It is rarely ever pleasant to perceive an injector noise on your Suzuki Sx4. It is a noise that happens frequently, usually when you accelerate or your engine is idling. However, this warning sign may be linked to several sort of problems with your vehicle injectors. It may not be anything serious, but when a persistent noise arises, you have to be sure. Most importantly since fixing your Suzuki Sx4’s injectors can be expensive. That’s why our team decided to prepare this article content in order to support you see more clearly, learn about the different plausible failures and identify your trouble. To do this, we will first look at the normal functioning and usefulness of the injectors in your Suzuki Sx4, then at the plausible causes from which an injector noise may come.injector-noise-suzuki-sx4

Purposes of the injectors

Injectors are a very useful element of the operation of your engine. They were launched 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 ability, 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 received 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 get the best possible combustion in the cylinders.

The different origins of a clicking or knocking noise caused by the injectors of your Suzuki Sx4

Hearing injector noises on your Suzuki Sx4 may originate from different sources, we will now look into the potential triggers of these. Generally, 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 used to get rid of them. If you perceive another clicking noise but it is not from your injectors, we recommend you to read this article content about clicking noise on Suzuki Sx4 to discover the trigger.

The reasons for injector clicking or knocking noise Suzuki Sx4

A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Suzuki Sx4 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 mission is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics 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 as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Suzuki Sx4. The main trigger of these concerns generally originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably lead to a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Suzuki Sx4, have a look at this article content for more infos.

The consequences of injector noise on Suzuki Sx4

Now that we have analyzed the different causes for injector noise on your Suzuki Sx4, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can quickly become considerable….
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 felt by drivers is a noticeable 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 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 suggestions 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 swapping your diesel fuel filter regularly>