It is hardly ever relaxing to acknowledge an injector noise on your Lexus CT. It is a noise that arises repeatedly, usually when you accelerate or your engine is idling. However, this indicator may be linked 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. Specifically since fixing your Lexus CT’s injectors can be costly. 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 distinguish your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Lexus CT, then at the conceivable reasons from which an injector noise may come.injector-noise-lexus-ct

Purposes of the injectors

Injectors are a very useful part of the operation of your engine. They were introduced 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 accumulated from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their objective 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 reasons of a clicking or knocking noise coming from the injectors of your Lexus CT

Hearing injector noises on your Lexus CT may come from different origins, we will now center on the potential triggers of these. Generally, 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 eliminate them. If you acknowledge another clicking noise but it is not from your injectors, we encourage you to examine this article content about clicking noise on Lexus CT to locate the reason.

The explanations for injector clicking or knocking noise Lexus CT

A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Lexus CT 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 objective of improving combustion. If one of these three characteristics is altered, the main functionality of the injectors will be disturbed 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 trigger thoses knocking or clicking noises on your Lexus CT. The main reason of these concerns commonly 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 element of the engine of your Lexus CT, check this article content for more infos.

The effects of injector noise on Lexus CT

Now that we have reviewed the several causes for injector noise on your Lexus CT, we will end by stating the possible consequences 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 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 basic consequences noticed 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 harm 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>