It is hardly ever pleasant to perceive an injector noise on your Renault Captur. It is a noise that happens repeatedly, usually when you accelerate or your engine is idling. However, this warning sign may be related to several kind of complications with your car injectors. It may not be anything severe, but when a recurrent noise comes out, you have to be sure. Specifically since repairing your Renault Captur’s injectors can be costly. That’s why our team decided to create this content page in order to help you see more clearly, learn about the different conceivable failures and identify your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Renault Captur, then at the conceivable triggers from which an injector noise may come.
Purposes of the injectors
Injectors are a very vital element of the operation of your engine motor. They were brought in to the modern vehicles about 20 years ago. Before their arrival, 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 possibility, 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 car (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 obtain the best possible combustion in the cylinders.
The different triggers of a clicking or knocking noise based on the injectors of your Renault Captur
Finding out injector noises on your Renault Captur may result from different origins, we will now concentrate on the potential triggers 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 used to eliminate them. If you perceive another clicking noise but it is not from your injectors, we suggest you to browse this content page about clicking noise on Renault Captur to find the reason.
The causes for injector clicking or knocking noise Renault Captur
A clicking or knocking noise from your injectors can be explained for different causes. Indeed, the injectors of your Renault Captur 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 at last the homogeneity of the mixture, always with the objective of improving combustion. If one of these three tasks is altered, the main role of the injectors will be disrupted 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 induce thoses knocking or clicking noises on your Renault Captur. The main reason of these trouble generally comes from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible obstruction will inevitably end up in a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Renault Captur, read this content page for more informations.
The consequences of injector noise on Renault Captur
Now that we have analyzed the different reasons for injector noise on your Renault Captur, we will end by stating the possible consequences 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 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 regular repercussions experienced by drivers is a distinctive loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will obviously 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 tips 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>
