It is hardly ever pleasurable to hear an injector noise on your Chevrolet Spark. It is a noise that arises frequently, usually when you accelerate or your engine is idling. However, this warning sign may be linked to several kind of concerns with your automobile injectors. It may not be anything serious, but when a continuing noise appears, you have to be sure. Especially since repairing your Chevrolet Spark’s injectors can be expensive. That’s why our team decided to create this content in order to help you see more clearly, learn about the different plausible failures and identify your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Chevrolet Spark, then at the plausible triggers from which an injector noise may come.injector-noise-chevrolet-spark

Benefits of the injectors

Injectors are a very significant component of the operation of your engine unit. They were introduced 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 compiled from the various sensors equipping the automobile (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 obtain the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise based on the injectors of your Chevrolet Spark

Finding out injector noises on your Chevrolet Spark may result from different sources, we will now focus 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 adopted to stop them. If you hear another clicking noise but it is not from your injectors, we recommend you to browse this content about clicking noise on Chevrolet Spark to discover the trigger.

The causes for injector clicking or knocking noise Chevrolet Spark

A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Chevrolet Spark have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three tasks is modified, the main role of the injectors will be disrupted 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 Chevrolet Spark. The main trigger of these problems in most cases originates from a particle that gets into the injectors. The precision 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 part of the engine of your Chevrolet Spark, read this content for more infos.

The effects of injector noise on Chevrolet Spark

Now that we have analyzed the diverse causes for injector noise on your Chevrolet Spark, 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 consequences which can promptly become severe….
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 experienced by drivers is a significant loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will undoubtedly have a loss of power
Finally, you risk deteriorating 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 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>