It is never relaxing to acknowledge an injector noise on your Opel Mokka. It is a noise that comes up repeatedly, usually when you accelerate or your engine is idling. However, this sign may be relating to different types of complications with your car injectors. It may not be anything severe, but when a frequent noise appears, you have to be sure. Especially since replacing your Opel Mokka’s injectors can be expensive. That’s why our team chose to create this article content in order to support you see more clearly, learn about the different possible failures and identify your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Opel Mokka, then at the possible causes from which an injector noise may come.injector-noise-opel-mokka

Purposes of the injectors

Injectors are a very useful part of the operation of your engine motor. They were launched to the modern vehicles about 20 years ago. Before their appearance, 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 collected from the various sensors equipping the car (engine temperature, acceleration level, engine speed, etc.). Their purpose 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 causes of a clicking or knocking noise caused by the injectors of your Opel Mokka

Experiencing injector noises on your Opel Mokka may originate from different sources, we will now focus on the potential causes of these. In most cases, the usual noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be used to prevent them. If you acknowledge another clicking noise but it is not from your injectors, we advise you to read this article content about clicking noise on Opel Mokka to discover the cause.

The explanations for injector clicking or knocking noise Opel Mokka

A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Opel Mokka have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the objective of improving combustion. If one of these three features is altered, 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Opel Mokka. The main cause of these problems commonly originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after checking, this noise originates from another part of the engine of your Opel Mokka, check this article content for more infos.

The effects of injector noise on Opel Mokka

Now that we have analyzed the different reasons for injector noise on your Opel Mokka, 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 consequences 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 basic 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 obviously have a loss of power
Finally, you risk deteriorating 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 recommendations 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 changing your diesel fuel filter regularly>