It is never pleasant to listen an injector noise on your Hyundai Santa Fe. It is a noise that appears regularly, usually when you accelerate or your engine is idling. However, this indication may be connected to several sort of trouble with your vehicle injectors. It may not be anything serious, but when a repeated noise comes out, you have to be sure. Specifically since replacing your Hyundai Santa Fe’s injectors can be expensive. That’s why our team decided to produce this content page in order to help you see more clearly, learn about the different possible failures and determine your trouble. To do this, we will first look at the normal functioning and usefulness of the injectors in your Hyundai Santa Fe, then at the possible reasons from which an injector noise may come.injector-noise-hyundai-santa-fe

Purposes of the injectors

Injectors are a very vital element of the operation of your engine. They were introduced to the modern cars about 20 years ago. Before their introduction, 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 compiled from the various sensors equipping the vehicle (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 get the best possible combustion in the cylinders.

The different triggers of a clicking or knocking noise coming from the injectors of your Hyundai Santa Fe

Listening injector noises on your Hyundai Santa Fe may result from different origins, we will now concentrate on the potential causes of these. In most cases, the regular noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be implemented to prevent them. If you listen another clicking noise but it is not from your injectors, we advise you to go through this content page about clicking noise on Hyundai Santa Fe to discover the trigger.

The causes for injector clicking or knocking noise Hyundai Santa Fe

A clicking or knocking noise from your injectors can be justified by different causes. Indeed, the injectors of your Hyundai Santa Fe have three main tasks, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to ease its combustion. Then, its objective is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the aim of improving combustion. If one of these three features 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 because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Hyundai Santa Fe. The main trigger 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 in a malfunction of the injector. If after verifying, this noise comes from another component of the engine of your Hyundai Santa Fe, check this content page for more infos.

The consequences of injector noise on Hyundai Santa Fe

Now that we have analyzed the diverse causes for injector noise on your Hyundai Santa Fe, 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 critical….
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 common consequences felt by drivers is a severe 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 deteriorating one of your pistons or your engine. Poor combustion will quickly damage your cylinders or pistons and your engine may tighten.
Here are three little tips 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 changing your diesel fuel filter regularly>