your Nissan Altima

Listening injector noises on your Nissan Altima may originate from different origins, we will now look into the potential triggers of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be adopted to eliminate them. If you listen to another clicking noise but it is not from your injectors, we advise you to browse this article content about clicking noise on Nissan Altima to locate the reason.

The causes for injector clicking or knocking noise Nissan Altima

A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Nissan Altima have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the objective of improving combustion. If one of these three features is altered, the main role 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 trigger thoses knocking or clicking noises on your Nissan Altima. The main reason of these situations commonly comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after checking, this noise comes from another part of the engine of your Nissan Altima, read this article content for more informations.

The effects of injector noise on Nissan Altima

Now that we have examined the several reasons for injector noise on your Nissan Altima, we will end by stating the possible effects 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 repercussions which can almost instantly 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 basic consequences experienced by drivers is a significant loss of power. In fact, 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 damage 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>