It is hardly ever pleasant to perceive an injector noise on your seat leon. It is a noise that happens regularly, usually when you accelerate or your engine is idling. However, this warning sign may be linked to multiple sort of problems with your vehicle injectors. It may not be anything severe, but when a continuing noise shows up, you have to be sure. Especially since fixing your seat leon’s injectors can be expensive. That’s why our team decided to prepare this article in order to help you see more clearly, learn about the different conceivable failures and establish your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your seat leon, then at the conceivable causes from which an injector noise may come.injector-noise-seat-leon

Purposes of the injectors

Injectors are a very useful part of the operation of your engine unit. They were released to the modern automobiles about 20 years ago. Before their arrival, 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data obtained from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their objective 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 causes of a clicking or knocking noise coming from the injectors of your seat leon

Finding out injector noises on your seat leon may result from different origins, we will now look into the potential triggers of these. In general, 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 implemented to stop them. If you perceive another clicking noise but it is not from your injectors, we recommend you to browse this article about clicking noise on seat leon to locate the cause.

The reasons for injector clicking or knocking noise seat leon

A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your seat leon 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 mission is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the goal of improving combustion. If one of these three tasks is modified, the main purpose of the injectors will be disturbed 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 provoke thoses knocking or clicking noises on your seat leon. The main cause of these trouble 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 component of the engine of your seat leon, check this article for more infos.

The side effects of injector noise on seat leon

Now that we have reviewed the different reasons for injector noise on your seat leon, 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 consequences which can fairly quickly 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 basic effects experienced by drivers is a serious 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 deteriorating 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 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 swapping your diesel fuel filter regularly>