It is never pleasant to listen to an injector noise on your Peugeot 806. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this indicator may be relating to multiple sort of concerns with your automobile injectors. It may not be anything serious, but when a continuing noise appears, you have to be sure. Most importantly since repairing your Peugeot 806’s injectors can be expensive. That’s why our team decided to produce this article content in order to help you see more clearly, learn about the different possible failures and identify your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Peugeot 806, then at the possible reasons from which an injector noise may come.injector-noise-peugeot-806

Benefits of the injectors

Injectors are a very fundamental component of the operation of your engine motor. They were introduced 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 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 automobile (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 obtain the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise coming from the injectors of your Peugeot 806

Discovering injector noises on your Peugeot 806 may come from different sources, we will now concentrate on the potential causes of these. Generally, 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 used to prevent them. If you listen to another clicking noise but it is not from your injectors, we recommend you to go through this article content about clicking noise on Peugeot 806 to discover the cause.

The explanations for injector clicking or knocking noise Peugeot 806

A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Peugeot 806 have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its mission is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three tasks is altered, the main functionality 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 induce thoses knocking or clicking noises on your Peugeot 806. The main cause of these concerns commonly comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably end in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Peugeot 806, check this article content for more informations.

The consequences of injector noise on Peugeot 806

Now that we have examined the several causes for injector noise on your Peugeot 806, 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 considerable….
First, you risk destroying your exhaust unit 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 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 obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will fairly quickly affect your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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>