It is never enjoyable to listen an injector noise on your Chevrolet Cobalt. It is a noise that comes up frequently, usually when you accelerate or your engine is idling. However, this indicator may be linked to several sort of concerns with your automobile injectors. It may not be anything serious, but when a recurrent noise appears, you have to be sure. Most importantly since replacing your Chevrolet Cobalt’s injectors can be costly. That’s why our team chose to compose this content page in order to help you see more clearly, learn about the different plausible failures and establish your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Chevrolet Cobalt, then at the plausible reasons from which an injector noise may come.
Benefits of the injectors
Injectors are a very vital part of the operation of your engine unit. They were released to the modern vehicles 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 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 accumulated from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their aim 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 based on the injectors of your Chevrolet Cobalt
Listening injector noises on your Chevrolet Cobalt may come from different sources, we will now concentrate on the potential causes of these. Generally, 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 applied to stop them. If you listen another clicking noise but it is not from your injectors, we recommend you to read this content page about clicking noise on Chevrolet Cobalt to discover the trigger.
The explanations for injector clicking or knocking noise Chevrolet Cobalt
A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Chevrolet Cobalt have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its goal is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three functions 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 because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Chevrolet Cobalt. The main trigger of these situations usually comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably lead to a malfunction of the injector. If after checking, this noise comes from another part of the engine of your Chevrolet Cobalt, have a look at this content page for more informations.
The repercussions of injector noise on Chevrolet Cobalt
Now that we have examined the diverse reasons for injector noise on your Chevrolet Cobalt, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is clogged, or broken, or your entire fuel rail is involved, you cannot escape these repercussions which can promptly 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 known repercussions 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 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 associated 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 changing your diesel fuel filter regularly>
