It is rarely ever pleasant to acknowledge an injector noise on your Ford Expedition. It is a noise that comes up repeatedly, usually when you accelerate or your engine is idling. However, this sign may be relating to several types of trouble with your car injectors. It may not be anything severe, but when a recurrent noise happens, you have to be sure. Specifically since repairing your Ford Expedition’s injectors can be expensive. That’s why our team chose to produce this content page in order to help you see more clearly, learn about the different conceivable failures and distinguish your trouble. To do this, we will first look at the normal running and usefulness of the injectors in your Ford Expedition, then at the conceivable reasons from which an injector noise may come.injector-noise-ford-expedition

Benefits of the injectors

Injectors are a very vital component of the operation of your engine motor. They were introduced to the modern automobiles about 20 years ago. Before their introduction, 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 possibility, 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 collected from the various sensors equipping the car (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 reasons of a clicking or knocking noise caused by the injectors of your Ford Expedition

Listening injector noises on your Ford Expedition may result from different sources, we will now center on the potential causes 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 put into practice to eliminate them. If you acknowledge another clicking noise but it is not from your injectors, we recommend you to browse this content page about clicking noise on Ford Expedition to discover the reason.

The causes for injector clicking or knocking noise Ford Expedition

A clicking or knocking noise from your injectors can be justified by different causes. Indeed, the injectors of your Ford Expedition have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to deal with the air/fuel dosage and at last 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your Ford Expedition. The main reason of these situations 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 end in a malfunction of the injector. If after checking, this noise comes from another component of the engine of your Ford Expedition, read this content page for more informations.

The end result of injector noise on Ford Expedition

Now that we have examined the diverse causes for injector noise on your Ford Expedition, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is clogged, or broken, or your entire fuel rail is involved, you cannot escape these consequences which can fairly quickly become major….
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 common consequences 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 undoubtedly have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will fairly quickly damage your cylinders or pistons and your engine may tighten.
Here are three little suggestions 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>