It is never pleasant to experience an injector noise on your Peugeot Expert. It is a noise that appears repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be linked to several types of concerns with your automobile injectors. It may not be anything major, but when a continuing noise comes out, you have to be sure. Most importantly since replacing your Peugeot Expert’s injectors can be costly. That’s why our team chose to write this content in order to support you see more clearly, learn about the different possible failures and determine your problem. To do this, we will first look at the normal function and usefulness of the injectors in your Peugeot Expert, then at the possible triggers from which an injector noise may come.injector-noise-peugeot-expert

Purposes of the injectors

Injectors are a very useful element of the operation of your engine unit. They were introduced to the modern cars 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 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 collected from the various sensors equipping the automobile (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 origins of a clicking or knocking noise caused by the injectors of your Peugeot Expert

Experiencing injector noises on your Peugeot Expert may result from different origins, we will now concentrate on the potential triggers of these. In general, the common noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be adopted to eliminate them. If you experience another clicking noise but it is not from your injectors, we advise you to examine this content about clicking noise on Peugeot Expert to locate the reason.

The explanations for injector clicking or knocking noise Peugeot Expert

A clicking or knocking noise from your injectors can be explained for different explanations. In fact, the injectors of your Peugeot Expert have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its goal is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three attributes 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 trigger thoses knocking or clicking noises on your Peugeot Expert. The main reason of these concerns generally originates 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 originates from another component of the engine of your Peugeot Expert, browse this content for more informations.

The side effects of injector noise on Peugeot Expert

Now that we have examined the different causes for injector noise on your Peugeot Expert, we will end by stating the possible consequences of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these side effects which can fairly quickly become severe….
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 severe 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 fairly quickly harm your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks connected 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>