It is rarely ever pleasant to acknowledge an injector noise on your Ford Fiesta 4. It is a noise that arises repeatedly, usually when you accelerate or your engine is idling. However, this indicator may be linked to several kind of problems with your car injectors. It may not be anything severe, but when a repeated noise appears, you have to be sure. Especially since replacing your Ford Fiesta 4’s injectors can be expensive. That’s why our team chose to write 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 running and usefulness of the injectors in your Ford Fiesta 4, then at the conceivable causes from which an injector noise may come.
Purposes of the injectors
Injectors are a very fundamental element of the operation of your engine motor. They were released to the modern cars 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 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 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 get the best possible combustion in the cylinders.
The different origins of a clicking or knocking noise caused by the injectors of your Ford Fiesta 4
Finding out injector noises on your Ford Fiesta 4 may come from different locations, we will now center on the potential causes of these. In general, the typical noise of a faulty injector is of the snap type. Here are the several sources of these noises and the solutions to be adopted to prevent them. If you acknowledge another clicking noise but it is not from your injectors, we advise you to read this content page about clicking noise on Ford Fiesta 4 to find the cause.
The explanations for injector clicking or knocking noise Ford Fiesta 4
A clicking or knocking noise from your injectors can be justified by different explanations. In fact, the injectors of your Ford Fiesta 4 have three main missions, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to facilitate its combustion. Then, its objective is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three attributes is altered, 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 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 Ford Fiesta 4. The main cause of these trouble commonly comes from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end in a malfunction of the injector. If after checking, this noise comes from another part of the engine of your Ford Fiesta 4, read this content page for more informations.
The end result of injector noise on Ford Fiesta 4
Now that we have reviewed the different reasons for injector noise on your Ford Fiesta 4, 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 consequences which can promptly 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 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 obviously have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will promptly harm your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks connected 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>
