It is hardly ever pleasant to listen to an injector noise on your Toyota Avalon. It is a noise that arises frequently, usually when you accelerate or your engine is idling. However, this symptom may be connected to multiple kind of trouble with your vehicle injectors. It may not be anything serious, but when a frequent noise comes out, you have to be sure. Specifically since fixing your Toyota Avalon’s injectors can be costly. That’s why our team decided to write this article in order to support you see more clearly, learn about the different plausible failures and identify your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Toyota Avalon, then at the plausible causes from which an injector noise may come.
Functions of the injectors
Injectors are a very important element 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 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 received from the various sensors equipping the vehicle (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 obtain the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise based on the injectors of your Toyota Avalon
Hearing injector noises on your Toyota Avalon may come from different locations, we will now look into the potential causes of these. In general, 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 applied to stop them. If you listen to another clicking noise but it is not from your injectors, we suggest you to read this article about clicking noise on Toyota Avalon to discover the reason.
The causes for injector clicking or knocking noise Toyota Avalon
A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Toyota Avalon have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its goal is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the objective of improving combustion. If one of these three features is altered, the main purpose 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 Toyota Avalon. The main reason 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 blockage will inevitably produce a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Toyota Avalon, check this article for more infos.
The effects of injector noise on Toyota Avalon
Now that we have examined the several causes for injector noise on your Toyota Avalon, we will end by stating the possible effects 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 fairly quickly become severe….
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 repercussions noticed by drivers is a noticeable 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 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 with 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>
