It is rarely ever relaxing to hear an injector noise on your Toyota Corolla. It is a noise that appears frequently, usually when you accelerate or your engine is idling. However, this warning sign may be linked to different kind of trouble with your automobile injectors. It may not be anything severe, but when a persistent noise shows up, you have to be sure. Specifically since repairing your Toyota Corolla’s injectors can be expensive. That’s why our team chose to prepare this article content in order to help you see more clearly, learn about the different conceivable failures and determine your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Toyota Corolla, then at the conceivable triggers from which an injector noise may come.injector-noise-toyota-corolla

Benefits of the injectors

Injectors are a very important part of the operation of your engine. They were released to the modern automobiles about 20 years ago. Before their introduction, 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 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 aim 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 origins of a clicking or knocking noise based on the injectors of your Toyota Corolla

Discovering injector noises on your Toyota Corolla may originate from different origins, we will now concentrate on the potential triggers of these. In most cases, the common noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be implemented to get rid of them. If you hear another clicking noise but it is not from your injectors, we recommend you to go through this article content about clicking noise on Toyota Corolla to locate the trigger.

The reasons for injector clicking or knocking noise Toyota Corolla

A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Toyota Corolla have three main missions, to manage 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 finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three tasks is modified, 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 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 Corolla. The main trigger of these concerns usually comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably result in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Toyota Corolla, browse this article content for more infos.

The repercussions of injector noise on Toyota Corolla

Now that we have examined the diverse causes for injector noise on your Toyota Corolla, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these side effects which can fairly quickly 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 basic repercussions experienced 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 fairly quickly affect your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks linked 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 changing your diesel fuel filter regularly>