You’ve likely previously heard of the popular EGR valve, the anti-pollution valve. It is not usually appreciated by drivers because it tends to cause more problems than anything else… Indeed, determined by the use you are going to make of your vehicle, it can become congested and bring about you a lot of trouble. If this is the situation, you are likely concerned about how to clean the EGR valve of your Honda Odyssey ? Don’t get worried, we’ve well prepared this article content to help you with this operation. To achieve this, we will initially look at the intent of the EGR valve, then what are the failures that the EGR valve of your Honda Odyssey can bring on and finally the part that will likely interest you the most, how to clean the EGR valve Honda Odyssey?

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How to Clean your Honda Odyssey EGR Valve: Role and Operation

Role of the EGR valve

The EGR valve of your car has been integrated to diesel engines principally to reduce pollution emitted by cars and to fulfill EURO standards on Honda Odyssey . It will consequently control the quality of exhaust gas output and eliminate toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we learn how to clean the EGR valve on your Honda Odyssey , we will check out how it operates. As described just before, its mission is to clean the exhaust fumes, 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 eliminate all unburned toxic particles. It will run mainly at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Honda Odyssey EGR valve: Identifying faults

The EGR valve, even though very useful to limit the pollution emissions of your Honda Odyssey , will regrettably tend to clog up because of soot/gas deposits that will accumulate in its system, which will finally risk obstructing the operation of the valve, until entirely blocking the engine motor, here are the signs of illness that a defective EGR valve on your Honda Odyssey can bring about:

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

How to clean your Honda Odyssey EGR valve: In practice

And now we’ll commence the part you are most interested in, how to clean the EGR valve of your car. Here are the two ways that you can use.

Do it on your own

How to clean your Honda Odyssey EGR valve system: Without taking it apart

Even though this procedure is less effective, 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 particular 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 Honda Odyssey.

How to clean your car EGR valve: With disassembly

Here is the most efficient procedure, which will require sufficient access to the EGR valve to perform the operation on your own. If so, the operation is fairly straightforward. 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 simple steps are completed, now comes the time for cleaning. To do 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 as well 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 Honda Odyssey.

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 auto parts that hinder access for example), how to clean the EGR valve of your Honda Odyssey? In such a case, it would be better rather than launching yourself into an overly complex operation, you turn to an auto mechanic. He will be able to accomplish the job more cleanly and will be able, if necessary, to change the valve if it is dead. The cost of cleaning determined by the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Honda Odyssey

Finally, some individuals make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Honda Odyssey, they just prefer to block it in the closed position. This treatment will have the result of greatly increasing the pollution emitted by the vehicle, of no longer complying with pollution requirements, of having an engine warning light permanently on and finally risk fouling the engine. We strongly recommend 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.

Whenever you have any further questions about the Honda Odyssey, do not hesitate to consult our Honda Odyssey category.