It is rarely ever enjoyable to listen an injector noise on your Renault Kangoo. It is a noise that appears continually, usually when you accelerate or your engine is idling. However, this warning sign may be linked to several sort of problems with your car injectors. It may not be anything severe, but when a continuing noise comes out, you have to be sure. Especially since replacing your Renault Kangoo’s injectors can be expensive. That’s why our team chose to write this content page in order to support you see more clearly, learn about the different plausible failures and determine your trouble. To do this, we will first look at the normal running and usefulness of the injectors in your Renault Kangoo, then at the plausible triggers from which an injector noise may come.injector-noise-renault-kangoo

Attributes of the injectors

Injectors are a very vital component of the operation of your engine unit. They were introduced to the modern automobiles 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 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 received 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 causes of a clicking or knocking noise based on the injectors of your Renault Kangoo

Discovering injector noises on your Renault Kangoo may result from different origins, we will now concentrate on the potential causes of these. In general, the typical noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be applied to prevent them. If you listen another clicking noise but it is not from your injectors, we recommend you to browse this content page about clicking noise on Renault Kangoo to find the cause.

The causes for injector clicking or knocking noise Renault Kangoo

A clicking or knocking noise from your injectors can be explained for different causes. In fact, the injectors of your Renault Kangoo have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its mission is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three attributes is modified, the main role of the injectors will be disturbed and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Renault Kangoo. The main cause 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 blockage will inevitably end in a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Renault Kangoo, have a look at this content page for more informations.

The end result of injector noise on Renault Kangoo

Now that we have analyzed the diverse reasons for injector noise on your Renault Kangoo, we will end by stating the possible end result 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 effects which can quickly become serious….
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 known repercussions experienced 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 obviously have a loss of power
Finally, you risk degrading 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 tips 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 changing your diesel fuel filter regularly>