It is rarely ever enjoyable to notice an injector noise on your Toyota RAV4. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this sign may be connected to different sort of trouble with your vehicle injectors. It may not be anything major, but when a repeated noise comes out, you have to be sure. Specifically since replacing your Toyota RAV4’s injectors can be expensive. That’s why our team chose to prepare this article content in order to support you see more clearly, learn about the different possible failures and identify your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Toyota RAV4, then at the possible causes from which an injector noise may come.injector-noise-toyota-rav4

Purposes of the injectors

Injectors are a very important component of the operation of your engine motor. They were released to the modern cars 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 possibility, 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 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 causes of a clicking or knocking noise based on the injectors of your Toyota RAV4

Hearing injector noises on your Toyota RAV4 may originate from different origins, we will now focus on the potential triggers of these. In most cases, the regular noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be used to prevent them. If you notice another clicking noise but it is not from your injectors, we suggest you to go through this article content about clicking noise on Toyota RAV4 to locate the trigger.

The explanations for injector clicking or knocking noise Toyota RAV4

A clicking or knocking noise from your injectors can be explained for different explanations. In fact, the injectors of your Toyota RAV4 have three main missions, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the objective of improving combustion. If one of these three attributes 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Toyota RAV4. The main trigger of these problems commonly 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 RAV4, check this article content for more informations.

The end result of injector noise on Toyota RAV4

Now that we have analyzed the diverse causes for injector noise on your Toyota RAV4, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is blocked, or broken, or your entire fuel rail is involved, you cannot escape these effects which can promptly become critical….
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 consequences 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 obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will promptly harm your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks relating to 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>