You’ve most likely already been aware of the well-known EGR valve, the anti-pollution valve. It is not usually appreciated by drivers because it is likely to develop more trouble than anything else… Actually, depending on the use you are going to make of your automobile, it can become blocked and cause you a lot of concerns. If this is the case, you are most likely concerned about how to clean the EGR valve of your Toyota Avalon ? Don’t be anxious, we’ve prepared this article content to help you with this task. To do this, we will initially check out the role of the EGR valve, then what are the failures that the EGR valve of your Toyota Avalon can provoke and at last the section that will most likely interest you the most, how to clean the EGR valve Toyota Avalon?

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How to Clean your Toyota Avalon EGR Valve: Role and Operation

Purpose of the EGR valve

The EGR valve of your car has been added to diesel engines mostly to reduce pollution emitted by vehicles and to match EURO requirements on Toyota Avalon . It will consequently influence the quality of exhaust gas output and eradicate toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we discover how to clean the EGR valve on your Toyota Avalon , we will take a look at how it functions. As described before, its goal is to clean the exhaust gases, 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 eradicate all unburned toxic particles. It will function mostly at low speed because at high speed the combustion is enough to burn all these gases.

How to clean your Toyota Avalon EGR valve: Identifying faults

The EGR valve, although very beneficial to limit the pollution emissions of your Toyota Avalon , will regrettably tend to clog up because of soot/gas deposits that will build up in its mechanism, which will finally risk obstructing the operation of the valve, until entirely blocking the engine, here are the signs of illness that a defective EGR valve on your Toyota Avalon can cause:

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

How to clean your Toyota Avalon EGR valve: In practice

And now we’ll begin the section you are most serious 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 Toyota Avalon EGR valve system: Without dismantle

Although this methodology is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, in fact, 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 Toyota Avalon.

How to clean your car EGR valve: With disassembly

Here is the most efficient methodology, which will require enough access to the EGR valve to execute the process on your own. If so, the process 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 simple steps are carried out, now comes the time for cleaning. To make this happen, 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 Toyota Avalon.

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 parts that hinder access for example), how to clean the EGR valve of your Toyota Avalon? 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 depending on the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Toyota Avalon

At last, some individuals make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their Toyota Avalon, they just choose to block it in the closed position. This manipulation will have the effect of greatly increasing the pollution emitted by the automobile, of no longer complying with pollution requirements, of having an engine warning light permanently on and ultimately 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 check out our dedicated page.

To discover more tips on the Toyota Avalon, take a look at the Toyota Avalon category.