It is never pleasant to acknowledge an injector noise on your Toyota Aygo. It is a noise that comes up continually, usually when you accelerate or your engine is idling. However, this indication may be linked to multiple sort of problems with your car injectors. It may not be anything serious, but when a continuing noise happens, you have to be sure. Specifically since repairing your Toyota Aygo’s injectors can be costly. That’s why our team decided to produce this content page in order to help you see more clearly, learn about the different possible failures and identify your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Toyota Aygo, then at the possible causes from which an injector noise may come.injector-noise-toyota-aygo

Benefits of the injectors

Injectors are a very fundamental part of the operation of your engine motor. They were introduced to the modern automobiles 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data received 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 obtain the best possible combustion in the cylinders.

The different reasons of a clicking or knocking noise coming from the injectors of your Toyota Aygo

Discovering injector noises on your Toyota Aygo may result from different origins, we will now concentrate on the potential triggers of these. Generally, 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 adopted to stop them. If you acknowledge another clicking noise but it is not from your injectors, we advise you to browse this content page about clicking noise on Toyota Aygo to discover the trigger.

The causes for injector clicking or knocking noise Toyota Aygo

A clicking or knocking noise from your injectors can be justified by different causes. Indeed, the injectors of your Toyota Aygo 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 goal is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three tasks is altered, the main role of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders because 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 Aygo. The main trigger of these situations usually originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably produce a malfunction of the injector. If after verifying, this noise originates from another element of the engine of your Toyota Aygo, read this content page for more informations.

The effects of injector noise on Toyota Aygo

Now that we have analyzed the several causes for injector noise on your Toyota Aygo, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is blocked, or damaged, or your entire fuel rail is involved, you cannot escape these effects which can promptly become serious….
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 common consequences noticed by drivers is a severe 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 degrading one of your pistons or your engine. Poor combustion will promptly affect your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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 swapping your diesel fuel filter regularly>