It is never pleasurable to listen to an injector noise on your Toyota Corolla Verso. It is a noise that happens regularly, usually when you accelerate or your engine is idling. However, this warning sign may be connected to multiple sort of trouble with your automobile injectors. It may not be anything major, but when a recurrent noise comes out, you have to be sure. Specifically since repairing your Toyota Corolla Verso’s injectors can be expensive. That’s why our team chose to write this article in order to support you see more clearly, learn about the different plausible failures and establish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Toyota Corolla Verso, then at the plausible causes from which an injector noise may come.injector-noise-toyota-corolla-verso

Functions of the injectors

Injectors are a very important part of the operation of your engine. 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 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 received 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 Toyota Corolla Verso

Listening injector noises on your Toyota Corolla Verso may originate from different origins, we will now center on the potential causes of these. Generally, the regular noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be implemented to prevent them. If you listen to another clicking noise but it is not from your injectors, we suggest you to go through this article about clicking noise on Toyota Corolla Verso to find the cause.

The reasons for injector clicking or knocking noise Toyota Corolla Verso

A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Toyota Corolla Verso have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate 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 tasks 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 Toyota Corolla Verso. The main cause of these trouble in most cases originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably lead to a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Toyota Corolla Verso, browse this article for more infos.

The consequences of injector noise on Toyota Corolla Verso

Now that we have analyzed the diverse reasons for injector noise on your Toyota Corolla Verso, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is clogged, or broken, or your entire fuel rail is involved, you cannot escape these repercussions which can almost instantly 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 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 affect 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>