It is hardly ever pleasant to hear an injector noise on your Peugeot 406. It is a noise that arises repeatedly, usually when you accelerate or your engine is idling. However, this symptom may be linked to several sort of complications with your vehicle injectors. It may not be anything major, but when a continuing noise appears, you have to be sure. Specifically since repairing your Peugeot 406’s injectors can be costly. That’s why our team decided to prepare this content in order to support you see more clearly, learn about the different plausible failures and distinguish your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Peugeot 406, then at the plausible reasons from which an injector noise may come.
Purposes of the injectors
Injectors are a very significant component of the operation of your engine unit. They were launched to the modern cars 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 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 get the best possible combustion in the cylinders.
The different triggers of a clicking or knocking noise based on the injectors of your Peugeot 406
Listening injector noises on your Peugeot 406 may originate from different origins, we will now concentrate on the potential causes of these. In general, the common noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be used to stop them. If you hear another clicking noise but it is not from your injectors, we suggest you to read this content about clicking noise on Peugeot 406 to locate the cause.
The reasons for injector clicking or knocking noise Peugeot 406
A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your Peugeot 406 have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the target 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 due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Peugeot 406. The main cause of these problems usually comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably lead to a malfunction of the injector. If after verifying, this noise comes from another component of the engine of your Peugeot 406, browse this content for more informations.
The effects of injector noise on Peugeot 406
Now that we have reviewed the several reasons for injector noise on your Peugeot 406, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these side effects which can almost instantly become severe….
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 common effects experienced by drivers is a noticeable loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will almost instantly damage your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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>
