It is rarely ever relaxing to listen to an injector noise on your Chevrolet Impala. It is a noise that appears repeatedly, usually when you accelerate or your engine is idling. However, this indication may be linked to several types of concerns with your automobile injectors. It may not be anything major, but when a repeated noise arises, you have to be sure. Most importantly since repairing your Chevrolet Impala’s injectors can be expensive. That’s why our team chose to compose this article in order to support you see more clearly, learn about the different possible failures and determine your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Chevrolet Impala, then at the possible reasons from which an injector noise may come.injector-noise-chevrolet-impala

Functions of the injectors

Injectors are a very fundamental part of the operation of your engine motor. They were released to the modern vehicles 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data obtained 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 reasons of a clicking or knocking noise coming from the injectors of your Chevrolet Impala

Experiencing injector noises on your Chevrolet Impala may result from different locations, we will now focus on the potential triggers of these. In most cases, the common noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be implemented to get rid of them. If you listen to another clicking noise but it is not from your injectors, we advise you to browse this article about clicking noise on Chevrolet Impala to locate the cause.

The reasons for injector clicking or knocking noise Chevrolet Impala

A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Chevrolet Impala have three main missions, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its mission is to control the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three tasks is modified, the main purpose of the injectors will be disturbed 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 Impala. The main cause of these situations 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 result in a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Chevrolet Impala, browse this article for more informations.

The repercussions of injector noise on Chevrolet Impala

Now that we have examined the different reasons for injector noise on your Chevrolet Impala, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is blocked, or damaged, or your entire fuel rail is involved, you cannot escape these effects which can fairly quickly 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 common effects felt 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 degrading one of your pistons or your engine. Poor combustion will fairly quickly damage your cylinders or pistons and your engine may tighten.
Here are three little tips to limit the risks linked 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 changing your diesel fuel filter regularly>