It is never pleasant to perceive an injector noise on your Mazda CX 7. It is a noise that arises repeatedly, usually when you accelerate or your engine is idling. However, this indicator may be relating to several types of problems with your car injectors. It may not be anything severe, but when a repeated noise shows up, you have to be sure. Most importantly since replacing your Mazda CX 7’s injectors can be expensive. That’s why our team decided to compose this content page in order to support you see more clearly, learn about the different plausible failures and distinguish your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Mazda CX 7, then at the plausible triggers from which an injector noise may come.
Purposes of the injectors
Injectors are a very vital part 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 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 accumulated 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 obtain the best possible combustion in the cylinders.
The different origins of a clicking or knocking noise caused by the injectors of your Mazda CX 7
Listening injector noises on your Mazda CX 7 may originate from different origins, we will now concentrate on the potential triggers of these. Generally, the usual noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be applied to eliminate them. If you perceive another clicking noise but it is not from your injectors, we recommend you to go through this content page about clicking noise on Mazda CX 7 to find the reason.
The reasons for injector clicking or knocking noise Mazda CX 7
A clicking or knocking noise from your injectors can be explained for different reasons. Indeed, the injectors of your Mazda CX 7 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 objective is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three attributes is altered, the main functionality of the injectors will be disrupted 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 induce thoses knocking or clicking noises on your Mazda CX 7. The main reason of these situations commonly originates from a particle that gets into the injectors. The precision of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after verifying, this noise originates from another part of the engine of your Mazda CX 7, check this content page for more informations.
The repercussions of injector noise on Mazda CX 7
Now that we have analyzed the several reasons for injector noise on your Mazda CX 7, we will end by stating the possible effects of malfunctioning one or more of your injectors. Whether only one is obstructed, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can fairly quickly become severe….
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 basic consequences experienced by drivers is a distinctive 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 deteriorating one of your pistons or your engine. Poor combustion will fairly quickly harm 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 swapping your diesel fuel filter regularly>
