It is hardly ever pleasant to acknowledge an injector noise on your Citroen Jumper 2. It is a noise that appears regularly, usually when you accelerate or your engine is idling. However, this symptom may be linked to several kind of concerns with your car injectors. It may not be anything serious, but when a continuing noise comes out, you have to be sure. Especially since replacing your Citroen Jumper 2’s injectors can be costly. That’s why our team chose to create this content in order to support you see more clearly, learn about the different possible failures and determine your issue. To do this, we will first look at the normal function and usefulness of the injectors in your Citroen Jumper 2, then at the possible causes from which an injector noise may come.injector-noise-citroen-jumper-2

Purposes of the injectors

Injectors are a very vital element of the operation of your engine motor. They were released to the modern automobiles about 20 years ago. Before their introduction, 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 precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data obtained from the various sensors equipping the car (engine temperature, acceleration level, engine speed, etc.). Their goal 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 Citroen Jumper 2

Finding out injector noises on your Citroen Jumper 2 may come from different locations, we will now center on the potential triggers of these. Generally, the common noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be implemented to prevent them. If you acknowledge another clicking noise but it is not from your injectors, we encourage you to read this content about clicking noise on Citroen Jumper 2 to discover the reason.

The reasons for injector clicking or knocking noise Citroen Jumper 2

A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Citroen Jumper 2 have three main tasks, to manage the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its goal is to deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the objective 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 trigger thoses knocking or clicking noises on your Citroen Jumper 2. The main reason of these trouble in most cases originates from a particle that gets into the injectors. The accuracy 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 element of the engine of your Citroen Jumper 2, have a look at this content for more informations.

The effects of injector noise on Citroen Jumper 2

Now that we have reviewed the several causes for injector noise on your Citroen Jumper 2, we will end by stating the possible side effects 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 consequences which can almost instantly become major….
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 known effects noticed 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 surely have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will almost instantly harm 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>