It is hardly ever pleasant to perceive an injector noise on your Kia Sedona. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this warning sign may be linked to several types of problems with your vehicle injectors. It may not be anything major, but when a frequent noise happens, you have to be sure. Most importantly since fixing your Kia Sedona’s injectors can be expensive. That’s why our team decided to compose this content in order to help you see more clearly, learn about the different possible failures and establish your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Kia Sedona, then at the possible triggers from which an injector noise may come.injector-noise-kia-sedona

Functions of the injectors

Injectors are a very vital 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 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 precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data obtained 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 obtain the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise caused by the injectors of your Kia Sedona

Finding out injector noises on your Kia Sedona may result from different origins, we will now focus on the potential causes of these. In most cases, the common noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be implemented to prevent them. If you perceive another clicking noise but it is not from your injectors, we advise you to read this content about clicking noise on Kia Sedona to discover the cause.

The reasons for injector clicking or knocking noise Kia Sedona

A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your Kia Sedona have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its mission 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 attributes 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 as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Kia Sedona. The main cause of these concerns usually 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 in a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Kia Sedona, browse this content for more infos.

The repercussions of injector noise on Kia Sedona

Now that we have examined the different causes for injector noise on your Kia Sedona, 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 repercussions which can quickly become serious….
First, you risk destroying your exhaust unit 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 surely have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will quickly affect your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks connected 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>