You’ve most likely already heard of the well-known EGR valve, the anti-pollution valve. It is not generally appreciated by motorists because it is likely to create more problems than anything else… In reality, dependant upon the use you are going to make of your car, it can become clogged and cause you a lot of concerns. If this is the case, you are most likely wondering how to clean the EGR valve of your Hyundai Elantra ? Don’t be anxious, we’ve well prepared this article to help you with this task. To do so, we will initially take a look at the goal of the EGR valve, then what are the failures that the EGR valve of your Hyundai Elantra can reason and at last the section that will most likely appeal you the most, how to clean the EGR valve Hyundai Elantra?

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How to Clean your Hyundai Elantra EGR Valve: Role and Operation

Role of the EGR valve

The EGR valve of your car has been integrated to diesel engines mostly to lower pollution emitted by automobiles and to fulfill EURO measures on Hyundai Elantra . It will as a result control the quality of exhaust gas output and eliminate toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we discover how to clean the EGR valve on your Hyundai Elantra , we will examine how it works. As seen before, its task is to clean the exhaust fumes, so it will be installed at the engine outlet, thanks to a valve, it will be able to return the unburned exhaust gases to the engine for a second burn which will eliminate all unburned toxic particles. It will perform principally at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Hyundai Elantra EGR valve: Identifying faults

The EGR valve, although very useful to limit the pollution emissions of your Hyundai Elantra , will sadly tend to clog up because of soot/gas deposits that will accumulate in its mechanism, which will finally risk blocking the operation of the valve, until totally blocking the engine, here are the signs of illness that a defective EGR valve on your Hyundai Elantra can cause:

  • Motor light on
  • Power loss
  • Technical inspection refused
  • Black fumes
  • Car that grazes at low speed
  • Low RPM settings

How to clean your Hyundai Elantra EGR valve: In practice

And now we’ll begin the section you are most enthusiastic about, how to clean the EGR valve of your car. Here are the two methods that you can use.

Do it on your own

How to clean your Hyundai Elantra EGR valve system: Without dismantle

Even though this technique is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, the reality is, you will only need to use fuel additives, equivalent to the products used to clean the injection. These specific solutions must be injected into the running engine, at the right operating temperature, diluted in about 20 litres of fuel and run the engine for 3 or 4 minutes in high rev to clean the EGR valve of your Hyundai Elantra.

How to clean your car EGR valve: With disassembly

Here is the strongest technique, which will require sufficient access to the EGR valve to perform the treatment on your own. If so, the procedure is fairly simple. You will need to disconnect the electromagnet from the EGR valve, remove the few screws that hold it in place, and remove it. Once these guidelines are finished, now comes the time for cleaning. To achieve this, you will need to use a product such as solvent, petrol, oven cleaning product, which you will leave to act for ten minutes, then scrape off the rest using a scraper, finish cleaning with wire brush. If you want to go further, you can also clean the two conduits on which it is connected which may be scorched, for this, use a scraper and a vacuum cleaner to avoid dropping deposits in the conduits. You will only have to reassemble it and you will have finished cleaning the EGR valve of your Hyundai Elantra.

Have it done by a professional

If, your EGR valve is not reachable because of the series or the engine of your car and if removing it would cause too many troubles (removing too many elements that hinder access for example), how to clean the EGR valve of your Hyundai Elantra? In cases like this, it would be better rather than launching yourself into an overly complex task, you turn to an auto mechanic. He will be able to perform the job more cleanly and will be able, if required, to change the valve if it is dead. The cost of cleaning dependant upon the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Hyundai Elantra

Finally, some individuals make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Hyundai Elantra, they simply prefer to block it in the closed position. This treatment will have the effect of greatly increasing the pollution emitted by the car, of no longer complying with pollution requirements, of having an engine warning light all day on and in the end risk fouling the engine. We strongly suggest against making this choice. If you have other questions or want to learn more about your car, don’t think twice to take a look at our dedicated page.

If you wish more tutorials on the Hyundai Elantra, go to our Hyundai Elantra category.