It is hardly ever relaxing to hear an injector noise on your Volkswagen Tiguan. It is a noise that appears repeatedly, usually when you accelerate or your engine is idling. However, this indicator may be connected to multiple types of trouble with your vehicle injectors. It may not be anything major, but when a continuing noise shows up, you have to be sure. Specifically since replacing your Volkswagen Tiguan’s injectors can be expensive. That’s why our team decided to create this article in order to support you see more clearly, learn about the different conceivable failures and identify your problem. To do this, we will first look at the normal functioning and usefulness of the injectors in your Volkswagen Tiguan, then at the conceivable causes from which an injector noise may come.
Purposes of the injectors
Injectors are a very important part of the operation of your engine. They were released to the modern vehicles 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 opportunity, 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 vehicle (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 coming from the injectors of your Volkswagen Tiguan
Experiencing injector noises on your Volkswagen Tiguan may result from different origins, we will now center on the potential causes of these. In most cases, the typical 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 suggest you to read this article about clicking noise on Volkswagen Tiguan to locate the cause.
The reasons for injector clicking or knocking noise Volkswagen Tiguan
A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your Volkswagen Tiguan 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 goal is to deal with the air/fuel dosage and finally the homogeneity of the mixture, always with the objective of improving combustion. If one of these three characteristics is altered, 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 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 Volkswagen Tiguan. The main cause of these trouble 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 in a malfunction of the injector. If after checking, this noise originates from another element of the engine of your Volkswagen Tiguan, check this article for more informations.
The end result of injector noise on Volkswagen Tiguan
Now that we have analyzed the several causes for injector noise on your Volkswagen Tiguan, we will end by stating the possible side effects of malfunctioning one or more of your injectors. Whether only one is blocked, or damaged, 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 known consequences experienced 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 inevitably have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will almost instantly damage 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>
