It is rarely ever pleasant to listen to an injector noise on your Volkswagen Jetta. It is a noise that comes up regularly, usually when you accelerate or your engine is idling. However, this warning sign may be linked to several sort of problems with your vehicle injectors. It may not be anything serious, but when a continuing noise happens, you have to be sure. Specifically since repairing your Volkswagen Jetta’s injectors can be expensive. That’s why our team chose to produce this content page in order to help you see more clearly, learn about the different plausible failures and identify your issue. To do this, we will first look at the normal functioning and usefulness of the injectors in your Volkswagen Jetta, then at the plausible reasons from which an injector noise may come.
Attributes of the injectors
Injectors are a very important element of the operation of your engine unit. They were brought in to the modern automobiles about 20 years ago. Before their arrival, 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 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 compiled from the various sensors equipping the vehicle (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 obtain the best possible combustion in the cylinders.
The different causes of a clicking or knocking noise coming from the injectors of your Volkswagen Jetta
Finding out injector noises on your Volkswagen Jetta may result from different origins, we will now center on the potential triggers 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 put into practice to eliminate them. If you listen to another clicking noise but it is not from your injectors, we advise you to browse this content page about clicking noise on Volkswagen Jetta to discover the cause.
The reasons for injector clicking or knocking noise Volkswagen Jetta
A clicking or knocking noise from your injectors can be explained for different reasons. In fact, the injectors of your Volkswagen Jetta 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 mission is to control the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three characteristics is modified, the main functionality of the injectors will be disturbed 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 trigger thoses knocking or clicking noises on your Volkswagen Jetta. The main cause of these situations usually 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 up in a malfunction of the injector. If after checking, this noise originates from another component of the engine of your Volkswagen Jetta, browse this content page for more informations.
The repercussions of injector noise on Volkswagen Jetta
Now that we have reviewed the diverse reasons for injector noise on your Volkswagen Jetta, we will end by stating the possible 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 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 basic effects noticed by drivers is a distinctive 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 deteriorating one of your pistons or your engine. Poor combustion will almost instantly affect your cylinders or pistons and your engine may tighten.
Here are three little recommendations 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>
