It is hardly ever relaxing to acknowledge an injector noise on your Toyota Hilux 4. It is a noise that comes up repeatedly, usually when you accelerate or your engine is idling. However, this indication may be relating to several sort of complications with your vehicle injectors. It may not be anything serious, but when a recurrent noise happens, you have to be sure. Especially since replacing your Toyota Hilux 4’s injectors can be costly. That’s why our team decided to compose this content page in order to support you see more clearly, learn about the different possible failures and determine your problem. To do this, we will first look at the normal function and usefulness of the injectors in your Toyota Hilux 4, then at the possible reasons from which an injector noise may come.
Functions of the injectors
Injectors are a very important part of the operation of your engine unit. They were launched to the modern vehicles about 20 years ago. Before their arrival, 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 compiled 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 get the best possible combustion in the cylinders.
The different causes of a clicking or knocking noise caused by the injectors of your Toyota Hilux 4
Finding out injector noises on your Toyota Hilux 4 may originate from different origins, we will now look into the potential causes of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the several origins 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 suggest you to go through this content page about clicking noise on Toyota Hilux 4 to locate the trigger.
The explanations for injector clicking or knocking noise Toyota Hilux 4
A clicking or knocking noise from your injectors can be explained for different explanations. In fact, the injectors of your Toyota Hilux 4 have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its objective is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three characteristics is altered, 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 Hilux 4. The main trigger of these situations in most cases 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 Hilux 4, read this content page for more informations.
The side effects of injector noise on Toyota Hilux 4
Now that we have reviewed the different reasons for injector noise on your Toyota Hilux 4, we will end by stating the possible effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or broken, or your entire fuel rail is involved, you cannot escape these repercussions which can quickly become severe….
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 regular 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 quickly damage your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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>
