It is never enjoyable to notice an injector noise on your Toyota C HR. It is a noise that arises frequently, usually when you accelerate or your engine is idling. However, this sign may be related to multiple kind of trouble with your car injectors. It may not be anything serious, but when a continuing noise arises, you have to be sure. Most importantly since repairing your Toyota C HR’s injectors can be costly. That’s why our team chose to compose this content page in order to help you see more clearly, learn about the different conceivable failures and identify your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Toyota C HR, then at the conceivable reasons from which an injector noise may come.injector-noise-toyota-c-hr

Purposes of the injectors

Injectors are a very important component of the operation of your engine unit. They were released to the modern vehicles about 20 years ago. Before their appearance, 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 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 obtained from the various sensors equipping the car (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 triggers of a clicking or knocking noise caused by the injectors of your Toyota C HR

Listening injector noises on your Toyota C HR may result from different origins, 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 different origins of these noises and the solutions to be used to get rid of them. If you notice another clicking noise but it is not from your injectors, we advise you to browse this content page about clicking noise on Toyota C HR to locate the cause.

The causes for injector clicking or knocking noise Toyota C HR

A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Toyota C HR have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to control 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 modified, the main purpose of the injectors will be disturbed 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 trigger thoses knocking or clicking noises on your Toyota C HR. The main cause of these trouble generally originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably cause a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Toyota C HR, check this content page for more informations.

The effects of injector noise on Toyota C HR

Now that we have examined the different reasons for injector noise on your Toyota C HR, we will end by stating the possible effects 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 side effects which can almost instantly become serious….
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 basic repercussions experienced 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 obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will almost instantly harm your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks associated 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>