It is rarely ever pleasurable to acknowledge an injector noise on your Peugeot 108. It is a noise that appears frequently, usually when you accelerate or your engine is idling. However, this symptom may be related to multiple sort of problems with your vehicle injectors. It may not be anything major, but when a continuing noise appears, you have to be sure. Especially since replacing your Peugeot 108’s injectors can be costly. 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 identify your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Peugeot 108, then at the possible causes from which an injector noise may come.injector-noise-peugeot-108

Attributes of the injectors

Injectors are a very important part of the operation of your engine unit. They were released to the modern automobiles about 20 years ago. Before their appearance, 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 precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data compiled from the various sensors equipping the vehicle (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 obtain the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise coming from the injectors of your Peugeot 108

Discovering injector noises on your Peugeot 108 may come from different locations, we will now concentrate on the potential causes of these. Generally, 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 implemented to get rid of them. If you acknowledge another clicking noise but it is not from your injectors, we advise you to go through this article about clicking noise on Peugeot 108 to discover the trigger.

The causes for injector clicking or knocking noise Peugeot 108

A clicking or knocking noise from your injectors can be justified by different causes. In fact, the injectors of your Peugeot 108 have three main missions, 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 control 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 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 as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Peugeot 108. The main trigger of these problems generally comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably end up in a malfunction of the injector. If after checking, this noise comes from another part of the engine of your Peugeot 108, have a look at this article for more informations.

The effects of injector noise on Peugeot 108

Now that we have analyzed the diverse causes for injector noise on your Peugeot 108, we will end by stating the possible consequences 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 almost instantly 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 regular consequences noticed 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 deteriorating one of your pistons or your engine. Poor combustion will almost instantly affect 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 swapping your diesel fuel filter regularly>