It is never enjoyable to acknowledge an injector noise on your Opel Agila. It is a noise that happens regularly, usually when you accelerate or your engine is idling. However, this sign may be connected to multiple sort of complications with your car injectors. It may not be anything major, but when a repeated noise shows up, you have to be sure. Especially since replacing your Opel Agila’s injectors can be expensive. That’s why our team chose to create this article in order to support you see more clearly, learn about the different conceivable failures and identify your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Opel Agila, then at the conceivable triggers from which an injector noise may come.injector-noise-opel-agila

Benefits of the injectors

Injectors are a very fundamental part of the operation of your engine. 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data received 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 triggers of a clicking or knocking noise coming from the injectors of your Opel Agila

Experiencing injector noises on your Opel Agila may result from different locations, we will now center on the potential triggers of these. Generally, the typical 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 acknowledge another clicking noise but it is not from your injectors, we recommend you to read this article about clicking noise on Opel Agila to discover the reason.

The reasons for injector clicking or knocking noise Opel Agila

A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Opel Agila 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 mission is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three features is altered, 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 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 Opel Agila. The main reason of these situations in most cases comes 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 checking, this noise comes from another part of the engine of your Opel Agila, check this article for more informations.

The side effects of injector noise on Opel Agila

Now that we have analyzed the several causes for injector noise on your Opel Agila, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or broken, or your entire fuel rail is involved, you cannot escape these side effects which can 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 known consequences felt by drivers is a serious loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will inevitably have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will quickly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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>