It is never pleasant to experience an injector noise on your Toyota Yaris 2. It is a noise that arises frequently, usually when you accelerate or your engine is idling. However, this indication may be linked to different kind of concerns with your automobile injectors. It may not be anything serious, but when a repeated noise happens, you have to be sure. Especially since repairing your Toyota Yaris 2’s injectors can be costly. That’s why our team decided to write this article content in order to support you see more clearly, learn about the different possible failures and identify your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Toyota Yaris 2, then at the possible triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very fundamental part of the operation of your engine unit. They were released to the modern cars about 20 years ago. Before their appearance, 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 received from the various sensors equipping the automobile (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 get the best possible combustion in the cylinders.
The different origins of a clicking or knocking noise caused by the injectors of your Toyota Yaris 2
Listening injector noises on your Toyota Yaris 2 may result from different sources, we will now center on the potential causes of these. Generally, the typical noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be used to get rid of them. If you experience another clicking noise but it is not from your injectors, we suggest you to read this article content about clicking noise on Toyota Yaris 2 to find the cause.
The explanations for injector clicking or knocking noise Toyota Yaris 2
A clicking or knocking noise from your injectors can be explained for different explanations. Indeed, the injectors of your Toyota Yaris 2 have three main missions, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate 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 features is altered, the main functionality of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Toyota Yaris 2. The main cause of these situations generally 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 part of the engine of your Toyota Yaris 2, read this article content for more infos.
The end result of injector noise on Toyota Yaris 2
Now that we have reviewed the several reasons for injector noise on your Toyota Yaris 2, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is blocked, or broken, or your entire fuel rail is involved, you cannot escape these effects which can quickly become major….
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 known effects noticed by drivers is a noticeable 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 quickly damage your cylinders or pistons and your engine may tighten.
Here are three little tips 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>
