It is rarely ever pleasurable to experience an injector noise on your Land Rover Defender. It is a noise that happens continually, usually when you accelerate or your engine is idling. However, this warning sign may be connected to different types of problems with your automobile injectors. It may not be anything severe, but when a persistent noise shows up, you have to be sure. Most importantly since replacing your Land Rover Defender’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 possible failures and distinguish your trouble. To do this, we will first look at the normal function and usefulness of the injectors in your Land Rover Defender, then at the possible reasons from which an injector noise may come.injector-noise-land-rover-defender

Benefits of the injectors

Injectors are a very important element of the operation of your engine. They were brought in 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 accumulated 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 reasons of a clicking or knocking noise coming from the injectors of your Land Rover Defender

Listening injector noises on your Land Rover Defender may result from different locations, we will now look into the potential triggers of these. In most cases, the usual 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 eliminate them. If you experience another clicking noise but it is not from your injectors, we suggest you to go through this content page about clicking noise on Land Rover Defender to find the reason.

The explanations for injector clicking or knocking noise Land Rover Defender

A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Land Rover Defender 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 deal with the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three characteristics is modified, the main functionality of the injectors will be disturbed 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 Land Rover Defender. The main reason of these problems usually comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible obstruction will inevitably result in a malfunction of the injector. If after verifying, this noise comes from another part of the engine of your Land Rover Defender, browse this content page for more informations.

The repercussions of injector noise on Land Rover Defender

Now that we have examined the different causes for injector noise on your Land Rover Defender, we will end by stating the possible 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 effects which can promptly become serious….
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 regular consequences felt by drivers is a noticeable 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 promptly damage your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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 changing your diesel fuel filter regularly>