It is never pleasurable to experience an injector noise on your Volkswagen Rabbit. It is a noise that appears regularly, usually when you accelerate or your engine is idling. However, this symptom may be related to multiple kind of problems with your automobile injectors. It may not be anything major, but when a recurrent noise shows up, you have to be sure. Especially since repairing your Volkswagen Rabbit’s injectors can be costly. That’s why our team decided to produce this content in order to support 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 Rabbit, then at the plausible triggers from which an injector noise may come.
Benefits of the injectors
Injectors are a very fundamental element of the operation of your engine unit. They were introduced to the modern vehicles 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 accurately (quantity of fuel injected, air/fuel mixture) via the analysis of the data collected from the various sensors equipping the automobile (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 origins of a clicking or knocking noise coming from the injectors of your Volkswagen Rabbit
Discovering injector noises on your Volkswagen Rabbit may result from different origins, we will now concentrate on the potential triggers of these. In general, the typical noise of a faulty injector is of the snap type. Here are the different sources of these noises and the solutions to be put into practice to get rid of them. If you experience another clicking noise but it is not from your injectors, we recommend you to examine this content about clicking noise on Volkswagen Rabbit to discover the cause.
The reasons for injector clicking or knocking noise Volkswagen Rabbit
A clicking or knocking noise from your injectors can be justified by different reasons. In fact, the injectors of your Volkswagen Rabbit have three main missions, to control the vaporisation of the fuel, i.e., to transform the liquid into “gas” during injection, to facilitate its combustion. Then, its mission is to manage the air/fuel dosage and finally the homogeneity of the mixture, always with the target of improving combustion. If one of these three features is modified, 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 resulting from bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will induce thoses knocking or clicking noises on your Volkswagen Rabbit. The main cause of these situations in most cases 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 verifying, this noise originates from another component of the engine of your Volkswagen Rabbit, read this content for more infos.
The end result of injector noise on Volkswagen Rabbit
Now that we have examined the several reasons for injector noise on your Volkswagen Rabbit, 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 effects which can fairly quickly become considerable….
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 known effects noticed by drivers is a noticeable 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 fairly quickly affect your cylinders or pistons and your engine may tighten.
Here are three little suggestions to limit the risks connected to 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>
