You’ve almost certainly previously heard of the famous EGR valve, the anti-pollution valve. It is not generally appreciated by drivers because it tends to develop more concerns than anything else… Indeed, based on the use you are going to make of your automobile, it can become blocked and trigger you a lot of problems. If this is the case, you are almost certainly wanting to know how to clean the EGR valve of your Honda HR V ? Don’t get worried, we’ve prepared this article to help you with this task. To do this, we will initially take a look at the role of the EGR valve, then what are the failures that the EGR valve of your Honda HR V can bring on and to finish the section that will almost certainly concern you the most, how to clean the EGR valve Honda HR V?


How to Clean your Honda HR V EGR Valve: Role and Operation

Purpose of the EGR valve

The EGR valve of your car has been integrated to diesel engines mainly to reduce pollution released by automobiles and to match EURO requirements on Honda HR V . It will therefore influence the quality of exhaust gas output and reduce toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we discover how to clean the EGR valve on your Honda HR V , we will have a look at how it works. As seen just before, its mission is to clean the exhaust gases, so it will be positioned 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 reduce all unburned toxic particles. It will operate mostly at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Honda HR V EGR valve: Identifying faults

The EGR valve, although very important to limit the pollution emissions of your Honda HR V , will sadly tend to clog up because of soot/gas deposits that will accumulate in its mechanism, which will ultimately risk blocking the operation of the valve, until totally blocking the engine unit, here are the symptoms that a faulty EGR valve on your Honda HR V can provoke:

  • Motor light on
  • Power loss
  • Technical assesment rejected
  • Black fumes
  • Vehicle that grazes at low speed
  • Low RPM settings

How to clean your Honda HR V EGR valve: In practice

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

Do it yourself

How to clean your Honda HR V EGR valve system: Without dismantle

Although this technique is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, the truth is, you will only need to use fuel additives, equivalent to the products used to clean the injection. These specific products 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 Honda HR V.

How to clean your car EGR valve: With disassembly

Here is the most reliable technique, which will require sufficient access to the EGR valve to carry out the process yourself. If so, the procedure is fairly easy. 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 steps are accomplished, now comes the time for cleaning. To get this done, 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 canal 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 Honda HR V.

Have it done by a professional

If, your EGR valve is not accessible 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 Honda HR V? In this instance, it would be better rather than launching yourself into an overly complex task, you turn to an auto mechanic. He will be able to carry out the job more cleanly and will be able, if required, to change the valve if it is dead. The cost of cleaning based on the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Honda HR V

At last, a number of people make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Honda HR V, they simply prefer to block it in the closed position. This treatment will have the outcome of greatly increasing the pollution released by the automobile, of no longer complying with pollution standards, of having an engine warning light all day on and finally risk fouling the engine. We strongly advise against making this choice. If you have other questions or want to learn more about your car, don’t hesitate to take a look at our dedicated page.

If you need more tutorials on the Honda HR V, go to our Honda HR V category.