It is never pleasant to listen an injector noise on your Chevrolet Captiva. It is a noise that happens frequently, usually when you accelerate or your engine is idling. However, this sign may be relating to multiple types of complications with your car injectors. It may not be anything major, but when a repeated noise appears, you have to be sure. Especially since fixing your Chevrolet Captiva’s injectors can be costly. That’s why our team decided to create this article content in order to help you see more clearly, learn about the different possible failures and distinguish your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Chevrolet Captiva, then at the possible causes from which an injector noise may come.
Benefits of the injectors
Injectors are a very important component of the operation of your engine unit. They were introduced to the modern cars about 20 years ago. Before their arrival, 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data compiled from the various sensors equipping the car (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 get the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise caused by the injectors of your Chevrolet Captiva
Discovering injector noises on your Chevrolet Captiva may originate from different origins, we will now center on the potential triggers of these. In general, 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 prevent them. If you listen another clicking noise but it is not from your injectors, we encourage you to examine this article content about clicking noise on Chevrolet Captiva to find the reason.
The explanations for injector clicking or knocking noise Chevrolet Captiva
A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Chevrolet Captiva have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its goal is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is altered, 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 Chevrolet Captiva. The main reason of these situations commonly comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably cause a malfunction of the injector. If after verifying, this noise comes from another component of the engine of your Chevrolet Captiva, read this article content for more informations.
The end result of injector noise on Chevrolet Captiva
Now that we have analyzed the several causes for injector noise on your Chevrolet Captiva, we will end by stating the possible end result 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 consequences which can promptly 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 repercussions noticed by drivers is a distinctive 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 promptly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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>
