It is rarely ever pleasant to listen an injector noise on your Jeep Cherokee. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this warning sign may be linked to multiple sort of concerns with your vehicle injectors. It may not be anything major, but when a frequent noise appears, you have to be sure. Specifically since fixing your Jeep Cherokee’s injectors can be expensive. That’s why our team chose to write this content in order to help you see more clearly, learn about the different possible failures and identify your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Jeep Cherokee, then at the possible triggers from which an injector noise may come.injector-noise-jeep-cherokee

Attributes of the injectors

Injectors are a very significant part of the operation of your engine unit. They were introduced to the modern cars 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 ability, 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 received from the various sensors equipping the vehicle (engine temperature, acceleration level, engine speed, etc.). Their purpose 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 Jeep Cherokee

Discovering injector noises on your Jeep Cherokee may come from different locations, we will now center on the potential triggers of these. Generally, the regular noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be implemented to get rid of them. If you listen another clicking noise but it is not from your injectors, we recommend you to read this content about clicking noise on Jeep Cherokee to locate the cause.

The explanations for injector clicking or knocking noise Jeep Cherokee

A clicking or knocking noise from your injectors can be explained for different explanations. Indeed, the injectors of your Jeep Cherokee have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the objective of improving combustion. If one of these three functions 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Jeep Cherokee. The main cause of these concerns in most cases originates from a particle that gets into the injectors. The accuracy 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 element of the engine of your Jeep Cherokee, read this content for more infos.

The consequences of injector noise on Jeep Cherokee

Now that we have examined the several reasons for injector noise on your Jeep Cherokee, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or broken, or your entire fuel rail is involved, you cannot escape these effects which can quickly become considerable….
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 felt by drivers is a noticeable loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will inevitably 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 recommendations to limit the risks relating 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 swapping your diesel fuel filter regularly>