It is never pleasurable to listen an injector noise on your Mercedes Sprinter 2. 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 trouble with your automobile injectors. It may not be anything major, but when a persistent noise shows up, you have to be sure. Most importantly since fixing your Mercedes Sprinter 2’s injectors can be costly. That’s why our team decided to compose this article in order to support you see more clearly, learn about the different possible failures and establish your issue. To do this, we will first look at the normal running and usefulness of the injectors in your Mercedes Sprinter 2, then at the possible triggers from which an injector noise may come.injector-noise-mercedes-sprinter-2

Benefits of the injectors

Injectors are a very important component of the operation of your engine motor. They were launched 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 collected from the various sensors equipping the automobile (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 caused by the injectors of your Mercedes Sprinter 2

Hearing injector noises on your Mercedes Sprinter 2 may result from different locations, we will now look into the potential triggers of these. In most cases, the typical noise of a faulty injector is of the snap type. Here are the different origins of these noises and the solutions to be put into practice to prevent them. If you listen another clicking noise but it is not from your injectors, we encourage you to examine this article about clicking noise on Mercedes Sprinter 2 to locate the trigger.

The explanations for injector clicking or knocking noise Mercedes Sprinter 2

A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Mercedes Sprinter 2 have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its mission is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the target of improving combustion. If one of these three attributes is altered, 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Mercedes Sprinter 2. The main trigger of these concerns generally originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably produce a malfunction of the injector. If after verifying, this noise originates from another component of the engine of your Mercedes Sprinter 2, have a look at this article for more informations.

The effects of injector noise on Mercedes Sprinter 2

Now that we have reviewed the several reasons for injector noise on your Mercedes Sprinter 2, we will end by stating the possible consequences 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 quickly become critical….
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 repercussions felt by drivers is a distinctive 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 quickly affect your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks linked 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 changing your diesel fuel filter regularly>