It is hardly ever pleasant to listen an injector noise on your Chevrolet HHR. It is a noise that arises continually, usually when you accelerate or your engine is idling. However, this indicator may be connected to several types of complications with your vehicle injectors. It may not be anything major, but when a repeated noise comes out, you have to be sure. Especially since replacing your Chevrolet HHR’s injectors can be expensive. That’s why our team chose to write this content in order to support you see more clearly, learn about the different conceivable failures and determine your problem. To do this, we will first look at the normal running and usefulness of the injectors in your Chevrolet HHR, then at the conceivable triggers from which an injector noise may come.
Functions of the injectors
Injectors are a very fundamental component of the operation of your engine. They were introduced to the modern automobiles 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 ability, 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 vehicle (engine temperature, acceleration level, engine speed, etc.). Their purpose 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 based on the injectors of your Chevrolet HHR
Hearing injector noises on your Chevrolet HHR may come from different locations, we will now center on the potential causes of these. In most cases, the regular noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be implemented to stop them. If you listen another clicking noise but it is not from your injectors, we suggest you to read this content about clicking noise on Chevrolet HHR to discover the cause.
The causes for injector clicking or knocking noise Chevrolet HHR
A clicking or knocking noise from your injectors can be justified by different causes. Indeed, the injectors of your Chevrolet HHR 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 task 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 tasks 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 due to bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Chevrolet HHR. The main cause of these problems generally comes 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 comes from another part of the engine of your Chevrolet HHR, browse this content for more informations.
The effects of injector noise on Chevrolet HHR
Now that we have examined the several causes for injector noise on your Chevrolet HHR, 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 effects which can fairly quickly become critical….
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 consequences noticed by drivers is a significant loss of power. Indeed, 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 fairly quickly 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 swapping your diesel fuel filter regularly>
