It is rarely ever enjoyable to experience an injector noise on your Lexus IS. It is a noise that appears regularly, usually when you accelerate or your engine is idling. However, this sign may be related to multiple sort of problems with your vehicle injectors. It may not be anything major, but when a repeated noise comes out, you have to be sure. Most importantly since repairing your Lexus IS’s injectors can be costly. That’s why our team chose to write this article content in order to support you see more clearly, learn about the different possible failures and identify your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Lexus IS, then at the possible triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very useful part of the operation of your engine unit. They were brought in 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 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 compiled from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their goal 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 triggers of a clicking or knocking noise based on the injectors of your Lexus IS
Discovering injector noises on your Lexus IS may originate from different sources, 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 different sources of these noises and the solutions to be put into practice to get rid of them. If you experience another clicking noise but it is not from your injectors, we suggest you to browse this article content about clicking noise on Lexus IS to discover the cause.
The causes for injector clicking or knocking noise Lexus IS
A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Lexus IS have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its goal is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three features is modified, the main role 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 IS. The main cause of these trouble commonly originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably produce a malfunction of the injector. If after verifying, this noise originates from another element of the engine of your Lexus IS, read this article content for more infos.
The repercussions of injector noise on Lexus IS
Now that we have examined the diverse reasons for injector noise on your Lexus IS, we will end by stating the possible consequences 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 effects which can fairly 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 known effects experienced by drivers is a noticeable loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will inevitably 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 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 changing your diesel fuel filter regularly>
