It is rarely ever pleasant to experience an injector noise on your Toyota Avensis. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this indication may be linked to different sort of problems with your automobile injectors. It may not be anything major, but when a continuing noise comes out, you have to be sure. Most importantly since replacing your Toyota Avensis’s injectors can be expensive. That’s why our team decided to compose this article in order to support you see more clearly, learn about the different possible failures and distinguish your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Toyota Avensis, then at the possible reasons from which an injector noise may come.injector-noise-toyota-avensis

Benefits of the injectors

Injectors are a very useful component of the operation of your engine. They were brought in to the modern automobiles about 20 years ago. Before their arrival, 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 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 obtained 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 triggers of a clicking or knocking noise based on the injectors of your Toyota Avensis

Hearing injector noises on your Toyota Avensis may come from different sources, we will now concentrate on the potential triggers of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be implemented to stop them. If you experience another clicking noise but it is not from your injectors, we encourage you to read this article about clicking noise on Toyota Avensis to discover the trigger.

The reasons for injector clicking or knocking noise Toyota Avensis

A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Toyota Avensis 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 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 attributes 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 due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Toyota Avensis. The main trigger of these concerns commonly originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after checking, this noise originates from another element of the engine of your Toyota Avensis, check this article for more infos.

The effects of injector noise on Toyota Avensis

Now that we have examined the diverse causes for injector noise on your Toyota Avensis, we will end by stating the possible end result 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 fairly quickly 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 known repercussions noticed by drivers is a serious loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will surely 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 swapping your diesel fuel filter regularly>