It is never pleasant to acknowledge an injector noise on your Lexus ES. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this indicator may be related to multiple types of concerns with your automobile injectors. It may not be anything major, but when a repeated noise happens, you have to be sure. Most importantly since fixing your Lexus ES’s injectors can be expensive. That’s why our team decided to create this content in order to support you see more clearly, learn about the different possible failures and determine your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Lexus ES, then at the possible causes from which an injector noise may come.
Attributes of the injectors
Injectors are a very vital part of the operation of your engine unit. They were released to the modern automobiles 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 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 automobile (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 reasons of a clicking or knocking noise coming from the injectors of your Lexus ES
Hearing injector noises on your Lexus ES may come 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 put into practice to prevent them. If you acknowledge another clicking noise but it is not from your injectors, we suggest you to examine this content about clicking noise on Lexus ES to locate the reason.
The reasons for injector clicking or knocking noise Lexus ES
A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Lexus ES 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 mission 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 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 Lexus ES. The main reason of these trouble generally comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably end up in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Lexus ES, have a look at this content for more informations.
The side effects of injector noise on Lexus ES
Now that we have examined the several reasons for injector noise on your Lexus ES, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can almost instantly 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 common consequences felt by drivers is a significant loss of power. In fact, 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 almost instantly affect your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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>
