It is hardly ever pleasant to hear an injector noise on your Kia Cee D. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this indicator may be linked to multiple kind of problems with your vehicle injectors. It may not be anything serious, but when a recurrent noise appears, you have to be sure. Specifically since repairing your Kia Cee D’s injectors can be costly. That’s why our team decided to compose this article 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 functioning and usefulness of the injectors in your Kia Cee D, then at the possible triggers from which an injector noise may come.injector-noise-kia-cee-d

Purposes of the injectors

Injectors are a very fundamental part of the operation of your engine. They were launched to the modern automobiles about 20 years ago. Before their arrival, 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 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 caused by the injectors of your Kia Cee D

Hearing injector noises on your Kia Cee D may result from different origins, we will now look into the potential triggers of these. In general, the typical noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be adopted to eliminate them. If you hear another clicking noise but it is not from your injectors, we suggest you to browse this article about clicking noise on Kia Cee D to find the cause.

The causes for injector clicking or knocking noise Kia Cee D

A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Kia Cee D have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its task is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the objective of improving combustion. If one of these three tasks is modified, the main functionality of the injectors will be disrupted 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 provoke thoses knocking or clicking noises on your Kia Cee D. The main cause of these situations in most cases 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 component of the engine of your Kia Cee D, have a look at this article for more informations.

The repercussions of injector noise on Kia Cee D

Now that we have examined the different reasons for injector noise on your Kia Cee D, we will end by stating the possible end result 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 side effects which can almost instantly become serious….
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 repercussions experienced by drivers is a distinctive loss of power. Indeed, 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 almost instantly harm your cylinders or pistons and your engine may tighten.
Here are three little tips 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 swapping your diesel fuel filter regularly>