It is never enjoyable to hear an injector noise on your Scion tC. It is a noise that arises repeatedly, usually when you accelerate or your engine is idling. However, this warning sign may be related to different kind of trouble with your car injectors. It may not be anything serious, but when a repeated noise happens, you have to be sure. Especially since fixing your Scion tC’s injectors can be expensive. That’s why our team decided to produce this content in order to help you see more clearly, learn about the different plausible failures and establish your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Scion tC, then at the plausible triggers from which an injector noise may come.
Benefits of the injectors
Injectors are a very fundamental part of the operation of your engine unit. They were brought in to the modern cars 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 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 obtain the best possible combustion in the cylinders.
The different reasons of a clicking or knocking noise coming from the injectors of your Scion tC
Discovering injector noises on your Scion tC may originate from different locations, 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 different sources of these noises and the solutions to be adopted to prevent them. If you hear another clicking noise but it is not from your injectors, we suggest you to examine this content about clicking noise on Scion tC to discover the cause.
The explanations for injector clicking or knocking noise Scion tC
A clicking or knocking noise from your injectors can be justified by different explanations. Indeed, the injectors of your Scion tC have three main tasks, to manage the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease 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 tasks is modified, the main role of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Scion tC. The main cause of these problems 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 result in a malfunction of the injector. If after checking, this noise originates from another part of the engine of your Scion tC, read this content for more infos.
The side effects of injector noise on Scion tC
Now that we have examined the different reasons for injector noise on your Scion tC, we will end by stating the possible side effects 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 side effects which can almost instantly become severe….
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 regular consequences noticed by drivers is a serious 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 almost instantly harm your cylinders or pistons and your engine may tighten.
Here are three little tips 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>
