It is never enjoyable to hear an injector noise on your GMC Terrain. It is a noise that arises regularly, usually when you accelerate or your engine is idling. However, this indicator may be linked to several sort of trouble with your automobile injectors. It may not be anything serious, but when a frequent noise comes out, you have to be sure. Especially since replacing your GMC Terrain’s injectors can be costly. That’s why our team chose to create this article in order to help you see more clearly, learn about the different plausible failures and distinguish your issue. To do this, we will first look at the normal running and usefulness of the injectors in your GMC Terrain, then at the plausible reasons from which an injector noise may come.
Benefits of the injectors
Injectors are a very significant part of the operation of your engine motor. They were launched to the modern automobiles 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 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 accumulated from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their goal 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 causes of a clicking or knocking noise coming from the injectors of your GMC Terrain
Listening injector noises on your GMC Terrain may result from different sources, we will now concentrate on the potential causes of these. Generally, the common 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 prevent them. If you hear another clicking noise but it is not from your injectors, we encourage you to read this article about clicking noise on GMC Terrain to locate the cause.
The reasons for injector clicking or knocking noise GMC Terrain
A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your GMC Terrain have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its objective is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the aim of improving combustion. If one of these three features 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 because of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will trigger thoses knocking or clicking noises on your GMC Terrain. The main cause of these problems generally originates from a particle that gets into the injectors. The accuracy 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 originates from another element of the engine of your GMC Terrain, browse this article for more infos.
The repercussions of injector noise on GMC Terrain
Now that we have reviewed the different causes for injector noise on your GMC Terrain, we will end by stating the possible effects of malfunctioning one or more of your injectors. Whether only one is clogged, or damaged, or your entire fuel rail is involved, you cannot escape these consequences which can quickly become serious….
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 effects felt by drivers is a serious loss of power. In fact, if your engine is running on 3 out of 4 cylinders for example, you will surely have a loss of power
Finally, you risk degrading one of your pistons or your engine. Poor combustion will quickly harm your cylinders or pistons and your engine may tighten.
Here are three little tips 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>
